Articles | Volume 12, issue 7
https://doi.org/10.5194/bg-12-2131-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-12-2131-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
10 Apr 2015
Research article |
| 10 Apr 2015
Reconstruction of secular variation in seawater sulfate concentrations
T. J. Algeo
CORRESPONDING AUTHOR
Department of Geology, University of Cincinnati, Cincinnati, Ohio 45221-0013, USA
State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan, 430074, China
G. M. Luo
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan, 430074, China
H. Y. Song
State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
T. W. Lyons
Department of Earth Sciences, University of California, Riverside, California 92521-0423, USA
D. E. Canfield
Nordic Center for Earth Evolution (NordCEE) and Institute of Biology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
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T. J. Algeo, P. A. Meyers, R. S. Robinson, H. Rowe, and G. Q. Jiang
Biogeosciences, 11, 1273–1295, https://doi.org/10.5194/bg-11-1273-2014, https://doi.org/10.5194/bg-11-1273-2014, 2014
A. Sturm, D. A. Fowle, C. Jones, K. Leslie, S. Nomosatryo, C. Henny, D. E. Canfield, and S. A. Crowe
Biogeosciences Discuss., https://doi.org/10.5194/bg-2015-533, https://doi.org/10.5194/bg-2015-533, 2016
Revised manuscript has not been submitted
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Methane is a very potent greenhouse gas whose release into the atmosphere has become a growing concern for global climate change. In nearly every aquatic environment there are microbes which either produce methane as a by-product of their metabolism or consume it for energy. Our work examined the rates of methane consumption through experimentation in a deep tropical lake to help quantify global emissions of this greenhouse gas from these environments and provide context for paleo-carbon cycles.
T. J. Algeo, P. A. Meyers, R. S. Robinson, H. Rowe, and G. Q. Jiang
Biogeosciences, 11, 1273–1295, https://doi.org/10.5194/bg-11-1273-2014, https://doi.org/10.5194/bg-11-1273-2014, 2014
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Biogeochemistry: Stable Isotopes & Other Tracers
Technical note: A Bayesian mixing model to unravel isotopic data and quantify trace gas production and consumption pathways for time series data – Time-resolved FRactionation And Mixing Evaluation (TimeFRAME)
Separating above-canopy CO2 and O2 measurements into their atmospheric and biospheric signatures
Position-specific kinetic isotope effects for nitrous oxide: A new expansion of the Rayleigh model
Climatic controls on leaf wax hydrogen isotope ratios in terrestrial and marine sediments along a hyperarid-to-humid gradient
Fractionation of stable carbon isotopes during microbial propionate consumption in anoxic rice paddy soils
Sources and sinks of carbonyl sulfide inferred from tower and mobile atmospheric observations in the Netherlands
Downpour dynamics: outsized impacts of storm events on unprocessed atmospheric nitrate export in an urban watershed
The hidden role of dissolved organic carbon in the biogeochemical cycle of carbon in modern redox-stratified lakes
Biogeochemical processes captured by carbon isotopes in redox-stratified water columns: a comparative study of four modern stratified lakes along an alkalinity gradient
Partitioning of carbon export in the euphotic zone of the oligotrophic South China Sea
Determination of respiration and photosynthesis fractionation factors for atmospheric dioxygen inferred from a vegetation–soil–atmosphere analogue of the terrestrial biosphere in closed chambers
Permafrost degradation and nitrogen cycling in Arctic rivers: insights from stable nitrogen isotope studies
Neodymium budget in the Mediterranean Sea: evaluating the role of atmospheric dusts using a high-resolution dynamical-biogeochemical model
Nitrate isotope investigations reveal future impacts of climate change on nitrogen inputs and cycling in Arctic fjords: Kongsfjorden and Rijpfjorden (Svalbard)
Mineralization of autochthonous particulate organic carbon is a fast channel of organic matter turnover in Germany's largest drinking water reservoir
Carbon isotopic ratios of modern C3 and C4 vegetation on the Indian peninsula and changes along the plant–soil–river continuum – implications for vegetation reconstructions
Controls on nitrite oxidation in the upper Southern Ocean: insights from winter kinetics experiments in the Indian sector
Tracing the source of nitrate in a forested stream showing elevated concentrations during storm events
Intra-skeletal variability in phosphate oxygen isotope composition reveals regional heterothermies in marine vertebrates
Isotopic differences in soil–plant–atmosphere continuum composition and control factors of different vegetation zones on the northern slope of the Qilian Mountains
An analysis of the variability in δ13C in macroalgae from the Gulf of California: indicative of carbon concentration mechanisms and isotope discrimination during carbon assimilation
Summertime productivity and carbon export potential in the Weddell Sea, with a focus on the waters adjacent to Larsen C Ice Shelf
Particulate biogenic barium tracer of mesopelagic carbon remineralization in the Mediterranean Sea (PEACETIME project)
Hydrogen and carbon isotope fractionation factors of aerobic methane oxidation in deep-sea water
Host-influenced geochemical signature in the parasitic foraminifera Hyrrokkin sarcophaga
Comparing modified substrate-induced respiration with selective inhibition (SIRIN) and N2O isotope approaches to estimate fungal contribution to denitrification in three arable soils under anoxic conditions
How are oxygen budgets influenced by dissolved iron and growth of oxygenic phototrophs in an iron-rich spring system? Initial results from the Espan Spring in Fürth, Germany
Stable isotope ratios in seawater nitrate reflect the influence of Pacific water along the northwest Atlantic margin
High-resolution 14C bomb peak dating and climate response analyses of subseasonal stable isotope signals in wood of the African baobab – a case study from Oman
Geographic variability in freshwater methane hydrogen isotope ratios and its implications for global isotopic source signatures
Seasonality of nitrogen sources, cycling, and loading in a New England river discerned from nitrate isotope ratios
Evaluating the response of δ13C in Haloxylon ammodendron, a dominant C4 species in Asian desert ecosystems, to water and nitrogen addition as well as the availability of its δ13C as an indicator of water use efficiency
Modern silicon dynamics of a small high-latitude subarctic lake
Radium-228-derived ocean mixing and trace element inputs in the South Atlantic
Nitrogen isotopic fractionations during nitric oxide production in an agricultural soil
Silicon uptake and isotope fractionation dynamics by crop species
Barium stable isotopes as a fingerprint of biological cycling in the Amazon River basin
Bottomland hardwood forest growth and stress response to hydroclimatic variation: evidence from dendrochronology and tree ring Δ13C values
N2O isotope approaches for source partitioning of N2O production and estimation of N2O reduction – validation with the 15N gas-flux method in laboratory and field studies
Technical note: Single-shell δ11B analysis of Cibicidoides wuellerstorfi using femtosecond laser ablation MC-ICPMS and secondary ion mass spectrometry
Biogeochemical evidence of anaerobic methane oxidation and anaerobic ammonium oxidation in a stratified lake using stable isotopes
Effects of 238U variability and physical transport on water column 234Th downward fluxes in the coastal upwelling system off Peru
Do degree and rate of silicate weathering depend on plant productivity?
Alpine Holocene tree-ring dataset: age-related trends in the stable isotopes of cellulose show species-specific patterns
Ideas and perspectives: The same carbon behaves like different elements – an insight into position-specific isotope distributions
Seasonal dynamics of the COS and CO2 exchange of a managed temperate grassland
Leaf-scale quantification of the effect of photosynthetic gas exchange on Δ17O of atmospheric CO2
The stable carbon isotope signature of methane produced by saprotrophic fungi
Understanding the effects of early degradation on isotopic tracers: implications for sediment source attribution using compound-specific isotope analysis (CSIA)
Oxygen isotope composition of waters recorded in carbonates in strong clumped and oxygen isotopic disequilibrium
Eliza Harris, Philipp Fischer, Maciej P. Lewicki, Dominika Lewicka-Szczebak, Stephen J. Harris, and Fernando Perez-Cruz
Biogeosciences, 21, 3641–3663, https://doi.org/10.5194/bg-21-3641-2024, https://doi.org/10.5194/bg-21-3641-2024, 2024
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Greenhouse gases are produced and consumed via a number of pathways. Quantifying these pathways helps reduce the climate and environmental footprint of anthropogenic activities. The contribution of the pathways can be estimated from the isotopic composition, which acts as a fingerprint for these pathways. We have developed the Time-resolved FRactionation And Mixing Evaluation (TimeFRAME) model to simplify interpretation and estimate the contribution of different pathways and their uncertainty.
Kim A. P. Faassen, Jordi Vilà-Guerau de Arellano, Raquel González-Armas, Bert G. Heusinkveld, Ivan Mammarella, Wouter Peters, and Ingrid T. Luijkx
Biogeosciences, 21, 3015–3039, https://doi.org/10.5194/bg-21-3015-2024, https://doi.org/10.5194/bg-21-3015-2024, 2024
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The ratio between atmospheric O2 and CO2 can be used to characterize the carbon balance at the surface. By combining a model and observations from the Hyytiälä forest (Finland), we show that using atmospheric O2 and CO2 measurements from a single height provides a weak constraint on the surface CO2 exchange because large-scale processes such as entrainment confound this signal. We therefore recommend always using multiple heights of O2 and CO2 measurements to study surface CO2 exchange.
Elise D. Rivett, Wenjuan Ma, Nathaniel E. Ostrom, and Eric L. Hegg
EGUsphere, https://doi.org/10.5194/egusphere-2024-963, https://doi.org/10.5194/egusphere-2024-963, 2024
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Many different processes produce nitrous oxide (N2O), a potent greenhouse gas. Measuring the ratio of heavy and light nitrogen isotopes (15N/14N) for the non-exchangeable central and outer N atoms of N2O helps to distinguish sources of N2O. To accurately calculate the position-specific isotopic preference, we developed an expansion of the widely-used Rayleigh model. Application of our new model to simulated and experimental data demonstrates its improved accuracy for analyzing N2O synthesis.
Nestor Gaviria-Lugo, Charlotte Läuchli, Hella Wittmann, Anne Bernhardt, Patrick Frings, Mahyar Mohtadi, Oliver Rach, and Dirk Sachse
Biogeosciences, 20, 4433–4453, https://doi.org/10.5194/bg-20-4433-2023, https://doi.org/10.5194/bg-20-4433-2023, 2023
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We analyzed how leaf wax hydrogen isotopes in continental and marine sediments respond to climate along one of the strongest aridity gradients in the world, from hyperarid to humid, along Chile. We found that under extreme aridity, the relationship between hydrogen isotopes in waxes and climate is non-linear, suggesting that we should be careful when reconstructing past hydrological changes using leaf wax hydrogen isotopes so as to avoid overestimating how much the climate has changed.
Ralf Conrad and Peter Claus
Biogeosciences, 20, 3625–3635, https://doi.org/10.5194/bg-20-3625-2023, https://doi.org/10.5194/bg-20-3625-2023, 2023
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Knowledge of carbon isotope fractionation is important for the assessment of the pathways involved in the degradation of organic matter. Propionate is an important intermediate. In the presence of sulfate, it was degraded by Syntrophobacter species via acetate to CO2. In the absence of sulfate, it was mainly consumed by Smithella and methanogenic archaeal species via butyrate and acetate to CH4. However, stable carbon isotope fractionation during the degradation process was quite small.
Alessandro Zanchetta, Linda M. J. Kooijmans, Steven van Heuven, Andrea Scifo, Hubertus A. Scheeren, Ivan Mammarella, Ute Karstens, Jin Ma, Maarten Krol, and Huilin Chen
Biogeosciences, 20, 3539–3553, https://doi.org/10.5194/bg-20-3539-2023, https://doi.org/10.5194/bg-20-3539-2023, 2023
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Carbonyl sulfide (COS) has been suggested as a tool to estimate carbon dioxide (CO2) uptake by plants during photosynthesis. However, understanding its sources and sinks is critical to preventing biases in this estimate. Combining observations and models, this study proves that regional sources occasionally influence the measurements at the 60 m tall Lutjewad tower (1 m a.s.l.; 53°24′ N, 6°21′ E) in the Netherlands. Moreover, it estimates nighttime COS fluxes to be −3.0 ± 2.6 pmol m−2 s−1.
Joel T. Bostic, David M. Nelson, and Keith N. Eshleman
Biogeosciences, 20, 2485–2498, https://doi.org/10.5194/bg-20-2485-2023, https://doi.org/10.5194/bg-20-2485-2023, 2023
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Land-use changes can affect water quality. We used tracers of pollution sources and water flow paths to show that an urban watershed exports variable sources during storm events relative to a less developed watershed. Our results imply that changing precipitation patterns combined with increasing urbanization may alter sources of pollution in the future.
Robin Havas, Christophe Thomazo, Miguel Iniesto, Didier Jézéquel, David Moreira, Rosaluz Tavera, Jeanne Caumartin, Elodie Muller, Purificación López-García, and Karim Benzerara
Biogeosciences, 20, 2405–2424, https://doi.org/10.5194/bg-20-2405-2023, https://doi.org/10.5194/bg-20-2405-2023, 2023
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Dissolved organic carbon (DOC) is a reservoir of prime importance in the C cycle of both continental and marine systems. It has also been suggested to influence the past Earth climate but is still poorly characterized in ancient-Earth-like environments. In this paper we show how DOC analyses from modern redox-stratified lakes can evidence specific metabolic reactions and environmental factors and how these can help us to interpret the C cycle of specific periods in the Earth's past.
Robin Havas, Christophe Thomazo, Miguel Iniesto, Didier Jézéquel, David Moreira, Rosaluz Tavera, Jeanne Caumartin, Elodie Muller, Purificación López-García, and Karim Benzerara
Biogeosciences, 20, 2347–2367, https://doi.org/10.5194/bg-20-2347-2023, https://doi.org/10.5194/bg-20-2347-2023, 2023
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We describe the C cycle of four modern stratified water bodies from Mexico, a necessary step to better understand the C cycle of primitive-Earth-like environments, which were dominated by these kinds of conditions. We highlight the importance of local external factors on the C cycle of these systems. Notably, they influence the sensitivity of the carbonate record to environmental changes. We also show the strong C-cycle variability among these lakes and their organic C sediment record.
Yifan Ma, Kuanbo Zhou, Weifang Chen, Junhui Chen, Jin-Yu Terence Yang, and Minhan Dai
Biogeosciences, 20, 2013–2030, https://doi.org/10.5194/bg-20-2013-2023, https://doi.org/10.5194/bg-20-2013-2023, 2023
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We distinguished particulate organic carbon (POC) export fluxes out of the nutrient-depleted layer (NDL) and the euphotic zone. The amount of POC export flux at the NDL base suggests that the NDL could be a hotspot of particle export. The substantial POC export flux at the NDL base challenges traditional concepts that the NDL was limited in terms of POC export. The dominant nutrient source for POC export fluxes should be subsurface nutrients, which was determined by 15N isotopic mass balance.
Clémence Paul, Clément Piel, Joana Sauze, Nicolas Pasquier, Frédéric Prié, Sébastien Devidal, Roxanne Jacob, Arnaud Dapoigny, Olivier Jossoud, Alexandru Milcu, and Amaëlle Landais
Biogeosciences, 20, 1047–1062, https://doi.org/10.5194/bg-20-1047-2023, https://doi.org/10.5194/bg-20-1047-2023, 2023
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To improve the interpretation of the δ18Oatm and Δ17O of O2 in air bubbles in ice cores, we need to better quantify the oxygen fractionation coefficients associated with biological processes. We performed a simplified analogue of the terrestrial biosphere in a closed chamber. We found a respiration fractionation in agreement with the previous estimates at the microorganism scale, and a terrestrial photosynthetic fractionation was found. This has an impact on the estimation of the Dole effect.
Adam Francis, Raja S. Ganeshram, Robyn E. Tuerena, Robert G. M. Spencer, Robert M. Holmes, Jennifer A. Rogers, and Claire Mahaffey
Biogeosciences, 20, 365–382, https://doi.org/10.5194/bg-20-365-2023, https://doi.org/10.5194/bg-20-365-2023, 2023
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Climate change is causing extensive permafrost degradation and nutrient releases into rivers with great ecological impacts on the Arctic Ocean. We focused on nitrogen (N) release from this degradation and associated cycling using N isotopes, an understudied area. Many N species are released at degradation sites with exchanges between species. N inputs from permafrost degradation and seasonal river N trends were identified using isotopes, helping to predict climate change impacts.
Mohamed Ayache, Jean-Claude Dutay, Kazuyo Tachikawa, Thomas Arsouze, and Catherine Jeandel
Biogeosciences, 20, 205–227, https://doi.org/10.5194/bg-20-205-2023, https://doi.org/10.5194/bg-20-205-2023, 2023
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The neodymium (Nd) is one of the most useful tracers to fingerprint water mass provenance. However, the use of Nd is hampered by the lack of adequate quantification of the external sources. Here, we present the first simulation of dissolved Nd concentration and Nd isotopic composition in the Mediterranean Sea using a high-resolution model. We aim to better understand how the various external sources affect the Nd cycle and particularly assess how it is impacted by atmospheric inputs.
Marta Santos-Garcia, Raja S. Ganeshram, Robyn E. Tuerena, Margot C. F. Debyser, Katrine Husum, Philipp Assmy, and Haakon Hop
Biogeosciences, 19, 5973–6002, https://doi.org/10.5194/bg-19-5973-2022, https://doi.org/10.5194/bg-19-5973-2022, 2022
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Terrestrial sources of nitrate are important contributors to the nutrient pool in the fjords of Kongsfjorden and Rijpfjorden in Svalbard during the summer, and they sustain most of the fjord primary productivity. Ongoing tidewater glacier retreat is postulated to favour light limitation and less dynamic circulation in fjords. This is suggested to encourage the export of nutrients to the middle and outer part of the fjord system, which may enhance primary production within and in offshore areas.
Marlene Dordoni, Michael Seewald, Karsten Rinke, Kurt Friese, Robert van Geldern, Jakob Schmidmeier, and Johannes A. C. Barth
Biogeosciences, 19, 5343–5355, https://doi.org/10.5194/bg-19-5343-2022, https://doi.org/10.5194/bg-19-5343-2022, 2022
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Organic matter (OM) turnover into dissolved inorganic carbon (DIC) was investigated by means of carbon isotope mass balances in Germany's largest water reservoir. This includes a metalimnetic oxygen minimum (MOM). Autochthonous particulate organic carbon (POC) was the main contributor to DIC, with rates that were highest for the MOM. Generally low turnover rates outline the environmental fragility of this water body in the case that OM loads increase due to storm events or land use changes.
Frédérique M. S. A. Kirkels, Hugo J. de Boer, Paulina Concha Hernández, Chris R. T. Martes, Marcel T. J. van der Meer, Sayak Basu, Muhammed O. Usman, and Francien Peterse
Biogeosciences, 19, 4107–4127, https://doi.org/10.5194/bg-19-4107-2022, https://doi.org/10.5194/bg-19-4107-2022, 2022
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The distinct carbon isotopic values of C3 and C4 plants are widely used to reconstruct past hydroclimate, where more C3 plants reflect wetter and C4 plants drier conditions. Here we examine the impact of regional hydroclimatic conditions on plant isotopic values in the Godavari River basin, India. We find that it is crucial to identify regional plant isotopic values and consider drought stress, which introduces a bias in C3 / C4 plant estimates and associated hydroclimate reconstructions.
Mhlangabezi Mdutyana, Tanya Marshall, Xin Sun, Jessica M. Burger, Sandy J. Thomalla, Bess B. Ward, and Sarah E. Fawcett
Biogeosciences, 19, 3425–3444, https://doi.org/10.5194/bg-19-3425-2022, https://doi.org/10.5194/bg-19-3425-2022, 2022
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Nitrite-oxidizing bacteria in the winter Southern Ocean show a high affinity for nitrite but require a minimum (i.e., "threshold") concentration before they increase their rates of nitrite oxidation significantly. The classic Michaelis–Menten model thus cannot be used to derive the kinetic parameters, so a modified equation was employed that also yields the threshold nitrite concentration. Dissolved iron availability may play an important role in limiting nitrite oxidation.
Weitian Ding, Urumu Tsunogai, Fumiko Nakagawa, Takashi Sambuichi, Hiroyuki Sase, Masayuki Morohashi, and Hiroki Yotsuyanagi
Biogeosciences, 19, 3247–3261, https://doi.org/10.5194/bg-19-3247-2022, https://doi.org/10.5194/bg-19-3247-2022, 2022
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Excessive leaching of nitrate from forested catchments during storm events degrades water quality and causes eutrophication in downstream areas. Thus, tracing the source of nitrate increase during storm events in forested streams is important for sustainable forest management. Based on the isotopic compositions of stream nitrate, including Δ17O, this study clarifies that the source of stream nitrate increase during storm events was soil nitrate in the riparian zone.
Nicolas Séon, Romain Amiot, Guillaume Suan, Christophe Lécuyer, François Fourel, Fabien Demaret, Arnauld Vinçon-Laugier, Sylvain Charbonnier, and Peggy Vincent
Biogeosciences, 19, 2671–2681, https://doi.org/10.5194/bg-19-2671-2022, https://doi.org/10.5194/bg-19-2671-2022, 2022
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We analysed the oxygen isotope composition of bones and teeth of four marine species possessing regional heterothermies. We observed a consistent link between oxygen isotope composition and temperature heterogeneities recorded by classical methods. This opens up new perspectives on the determination of the thermoregulatory strategies of extant marine vertebrates where conventional methods are difficult to apply, but also allows us to investigate thermophysiologies of extinct vertebrates.
Yuwei Liu, Guofeng Zhu, Zhuanxia Zhang, Zhigang Sun, Leilei Yong, Liyuan Sang, Lei Wang, and Kailiang Zhao
Biogeosciences, 19, 877–889, https://doi.org/10.5194/bg-19-877-2022, https://doi.org/10.5194/bg-19-877-2022, 2022
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We took the water cycle process of soil–plant–atmospheric precipitation as the research objective. In the water cycle of soil–plant–atmospheric precipitation, precipitation plays the main controlling role. The main source of replenishment for alpine meadow plants is precipitation and alpine meltwater; the main source of replenishment for forest plants is soil water; and the plants in the arid foothills mainly use groundwater.
Roberto Velázquez-Ochoa, María Julia Ochoa-Izaguirre, and Martín Federico Soto-Jiménez
Biogeosciences, 19, 1–27, https://doi.org/10.5194/bg-19-1-2022, https://doi.org/10.5194/bg-19-1-2022, 2022
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Our research is the first approximation to understand the δ13C macroalgal variability in one of the most diverse marine ecosystems in the world, the Gulf of California. The life-form is the principal cause of δ13C macroalgal variability, mainly taxonomy. However, changes in habitat characteristics and environmental conditions also influence the δ13C macroalgal variability. The δ13C macroalgae is indicative of carbon concentration mechanisms and isotope discrimination during carbon assimilation.
Raquel F. Flynn, Thomas G. Bornman, Jessica M. Burger, Shantelle Smith, Kurt A. M. Spence, and Sarah E. Fawcett
Biogeosciences, 18, 6031–6059, https://doi.org/10.5194/bg-18-6031-2021, https://doi.org/10.5194/bg-18-6031-2021, 2021
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Biological activity in the shallow Weddell Sea affects the biogeochemistry of recently formed deep waters. To investigate the drivers of carbon and nutrient export, we measured rates of primary production and nitrogen uptake, characterized the phytoplankton community, and estimated nutrient depletion ratios across the under-sampled western Weddell Sea in mid-summer. Carbon export was highest at the ice shelves and was determined by a combination of physical, chemical, and biological factors.
Stéphanie H. M. Jacquet, Christian Tamburini, Marc Garel, Aurélie Dufour, France Van Vambeke, Frédéric A. C. Le Moigne, Nagib Bhairy, and Sophie Guasco
Biogeosciences, 18, 5891–5902, https://doi.org/10.5194/bg-18-5891-2021, https://doi.org/10.5194/bg-18-5891-2021, 2021
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We compared carbon remineralization rates (MRs) in the western and central Mediterranean Sea in late spring during the PEACETIME cruise, as assessed using the barium tracer. We reported higher and deeper (up to 1000 m depth) MRs in the western basin, potentially sustained by an additional particle export event driven by deep convection. The central basin is the site of a mosaic of blooming and non-blooming water masses and showed lower MRs that were restricted to the upper mesopelagic layer.
Shinsuke Kawagucci, Yohei Matsui, Akiko Makabe, Tatsuhiro Fukuba, Yuji Onishi, Takuro Nunoura, and Taichi Yokokawa
Biogeosciences, 18, 5351–5362, https://doi.org/10.5194/bg-18-5351-2021, https://doi.org/10.5194/bg-18-5351-2021, 2021
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Hydrogen and carbon isotope ratios of methane as well as the relevant biogeochemical parameters and microbial community compositions in hydrothermal plumes in the Okinawa Trough were observed. We succeeded in simultaneously determining hydrogen and carbon isotope fractionation factors associated with aerobic oxidation of methane in seawater (εH = 49.4 ± 5.0 ‰, εC = 5.2 ± 0.4 ‰) – the former being the first of its kind ever reported.
Nicolai Schleinkofer, David Evans, Max Wisshak, Janina Vanessa Büscher, Jens Fiebig, André Freiwald, Sven Härter, Horst R. Marschall, Silke Voigt, and Jacek Raddatz
Biogeosciences, 18, 4733–4753, https://doi.org/10.5194/bg-18-4733-2021, https://doi.org/10.5194/bg-18-4733-2021, 2021
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We have measured the chemical composition of the carbonate shells of the parasitic foraminifera Hyrrokkin sarcophaga in order to test if it is influenced by the host organism (bivalve or coral). We find that both the chemical and isotopic composition is influenced by the host organism. For example strontium is enriched in foraminifera that grew on corals, whose skeleton is built from aragonite, which is naturally enriched in strontium compared to the bivalves' calcite shell.
Lena Rohe, Traute-Heidi Anderson, Heinz Flessa, Anette Goeske, Dominika Lewicka-Szczebak, Nicole Wrage-Mönnig, and Reinhard Well
Biogeosciences, 18, 4629–4650, https://doi.org/10.5194/bg-18-4629-2021, https://doi.org/10.5194/bg-18-4629-2021, 2021
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This is the first experimental setup combining a complex set of methods (microbial inhibitors and isotopic approaches) to differentiate between N2O produced by fungi or bacteria during denitrification in three soils. Quantifying the fungal fraction with inhibitors was not successful due to large amounts of uninhibited N2O production. All successful methods suggested a small or missing fungal contribution. Artefacts occurring with microbial inhibition to determine N2O fluxes are discussed.
Inga Köhler, Raul E. Martinez, David Piatka, Achim J. Herrmann, Arianna Gallo, Michelle M. Gehringer, and Johannes A. C. Barth
Biogeosciences, 18, 4535–4548, https://doi.org/10.5194/bg-18-4535-2021, https://doi.org/10.5194/bg-18-4535-2021, 2021
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We investigated how high Fe(II) levels influence the O2 budget of a circum-neutral Fe(II)-rich spring and if a combined study of dissolved O (DO) and its isotopic composition can help assess this effect. We showed that dissolved Fe(II) can exert strong effects on the δ18ODO even though a constant supply of atmospheric O2 occurs. In the presence of photosynthesis, direct effects of Fe oxidation become masked. Critical Fe(II) concentrations indirectly control the DO by enhancing photosynthesis.
Owen A. Sherwood, Samuel H. Davin, Nadine Lehmann, Carolyn Buchwald, Evan N. Edinger, Moritz F. Lehmann, and Markus Kienast
Biogeosciences, 18, 4491–4510, https://doi.org/10.5194/bg-18-4491-2021, https://doi.org/10.5194/bg-18-4491-2021, 2021
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Pacific water flowing eastward through the Canadian Arctic plays an important role in redistributing nutrients to the northwest Atlantic Ocean. Using samples collected from northern Baffin Bay to the southern Labrador Shelf, we show that stable isotopic ratios in seawater nitrate reflect the fraction of Pacific to Atlantic water. These results provide a new framework for interpreting patterns of nitrogen isotopic variability recorded in modern and archival organic materials in the region.
Franziska Slotta, Lukas Wacker, Frank Riedel, Karl-Uwe Heußner, Kai Hartmann, and Gerhard Helle
Biogeosciences, 18, 3539–3564, https://doi.org/10.5194/bg-18-3539-2021, https://doi.org/10.5194/bg-18-3539-2021, 2021
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The African baobab is a challenging climate and environmental archive for its semi-arid habitat due to dating uncertainties and parenchyma-rich wood anatomy. Annually resolved F14C data of tree-ring cellulose (1941–2005) from a tree in Oman show the annual character of the baobab’s growth rings but were up to 8.8 % lower than expected for 1964–1967. Subseasonal δ13C and δ18O patterns reveal years with low average monsoon rain as well as heavy rainfall events from pre-monsoonal cyclones.
Peter M. J. Douglas, Emerald Stratigopoulos, Sanga Park, and Dawson Phan
Biogeosciences, 18, 3505–3527, https://doi.org/10.5194/bg-18-3505-2021, https://doi.org/10.5194/bg-18-3505-2021, 2021
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Hydrogen isotopes could be a useful tool to help resolve the geographic distribution of methane emissions from freshwater environments. We analyzed an expanded global dataset of freshwater methane hydrogen isotope ratios and found significant geographic variation linked to water isotopic composition. This geographic variability could be used to resolve changing methane fluxes from freshwater environments and provide more accurate estimates of the relative balance of global methane sources.
Veronica R. Rollinson, Julie Granger, Sydney C. Clark, Mackenzie L. Blanusa, Claudia P. Koerting, Jamie M. P. Vaudrey, Lija A. Treibergs, Holly C. Westbrook, Catherine M. Matassa, Meredith G. Hastings, and Craig R. Tobias
Biogeosciences, 18, 3421–3444, https://doi.org/10.5194/bg-18-3421-2021, https://doi.org/10.5194/bg-18-3421-2021, 2021
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We measured nutrients and the naturally occurring nitrogen (N) and oxygen (O) stable isotope ratios of nitrate discharged from a New England river over an annual cycle, to monitor N loading and identify dominant sources from the watershed. We uncovered a seasonality to loading and sources of N from the watershed. Seasonality in the nitrate isotope ratios also informed on N cycling, conforming to theoretical expectations of riverine nutrient cycling.
Zixun Chen, Xuejun Liu, Xiaoqing Cui, Yaowen Han, Guoan Wang, and Jiazhu Li
Biogeosciences, 18, 2859–2870, https://doi.org/10.5194/bg-18-2859-2021, https://doi.org/10.5194/bg-18-2859-2021, 2021
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δ13C in plants is a sensitive long-term indicator of physiological acclimatization. The present study suggests that precipitation change and increasing atmospheric N deposition have little impact on δ13C of H. ammodendron, a dominant plant in central Asian deserts, but affect its gas exchange. In addition, this study shows that δ13C of H. ammodendron could not indicate its water use efficiency (WUE), suggesting that whether δ13C of C4 plants indicates WUE is species-specific.
Petra Zahajská, Carolina Olid, Johanna Stadmark, Sherilyn C. Fritz, Sophie Opfergelt, and Daniel J. Conley
Biogeosciences, 18, 2325–2345, https://doi.org/10.5194/bg-18-2325-2021, https://doi.org/10.5194/bg-18-2325-2021, 2021
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The drivers of high accumulation of single-cell siliceous algae (diatoms) in a high-latitude lake have not been fully characterized before. We studied silicon cycling of the lake through water, radon, silicon, and stable silicon isotope balances. Results showed that groundwater brings 3 times more water and dissolved silica than the stream inlet. We demonstrate that groundwater discharge and low sediment deposition have driven the high diatom accumulation in the studied lake in the past century.
Yu-Te Hsieh, Walter Geibert, E. Malcolm S. Woodward, Neil J. Wyatt, Maeve C. Lohan, Eric P. Achterberg, and Gideon M. Henderson
Biogeosciences, 18, 1645–1671, https://doi.org/10.5194/bg-18-1645-2021, https://doi.org/10.5194/bg-18-1645-2021, 2021
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The South Atlantic near 40° S is one of the high-productivity and most dynamic nutrient regions in the oceans, but the sources and fluxes of trace elements (TEs) to this region remain unclear. This study investigates seawater Ra-228 and provides important constraints on ocean mixing and dissolved TE fluxes to this region. Vertical mixing is a more important source than aeolian or shelf inputs in this region, but particulate or winter deep-mixing inputs may be required to balance the TE budgets.
Zhongjie Yu and Emily M. Elliott
Biogeosciences, 18, 805–829, https://doi.org/10.5194/bg-18-805-2021, https://doi.org/10.5194/bg-18-805-2021, 2021
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In this study, we demonstrated distinct nitrogen isotope effects for nitric oxide (NO) production from major microbial and chemical NO sources in an agricultural soil. These results highlight characteristic bond-forming and breaking mechanisms associated with microbial and chemical NO production and implicate that simultaneous isotopic analyses of NO and nitrous oxide (N2O) can lead to unprecedented insights into the sources and processes controlling NO and N2O emissions from agricultural soils.
Daniel A. Frick, Rainer Remus, Michael Sommer, Jürgen Augustin, Danuta Kaczorek, and Friedhelm von Blanckenburg
Biogeosciences, 17, 6475–6490, https://doi.org/10.5194/bg-17-6475-2020, https://doi.org/10.5194/bg-17-6475-2020, 2020
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Silicon is taken up by some plants to increase structural stability and to develop stress resistance and is rejected by others. To explore the underlying mechanisms, we used the stable isotopes of silicon that shift in their relative abundance depending on the biochemical transformation involved. On species with a rejective (tomato, mustard) and active (wheat) uptake mechanism, grown in hydroculture, we found that the transport of silicic acid is controlled by the precipitation of biogenic opal.
Quentin Charbonnier, Julien Bouchez, Jérôme Gaillardet, and Éric Gayer
Biogeosciences, 17, 5989–6015, https://doi.org/10.5194/bg-17-5989-2020, https://doi.org/10.5194/bg-17-5989-2020, 2020
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The abundance and isotope composition of the trace metal barium (Ba) allows us to track and quantify nutrient cycling throughout the Amazon Basin. In particular, we show that the Ba biological fingerprint evolves from that of a strong net nutrient uptake in the mountainous area of the Andes towards efficient nutrient recycling on the plains of the Lower Amazon. Our study highlights the fact that the geochemical signature of rock-derived nutrients transported by the Amazon is scarred by life.
Ajinkya G. Deshpande, Thomas W. Boutton, Ayumi Hyodo, Charles W. Lafon, and Georgianne W. Moore
Biogeosciences, 17, 5639–5653, https://doi.org/10.5194/bg-17-5639-2020, https://doi.org/10.5194/bg-17-5639-2020, 2020
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Wetland forests in the southern USA are threatened by changing climate and human-induced pressures. We used tree ring widths and C isotopes as indicators of forest growth and physiological stress, respectively, and compared these to past climate data. We observed that vegetation growing in the drier patches is susceptible to stress, while vegetation growth and physiology in wetter patches is less sensitive to unfavorable environmental conditions, highlighting the importance of optimal wetness.
Dominika Lewicka-Szczebak, Maciej Piotr Lewicki, and Reinhard Well
Biogeosciences, 17, 5513–5537, https://doi.org/10.5194/bg-17-5513-2020, https://doi.org/10.5194/bg-17-5513-2020, 2020
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We present the first validation of N2O isotopic approaches for estimating N2O source pathways and N2O reduction. These approaches are widely used for tracing soil nitrogen cycling, but the results of these estimations are very uncertain. Here we report the results from parallel treatments allowing for precise validation of these approaches, and we propose the best strategies for results interpretation, including the new idea of an isotope model integrating three isotopic signatures of N2O.
Markus Raitzsch, Claire Rollion-Bard, Ingo Horn, Grit Steinhoefel, Albert Benthien, Klaus-Uwe Richter, Matthieu Buisson, Pascale Louvat, and Jelle Bijma
Biogeosciences, 17, 5365–5375, https://doi.org/10.5194/bg-17-5365-2020, https://doi.org/10.5194/bg-17-5365-2020, 2020
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The isotopic composition of boron in carbonate shells of marine unicellular organisms is a popular tool to estimate seawater pH. Usually, many shells need to be dissolved and measured for boron isotopes, but the information on their spatial distribution is lost. Here, we investigate two techniques that allow for measuring boron isotopes within single shells and show that they yield robust mean values but provide additional information on the heterogeneity within and between single shells.
Florian Einsiedl, Anja Wunderlich, Mathieu Sebilo, Ömer K. Coskun, William D. Orsi, and Bernhard Mayer
Biogeosciences, 17, 5149–5161, https://doi.org/10.5194/bg-17-5149-2020, https://doi.org/10.5194/bg-17-5149-2020, 2020
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Nitrate pollution of freshwaters and methane emissions into the atmosphere are crucial factors in deteriorating the quality of drinking water and in contributing to global climate change. Here, we report vertical concentration and stable isotope profiles of CH4, NO3-, NO2-, and NH4+ in the water column of Fohnsee (southern Bavaria, Germany) that may indicate linkages between nitrate-dependent anaerobic methane oxidation and the anaerobic oxidation of ammonium.
Ruifang C. Xie, Frédéric A. C. Le Moigne, Insa Rapp, Jan Lüdke, Beat Gasser, Marcus Dengler, Volker Liebetrau, and Eric P. Achterberg
Biogeosciences, 17, 4919–4936, https://doi.org/10.5194/bg-17-4919-2020, https://doi.org/10.5194/bg-17-4919-2020, 2020
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Thorium-234 (234Th) is widely used to study carbon fluxes from the surface ocean to depth. But few studies stress the relevance of oceanic advection and diffusion on the downward 234Th fluxes in nearshore environments. Our study in offshore Peru showed strong temporal variations in both the importance of physical processes on 234Th flux estimates and the oceanic residence time of 234Th, whereas salinity-derived seawater 238U activities accounted for up to 40 % errors in 234Th flux estimates.
Ralf A. Oeser and Friedhelm von Blanckenburg
Biogeosciences, 17, 4883–4917, https://doi.org/10.5194/bg-17-4883-2020, https://doi.org/10.5194/bg-17-4883-2020, 2020
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We present a novel strategy to decipher the relative impact of biogenic and abiotic drivers of weathering. We parameterized the nutrient fluxes in four ecosystems along a climate and vegetation gradient situated on the Chilean Coastal Cordillera. We investigated how nutrient demand by plants drives weathering. We found that the increase in biomass nutrient demand is accommodated by faster nutrient recycling rather than an increase in the weathering–release rates.
Tito Arosio, Malin M. Ziehmer, Kurt Nicolussi, Christian Schlüchter, and Markus Leuenberger
Biogeosciences, 17, 4871–4882, https://doi.org/10.5194/bg-17-4871-2020, https://doi.org/10.5194/bg-17-4871-2020, 2020
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Stable isotopes in tree-ring cellulose are tools for climatic reconstructions, but interpretation is challenging due to nonclimate trends. We analyzed the tree-age trends in tree-ring isotopes of deciduous larch and evergreen cembran pine. Samples covering the whole Holocene were collected at the tree line in the Alps. For cambial ages over 100 years, we prove the absence of age trends in δD, δ18O, and δ13C for both species. For lower cambial ages, trends differ for each isotope and species.
Yuyang He, Xiaobin Cao, and Huiming Bao
Biogeosciences, 17, 4785–4795, https://doi.org/10.5194/bg-17-4785-2020, https://doi.org/10.5194/bg-17-4785-2020, 2020
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Different carbon sites in a large organic molecule have different isotope compositions. Different carbon sites may not have the chance to exchange isotopes at all. The lack of appreciation of this notion might be blamed for an unsettled debate on the thermodynamic state of an organism. Here we demonstrate using minerals, N2O, and acetic acid that the dearth of exchange among different carbon sites renders them as independent as if they were different elements in organic molecules.
Felix M. Spielmann, Albin Hammerle, Florian Kitz, Katharina Gerdel, and Georg Wohlfahrt
Biogeosciences, 17, 4281–4295, https://doi.org/10.5194/bg-17-4281-2020, https://doi.org/10.5194/bg-17-4281-2020, 2020
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Carbonyl sulfide (COS) can be used as a proxy for plant photosynthesis on an ecosystem scale. However, the relationships between COS and CO2 fluxes and their dependence on daily to seasonal changes in environmental drivers are still poorly understood. We examined COS and CO2 ecosystem fluxes above an agriculturally used mountain grassland for 6 months. Harvesting of the grassland disturbed the otherwise stable COS-to-CO2 uptake ratio. We even found the canopy to release COS during those times.
Getachew Agmuas Adnew, Thijs L. Pons, Gerbrand Koren, Wouter Peters, and Thomas Röckmann
Biogeosciences, 17, 3903–3922, https://doi.org/10.5194/bg-17-3903-2020, https://doi.org/10.5194/bg-17-3903-2020, 2020
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We measured the effect of photosynthesis, the largest flux in the carbon cycle, on the triple oxygen isotope composition of atmospheric CO2 at the leaf level during gas exchange using three plant species. The main factors that limit the impact of land vegetation on the triple oxygen isotope composition of atmospheric CO2 are identified, characterized and discussed. The effect of photosynthesis on the isotopic composition of CO2 is commonly quantified as discrimination (ΔA).
Moritz Schroll, Frank Keppler, Markus Greule, Christian Eckhardt, Holger Zorn, and Katharina Lenhart
Biogeosciences, 17, 3891–3901, https://doi.org/10.5194/bg-17-3891-2020, https://doi.org/10.5194/bg-17-3891-2020, 2020
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Fungi have recently been identified to produce the greenhouse gas methane. Here, we investigated the stable carbon isotope values of methane produced by saprotrophic fungi. Our results show that stable isotope values of methane from fungi are dependent on the fungal species and the metabolized substrate. They cover a broad range and overlap with stable carbon isotope values of methane reported for methanogenic archaea, the thermogenic degradation of organic matter, and other eukaryotes.
Pranav Hirave, Guido L. B. Wiesenberg, Axel Birkholz, and Christine Alewell
Biogeosciences, 17, 2169–2180, https://doi.org/10.5194/bg-17-2169-2020, https://doi.org/10.5194/bg-17-2169-2020, 2020
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Sediment input into water bodies is a prominent threat to freshwater ecosystems. We tested the stability of tracers employed in freshwater sediment tracing based on compound-specific isotope analysis during early degradation in soil. While bulk δ13C values showed no stability, δ13C values of plant-derived fatty acids and n-alkanes were stably transferred to the soil without soil particle size dependency after an early degradation in organic horizons, thus indicating their suitability as tracers.
Caroline Thaler, Amandine Katz, Magali Bonifacie, Bénédicte Ménez, and Magali Ader
Biogeosciences, 17, 1731–1744, https://doi.org/10.5194/bg-17-1731-2020, https://doi.org/10.5194/bg-17-1731-2020, 2020
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Paleoenvironment reconstructions, retrieved from δ18O and Δ47 values measured in carbonate, are compromised when crystallization occurs in isotopic disequilibrium. We show that some paleoenvironmental information can still be retrieved from these paired disequilibrium Δ47 and δ18O values. The possibility of retrieving information on paleowaters, sediments' interstitial waters, or organisms' body water at the carbonate precipitation loci will help understand past Earth and life evolution.
Cited articles
Adams, D. D., Hurtgen, M. T., and Sageman, B. B.: Volcanic triggering of a biogeochemical cascade during Oceanic Anoxic Event 2, Nat. Geosci., 3, 201–204, 2010.
Algeo, T. J., Meyers, P. A., Robinson, R. S., Rowe, H., and Jiang, G. Q.: Icehouse-greenhouse variations in marine denitrification, Biogeosciences, 11, 1273–1295, https://doi.org/10.5194/bg-11-1273-2014, 2014.
Asmussen, G. and Strauch, G.: Sulfate reduction in a lake and the groundwater of a former lignite mining area studied by stable sulfur and carbon isotopes, Water Air Soil Poll., 108, 271–284, 1998.
Bates, A. L., Spiker, E. C., Orem, W. H., and Burnett, W.C.: Speciation and isotopic composition of sulfur in sediments from Jellyfish Lake, Palau, Chem. Geol., 106, 63–76, 1993.
Bates, A. L., Spiker, E. C., Hatcher, P. G., Stout, S. A., and Weintraub, V. C.: Sulfur geochemistry of organic-rich sediments from Mud Lake, Florida, USA, Chem. Geol., 121, 245–262, 1995.
Bates, A. L., Spiker, E. C., and Holmes, C. W.: Speciation and isotopic composition of sedimentary sulfur in the Everglades, Florida, USA, Chem. Geol., 146, 155–170, 1998.
Bekker, A., Holland, H. D., Wang, P. L., Rumble, D., III, Stein, H. J., Hannah, J. L., Coetzee, L. L., and Beukes, N. J.: Dating the rise of atmospheric oxygen, Nature, 427, 117–120, 2004.
Bergman, N. M., Lenton, T. M., and Watson, A. J.: COPSE: a new model of biogeochemical cycling over Phanerozoic time, Am. J. Sci., 397–437, 2004.
Berner, R. A.: A model for calcium, magnesium and sulfate in seawater over Phanerozoic time, Am. J. Sci., 304, 438–453, 2004.
Berner, Z. A., Puchelt, H., Nöltner, T., and Kramar, U.: Pyrite geochemistry in the Toarcian Posidonia Shale of southwest Germany: evidence for contrasting trace-element patterns of diagenetic and syngenetic pyrites, Sedimentology, 60, 548–573, 2013.
Berra, F., Jadoul, F., and Anelli, A.: Environmental control on the end of the Dolomia Principale/Hauptdolomit depositional system in the central Alps: coupling sea-level and climate changes, Palaeogeogr. Palaeoclimatol. Palaeoecol., 290, 138–150, 2010.
Böttcher, M. E., Voss, M., Schulz-Bull, D., Schneider, R., Leipe, T., and Knöller, K.: Environmental changes in the Pearl River Estuary (China) as reflected by light stable isotopes and organic contaminants, J. Mar. Syst., 82, S43–S53, 2010.
Bottrell, S. H. and Newton, R. J.: Reconstruction of changes in global sulfur cycling from marine sulfate isotopes, Earth-Sci. Rev., 75, 59–83, 2006.
Bradley, A. S., Leavitt, W. D., and Johnston, D. T.: Revisiting the dissimilatory sulfate reduction pathway, Geobiology, 9, 446–457, 2011.
Brennan, S. T., Lowenstein, T. K., and Horita, J.: Seawater chemistry and the advent of biocalcification, Geology, 32, 473–476, 2004.
Brüchert, V.: Physiological and ecological aspects of sulfur isotope fractionation during bacterial sulfate reduction, in: Sulfur Biogeochemistry – Past and Present, edited by: Amend, J. P., Edwards, K. J., and Lyons, T. W., Geol. Soc. Am. Spec. Pap., 379, 1–16, 2004.
Brüchert, V. and Pratt, L. M.: Contemporaneous early diagenetic formation of organic and inorganic sulfur in estuarine sediments from St. Andrew Bay, Florida, USA, Geochim. Cosmochim. Ac., 60, 2325–2332, 1996.
Brüchert, V. and Pratt, L. M.: Stable sulfur isotopic evidence fro historical changes of sulfur cycling in estuarine sediments from northern Florida, Aquat. Geochem., 5, 249–268, 1999.
Brüchert, V., Knoblauch, C., and Jørgensen, B. B.: Microbial controls on the stable sulfur isotope fractionation during bacterial sulfate reduction in Arctic sediments, Geochim. Cosmochim. Ac., 65, 753–766, 2001.
Brunner, B. and Bernasconi, S. M.: A revised isotope fractionation model for dissimilatory sulfate reduction in sulfate-reducing bacteria, Geochim. Cosmochim. Ac., 69, 4759–4771, 2005.
Canfield, D. E.: A new model for Proterozoic ocean chemistry, Nature, 396, 450–453, 1998.
Canfield, D. E.: Isotope fractionation by natural populations of sulfate-reducing bacteria, Geochim. Cosmochim. Ac., 65, 1117–1124, 2001.
Canfield, D. E.: The evolution of the Earth surface sulfur reservoir, Am. J. Sci., 304, 839–861, 2004.
Canfield, D. E. and Farquhar, J.: Animal evolution, bioturbation, and the sulfate concentration of the oceans, Proc. Nat. Acad. Sci. (USA), 106, 8123–8127, 2009.
Canfield, D. E. and Raiswell, R.: The evolution of the sulfur cycle, Am. J. Sci., 299, 697–723, 1999.
Canfield, D. E. and Thamdrup, B. T.: The production of 34S-depleted sulfide during disproportionation of elemental sulfur, Science, 266, 1973–1975, 1994.
Canfield, D. E., Raiswell, R., and Bottrell, S.: The reactivity of sedimentary iron minerals toward sulfide, Am. J. Sci., 292, 659–683, 1992.
Canfield, D. E., Olesen, C. A., and Cox, R. P.: Temperature and its control of isotope fractionation by a sulfate-reducing bacterium, Geochim. Cosmochim. Ac., 70, 548–561, 2006.
Canfield, D. E., Poulton, S. W., and Narbonne, G. M.: Late-Neoproterozoic deep-ocean oxygenation and the rise of animal life, Science, 315, 92–95, 2007.
Canfield, D. E., Farquhar, J., and Zerkle, A. L.: High isotope fractionations during sulfate reduction in a low-sulfate euxinic ocean analog, Geology, 38, 415–418, 2010.
Chambers, L. A., Trudinger, P. A., Smith, J. W., and Burns, M. S.: Fractionation of sulfur isotopes by continuous cultures of Desulfovibrio desulfuricans, Can. J. Microbiol., 21, 1602–1607, 1975.
Chanton, J. P. and Lewis, F. G.: Plankton and dissolved inorganic carbon isotopic composition in a river-dominated estuary: Apalachicola Bay, Florida, Estuaries, 22, 575–583, 1999.
Detmers, J., Brüchert, V., Habicht, K. S., and Kuever, J.: Diversity of sulfur isotope fractionations by sulfate-reducing prokaryotes, Appl. Environ. Microbiol., 67, 888–894, 2001.
DiMichele, W. A. and Hook, R. W.: Paleozoic terrestrial ecosystems, in: Terrestrial Ecosystems through Time, edited by: Behrensmeyer, A. K., Damuth, J. D., DiMichele, W. A., Potts, R., Sues, H.-D., and Wing, S. L., The University of Chicago Press, 205–325, 1992.
Doi, H., Kikuchi, E., Mizota, C., Satoh, N., Shikano, S., Yurlova, N., Yadrenkina, E., and Zuykova, E.: Carbon, nitrogen, and sulfur isotope changes and hydro-geological processes in a saline lake chain, Hydrobiologia, 529, 225–235, 2004.
Eckert, T., Brunner, B., Edwards, E. A., and Wortmann, U.G.: Microbially mediated re-oxidation of sulfide during dissimilatory sulfate reduction by Desulfobacter latus, Geochim. Cosmochim. Ac., 75, 3469–3485, 2011.
Farquhar, J., Peters, M., Johnston, D. T., Strauss, H., Masterson, A., Wiechert, U., and Kaufman, A. J.: Isotopic evidence for Mesoarchaean anoxia and changing atmospheric sulphur chemistry, Nature, 449, 706–710, 2007.
Fike, D. A. and Grotzinger, J. P.: A paired sulfate-pyrite δ34S approach to understanding the evolution of the Ediacaran-Cambrian sulfur cycle, Geochim. Cosmochim. Ac., 72, 2636–2648, 2008.
Fike, D. A., Grotzinger, J. P., Pratt, L. M., and Summons, R. E.: Oxidation of the Ediacaran Ocean, Nature, 444, 744–747, 2006.
Fry, B.: Sources of carbon and sulfur nutrition for consumers in three meromictic lakes of New York State, Limnol. Oceanogr., 31, 79–88, 1986a.
Fry, B.: Stable sulfur isotopic distributions and sulfate reduction in lake sediments of the Adirondacks Mountains, New York, Biogeochemistry, 2, 329–343, 1986b.
Fry, B., Giblin, A., and Dornblaser, M.: Stable sulfur isotopic compositions of chromium-reducible sulfur in lake sediments, in: Geochemical Transformation of Sedimentary Sulfur, edited by: Vairavamurthy, A. and Schoonens, M. A. A., American Chemical Society, ACS Symposium Series, 612, 397–410, 1995.
Fry, B., Jannasch, H. W., Molyneaux, S. J., Wirsen, C. O., Muramoto, J. A., and King, S.: Stable isotope studies of the carbon, nitrogen and sulfur cycles in the Black Sea and the Cariaco Trench, Deep-Sea Res., A38 (Suppl. 2), S1003–S1019, 1991.
Gellatly, A. M. and Lyons, T. W.: Trace sulfate in mid-Proterozoic carbonates and the sulfur isotope record of biospheric evolution, Geochim. Cosmochim. Ac., 69, 3813–3829, 2005.
Gill, B. C., Lyons, T. W., and Saltzman, M. R.: Parallel, high-resolution carbon and sulfur isotope records of the evolving Paleozoic marine sulfur reservoir, Palaeogeogr. Palaeoclimatol. Palaeoecol., 256, 156–173, 2007.
Gill, B. C., Lyons, T. W., Young, S. A., Kump, L. R., Knoll, A. H., and Saltzman, M. R.: Geochemical evidence for widespread euxinia in the Later Cambrian ocean, Nature, 469, 80–83, 2011a.
Gill, B. C., Lyons, T. W., and Jenkyns, H. C.: A global perturbation to the sulfur cycle during the Toarcian Oceanic Anoxic Event, Earth Planet. Sci. Lett., 312, 484–496, 2011b.
Gomes, M. L. and Hurtgen, M. T.: Sulfur isotope systematics of a euxinic, low-sulfate lake: evaluating the importance of the reservoir effect in modern and ancient oceans, Geology, 41, 663–666, 2013.
Gorlenko, V. M. and Chebotarev, E. N.: Microbiologic processes in meromictic Lake Sakovo, Microbiology, 50, 134–139, 1981.
Gorlenko, V. M., Vainstein, B., and Kachalkin, V. I.: Microbiological characteristic of Lake Mogilnoe, Arch. Hydrobiol., 81, 475–492, 1978.
Gradstein, F. M., Ogg, J. G., Schmitz, M. D., and Ogg, G. M.: The Geologic Time Scale 2012, Elsevier, Amsterdam, 2, 1176 pp., 2012.
Habicht, K. S. and Canfield, D. E.: Sulphur isotope fractionation in modern microbial mats and the evolution of the sulphur cycle, Nature, 382, 342–343, 1996.
Habicht, K. S. and Canfield, D. E.: Sulfur isotope fractionation during bacterial sulfate reduction in organic-rich sediments, Geochim. Cosmochim. Ac., 61, 5351–5361, 1997.
Habicht, K. S. and Canfield, D. E.: Isotope fractionation by sulfate-reducing natural populations and the isotopic composition of sulfide in marine sediments, Geology, 29, 555–558, 2001.
Habicht, K. S., Gade, M., Thamdrup, B., Berg, P., and Canfield, D. E.: Calibration of sulfate levels in the Archean ocean, Science, 298, 2372–2374, 2002.
Halevy, I., Peters, S. E., and Fischer, W. W.: Sulfate burial constraints on the Phanerozoic sulfur cycle, Science, 337, 331–334, 2012.
Halverson, G. P. and Hurtgen, M. T.: Ediacaran growth of the marine sulfate reservoir, Earth Planet. Sci. Lett., 263, 32–44, 2007.
Halverson, G. P., Hoffman, P. F., Schrag, D. P., Maloof, A. C., and Rice, A. H. N.: Toward a Neoproterozoic composite carbon-isotope record, Geol. Soc. Am. Bull., 117, 1181–1207, 2005.
Hartmann, M. and Nielsen, H.: δ34S-Werte in rezenten Meeressedimenten und ihre Deutung am Beispiel einiger Sedimentprofile aus der westlichen Ostsee, Geol. Rundsch., 58, 621–655, 1968.
Holland, H. D.: Volcanic gases, black smokers, and the Great Oxidation Event, Geochim. Cosmochim. Ac., 66, 3811–3826, 2002.
Holser, W., Maynard, J. B., and Cruikshank, K.: Modelling the natural cycle of sulphur through Phanerozoic time, in: Evolution of the Global Biogeochemical Sulfur Cycle, edited by: Brimblecombe, P. and Lein, A. Y. Wiley, New York, 21–56, 1989.
Horita, J., Zimmermann, H., and Holland, H. D.: Chemical evolution of seawater during the Phanerozoic: Implications from the record of marine evaporites, Geochim. Cosmochim. Ac., 66, 3733–3756, 2002.
Hurtgen, M. T., Arthur, M. A., Suits, N. S., and Kaufman, A. J.: The sulfur isotopic composition of Neoproterozoic seawater sulfate: implications for a snowball Earth?, Earth Planet. Sci. Lett., 203, 413–429, 2002.
Hurtgen, M. T., Arthur, M. A., and Halverson, G. P.: Neoproterozoic sulfur isotopes, the evolution of microbial sulfur species, and the burial efficiency of sulfide as sedimentary pyrite, Geology, 33, 41–44, 2005.
Hurtgen, M. T., Halverson, G. P., Arthur, M. A., and Hoffman, P. F.: Sulfur cycling in the aftermath of a 635 Ma snowball glaciation: Evidence for a syn-glacial sulfidic deep ocean, Earth Planet. Sci. Lett., 245, 551–570, 2006.
Ivanov, M. V., Rusanov, I. I., Pimenov, N. V., Bairamov, I. T., Yusupov, S. K., Savvichev, A. S., Lein, A. Y., and Sapozhnikov, V. V.: Microbial processes of the carbon and sulfur cycles in Lake Mogil'noe, Microbiology, 70, 583–593, 2001.
Johnston, D. T.: Multiple sulfur isotopes and the evolution of Earth's surface sulfur cycle, Earth-Sci. Rev., 106, 161–183, 2011.
Johnston, D. T., Wing, B. A., Farquhar, J., Kaufman, A. J., Strauss, H., Lyons, T. W., Kah, L. C., and Canfield, D. E.: Active microbial sulfur disproportionation in the Mesoproterozoic, Science, 310, 1477–1479, 2005.
Johnston, D. T., Farquhar, J., Habicht, K. S., and Canfield, D. E.: Sulphur isotopes and the search for life: strategies for identifying sulphur metabolisms in the rock record and beyond, Geobiology, 6, 425–435, 2008.
Jones, B. A., Facchetti, A., Wasielewski, M. R., and Marks, T. J.: Theory of oxidation-reduction reactions involving electron transfer, 5. Comparison and properties of electrochemical and chemical rate constants, J. Am. Chem. Soc., 129, 15259–15278, 2007.
Jørgensen, B. B.: Mineralization of organic matter in the sea bed – the role of sulphate reduction, Nature, 296, 643–645, 1982.
Jørgensen, B. B. and Cohen, Y.: Solar Lake (Sinai), 5. The sulfur cycle of the benthic cyanobacterial mats, Limnol. Oceanogr., 22, 657–666, 1977.
Kah, L. C., Lyons, T. W., and Frank, T. D.: Low marine sulphate and protracted oxygenation of the Proterozoic biosphere, Nature, 431, 834–838, 2004.
Kampschulte, A. and Strauss, H.: The sulfur isotopic evolution of Phanerozoic seawater based on the analysis of structurally substituted sulfate in carbonates, Chem. Geol., 204, 255–286, 2004.
Kamyshny, A., Jr., Zerkle, A. L., Mansaray, Z. F., Ciglenečki, I., Bura-Nakić, E., Farquhar, J., and Ferdelman, T. G.: Biogeochemical sulfur cycling in the water column of a shallow stratified sea-water lake: speciation and quadruple sulfur isotope composition, Mar. Geol., 127, 144–154, 2011.
Kaplan, I. R. and Rittenberg, S. C.: Microbiological fractionation of sulphur isotopes, J. Gen. Microbiol., 34, 195–212, 1964.
Kaplan, I. R.: Stable isotopes of sulfur, nitrogen and deuterium in Recent marine environments, in: Stable Isotopes in Sedimentary Geology, edited by: Arthur, M. A., Anderson, T. F., Kaplan, I. R., Veizer, J. and Land, L. S., Society for Sedimentary Geology, Tulsa, Oklahoma, 21–108, 1983.
Kaplan, I. R., Emery, K. O., and Rittenberg, S. C.: The distribution and isotopic abundance of sulphur in recent marine sediments off southern California, Geochim. Cosmochim. Ac., 27, 297–331, 1963.
Karcz, P.: Relationships between development of organic-rich shallow shelf facies and variation in isotopic composition of pyrite (Middle Triassic, Spitsbergen), Polish Polar Res., 31, 239–254, 2010.
Karube, Z., Okada, N., and Tayasu, I.: Sulfur stable isotope signature identifies the source of reduced sulfur in benthic communities in macrophyte zones of Lake Biwa, Japan, Limnology, 13, 269–280, 2012.
Kemp, A. L. W. and Thode, H. G.: The mechanism of the bacterial reduction of sulphate and sulphite from isotope fractionation studies, Geochim. Cosmochim. Ac., 32, 71–91, 1968.
Kleikemper, J., Schroth, M. H., Bernasconi, S. M., Brunner, B., and Zeyer, J.: Sulfur isotope fractionation during growth of sulfate-reducing bacteria on various carbon sources, Geochim. Cosmochim. Ac., 68, 4891–4904, 2004.
Ku, T. C. W., Walter, L. M., Coleman, M. L., Blake, R. E., and Martini, A. M.: Coupling between sulfur recycling and syndepositional carbonate dissolution: evidence from oxygen and sulfur isotope composition of pore water sulfate, South Florida Platform, USA, Geochim. Cosmochim. Ac., 63, 2529–2546, 1999.
Kump, L. R. and Arthur, M. A.: Interpreting carbon-isotope excursions: carbonates and organic matter, Chem. Geol., 161, 181–198, 1999.
Kurtz, A. C., Kump, L. R., Arthur, M. A., Zachos, J. C., and Paytan, A.: Early Cenozoic decoupling of the global carbon and sulfur cycles, Paleoceanography, 18, PA000908, https://doi.org/10.1029/2003PA000908, 2003.
Leavitt, W. D., Halevy, I., Bradley, A. S., and Johnston, D. T.: Influence of sulfate reduction rates on the Phanerozoic sulfur isotope record, Proc. Nat. Acad. Sci. (USA), 110, 11244–11249, 2013.
Lee, Y. J. and Lwiza, K.: Interannual variability of temperature and salinity in shallow water: Long Island Sound, New York, J. Geophys. Res., 110, C09022, https://doi.org/10.1029/2004JC002507, 2005.
Lein, A. Y.: Biogeochemistry of the anaerobic diagenesis of Recent Baltic Sea sediments, Environ. Biogeochem., 35, 441–461, 1983.
Li, C., Love, G. D., Lyons, T. W., Fike, D. A., Sessions, A. L., and Chu, X.: A stratified redox model for the Ediacaran ocean, Science, 328, 80–83, 2010.
Li, X., Gilhooly, W. P., III, Zerkle, A. L., Lyons, T. W., Farquhar, J., Werne, J. P., Varela, R., and Scranton, M. I.: Stable sulfur isotopes in the water column of the Cariaco Basin, Geochim. Cosmochim. Ac., 74, 6764–6778, 2010.
Llobet-Brossa, E., Rabus, R., Böttcher, M. E., Könneke, M., Finke, N., Schramm, A., Meyer, R. L., Grötzschel, S., Rosselló-Mora, R., and Amann, R.: Community structure and activity of sulfate-reducing bacteria in an intertidal surface sediment: a multi-method approach, Aquat. Microbial Ecol., 29, 211–226, 2002.
Lojen, S., Ogrinc, N., Dolenec, T., Vokal, B., Szaran, J., Mihelčić, G., and Branica, M.: Nutrient fluxes and sulfur cycling in the organic-rich sediment of Makirina Bay (Central Dalmatia, Croatia), Sci. Total Environ., 327, 265–284, 2004.
Lowenstein, T. K., Hardie, L. A., Timofeeff, M. N., and Demicco, R. V.: Secular variation in seawater chemistry and the origin of calcium chloride basinal brines, Geology, 31, 857–860, 2003.
Lowenstein, T. K., Timofeeff, M. N., Kovalevych, V. M., and Horita, J.: The major-ion composition of Permian seawater, Geochim. Cosmochim. Ac., 69, 1701–1719, 2005.
Loyd, S. J., Marenco, P. J., Hagadorn, J. W., Lyons, T. W., Kaufman, A. J., Sour-Tovar, F., and Corsetti, F. A.: Sustained low marine sulfate concentrations from the Neoproterozoic to the Cambrian: insights from carbonates of northwestern Mexico and eastern California, Earth Planet. Sci. Lett., 339/340, 79–94, 2012.
Loyd, S. J., Marenco, P. J., Hagadorn, J. W., Lyons, T. W., Kaufman, A. J., Sour-Tovar, F., and Corsetti, F. A.: Local δ34S variability in 580 Ma carbonates of northwestern Mexico and the Neoproterozoic marine sulfate reservoir, Precambr. Res., 224, 551–569, 2013.
Luo, G. M., Kump, L. R., Wang, Y., Tong, J., Arthur, M. A., Yang, H., Huang, J., Yin, H., and Xie, S.: Isotopic evidence for an anomalously low oceanic sulphate concentration following end-Permian mass extinction, Earth Planet. Sci. Lett., 300, 101–111, 2010.
Luo, G. M., Ono, S., Algeo, T. J., Huang, J., Li, C., Zhou, L., Liu, J., and Xie, S.C.: Return of Archean low oceanic sulfate levels during the earliest Mesoproterozoic, Precambr. Res., 258, 36–47, 2015.
Lyons, T. W.: Sulfur isotopic trends and pathways of iron sulfide formation in upper Holocene sediments of the anoxic Black Sea, Geochim. Cosmochim. Ac., 61, 3367–3382, 1997.
Lyons, T. W. and Gill, B. C.: Ancient sulfur cycling and oxygenation of the early biosphere, Elements, 6, 93–99, 2010.
Lyons, T. W. and Severmann, S.: A critical look at iron paleoredox proxies: New insights from modern euxinic marine basins, Geochim. Cosmochim. Ac., 70, 5698–5722, 2006.
Mandernack, K. W., Lynch, L., Krouse, H. R., and Morgan, M. D.: Sulfur cycling in wetland peat of the New Jersey Pinelands and its effect on stream water chemistry, Geochim. Cosmochim. Ac., 64, 3949–3964, 2000.
Mandernack, K. W., Krouse, H. R., and Skei, J. M.: A stable sulfur and oxygen isotopic investigation of sulfur cycling in an anoxic marine basin, Framvaren Fjord, Norway, Chem. Geol., 195, 181–200, 2003.
Mayer, B. and Schwark, L.: A 15,000-year stable isotope record from sediments of Lake Steisslingen, southwest Germany, Chem. Geol., 161, 315–337, 1999.
McArthur, J. M., Donovan, D. T., Thirlwall, M. F., Fouke, B. W., and Mattey, D.: Strontium isotope profile of the early Toarcian (Jurassic) oceanic anoxic event, the duration of ammonite biozones, and belmenite palaeotemperatures, Earth Planet. Sci. Lett., 179, 269–285, 2000.
McFadden, K. A., Huang, J., Chu, X., Jiang, G., Kaufman, A. J., Zhou, C., Yuan, X., and Xiao, S.: Pulsed oxidation and biological evolution in the Ediacaran Doushantuo Formation, Proc. Nat. Acad. Sci. (USA), 105, 3197–3202, 2008.
Millero, F. J.: Chemical Oceanography, 3rd Edn., CRC Press, Boca Raton, Florida, 2005.
Montañez, I. P., Norris, R. D., Algeo, T. J., Chandler, M. A., Johnson, K. R., Kennedy, M. J., Kent, D. V., Kiehl, J. T., Kump, L. R., Ravelo, A. C., and Turekian, K. K.: Understanding Earth's Deep Past: Lessons for Our Climate Future, National Academy of Sciences Press, Washington, DC, 2011.
Nakagawa, M., Ueno, Y., Hattori, S., Umemura, M., Yagi, A., Takai, K., Koba, K., Sasaki, Y., Makabe, A., and Yoshida, N.: Seasonal change in microbial sulfur cycling in monomictic Lake Fukami-ike, Japan, Limnol. Oceanogr., 57, 974–988, 2012.
Nakai, N. and Jensen, M. L.: The kinetic isotope effect in the bacterial reduction and oxidation of sulfur, Geochim. Cosmochim. Ac., 28, 1893–1912, 1964.
Nakai, N., Wada, H., Kiyosu, Y., and Takimoto, M.: Stable isotope studies on the origin and geological history of water and salts in the Lake Vanda area, Antarctica, Geochem. J., 9, 7–24, 1975.
Nakano, T., Tayasu, I., Yamada, Y., Hosono, T., Igeta, A., Hyodo, F., Ando, A., Saitoh, Y., Tanaka, T., Wada, E., and Yachi, S.: Effect of agriculture on water quality of Lake Biwa tributaries, Japan, Sci. Total Environ., 389, 132–148, 2008.
Newton, R. J., Reeves, E. P., Kafousia, N., Wignall, P. B., Bottrell, S. H., and Sha, J.-G.: Low marine sulfate concentrations and the isolation of the European epicontinental sea during the Early Jurassic, Geology, 39, 7–10, 2011.
Nriagu, J. O. and Coker, R. D.: Emission of sulfur from Lake Ontario sediments, Limnol. Oceanogr., 21, 485–489, 1976.
Nriagu, J. O. and Harvey, H. H.: Isotopic variation as an index of sulfur poiiution in lakes around Sudbury, Ontario, Nature, 273, 223–224, 1978.
Nriagu, J. O. and Soon, Y. K.: Distribution and isotopic composition of sulfur in lake sediments of northern Ontario, Geochim. Cosmochim. Ac., 49, 823–834, 1985.
Oren, A.: Bioenergetic aspects of halophilism, Microbiol. Mol. Biol. Rev., 63, 334–348, 1999.
Overmann, J., Beatty, J. T., Krouse, H. R., and Hall, K. J.: The sulfur cycle in the chemocline of a meromictic salt lake, Limnol. Oceanogr., 41, 147–156, 1996.
Owens, J. D., Gill, B. C., Jenkyns, H. C., Bates, S. M., Severmann, S., Kuypers, M. M. M., Woodfine, R. G., and Lyons, T. W.: Sulfur isotopes track the global extent and dynamics of euxinia during Cretaceous Oceanic Anoxic Event 2, Proc. Nat. Acad. Sci. (USA), 110, 18407–18412, 2013.
Paytan, A., Kastner, M., Campbell, D., and Thiemens, M. H.: Sulfur isotopic composition of Cenozoic seawater sulfate, Science, 282, 1459–1462, 1998.
Paytan, A., Kastner, M., Campbell, D., and Thiemens, M. H.: Seawater sulfur isotope fluctuations in the Cretaceous, Science, 304, 1663–1665, 2004.
Peterson, B. J. and Howarth, R. W.: Sulfur, carbon, and nitrogen isotopes used to trace organic matter flow in the salt-march estuaries of Sapelo Island, Georgia, Limnol. Oceanogr., 32, 1195–1213, 1987.
Planavsky, N. J., Bekker, A., Hofmann, A., Owens, J. D., and Lyons, T. W.: Sulfur record of rising and falling marine oxygen and sulfate levels during the Lomagundi event, Proc. Nat. Acad. Sci. (USA), 109, 18300–18305, 2012.
Price, F. T. and Casagrande, D. J.: Sulfur distribution and isotopic composition in peats from the Okefenokee Swamp, Georgia and the Everglades, Florida, Internat. J. Coal Geol., 17, 1–20, 1991.
Purdy, K., Hawes, I., Bryant, C. L., Fallick, A. E., and Nedwell, D. B.: Estimates of sulphate reduction rates in Lake Vanda, Antarctica support the proposed recent history of the lake, Antarct. Sci., 13, 393–399, 2001.
Rees, C. E.: A steady-state model for sulphur isotope fractionation in bacterial reduction processes, Geochim. Cosmochim. Ac., 27, 1141–1162, 1973.
Rickard, D. T.: Kinetics and mechanism of pyrite formation at low temperatures, Am. J. Sci., 275, 636–652, 1975.
Ries, J. B., Fike, D. A., Pratt, L. M., Lyons, T. W., and Grotzinger, J. P.: Superheavy pyrite (δ34Spyr > δ34SCAS) in the terminal Proterozoic Nama Group, southern Namibia: a consequence of low seawater sulfate at the dawn of life, Geology, 37, 743–746, 2009.
Röhl, H.-J., Schmid-Röhl, A., Oschmann, W., Frimmel, A., and Schwark, L.: The Posidonia Shale (Lower Toarcian) of SW-Germany: an oxygen-depleted ecosystem controlled by sea level and palaeoclimate, Palaeogeogr. Palaeoclimatol. Palaeoecol., 165, 27–52, 2001.
Rudnicki, M. D., Elderfield, H., and Spiro, B.: Fractionation of sulfur isotopes during bacterial sulfate reduction in deep ocean sediments at elevated temperatures, Geochim. Cosmochim. Ac., 65, 777–789, 2001.
Scheiderich, K., Zerkle, A. L., Helz, G. R., Farquhar, J., and Walker, R. J.: Molybdenum isotope, multiple sulfur isotope, and redox-sensitive element behavior in early Pleistocene Mediterranean sapropels, Chem. Geol., 279, 134–144, 2010.
Shen, Y. A., Buick, R., and Canfield, D. E.: Isotopic evidence for microbial sulphate reduction in the early Archaean era, Nature, 410, 77–81, 2001.
Sim, M. S., Bosak, T., and Ono, S. H.: Large sulfur isotope fractionation does not require disproportionation, Science, 333, 74–78, 2011a.
Sim, M. S., Ono, S. H., Donovan, K., Templer, S. P., and Bosak, T.: Effect of electron donors on the fractionation of sulfur isotopes by a marine Desulfovibrio sp., Geochim. Cosmochim. Ac., 75, 4244–4259, 2011b.
Song, H. Y., Tong, J., Algeo, T. J., Song, H. J., Qiu, H., Zhu, Y., Tian, L., Bates, S., Lyons, T. W., Luo, G. M., and Kump, L. R.: Early Triassic seawater sulfate drawdown, Geochim. Cosmochim. Ac., 128, 95–113, 2014.
Sørensen, K. B. and Canfield, D. E.: Annual fluctuations in sulfur isotope fractionation in the water column of a euxinic marine basin, Geochim. Cosmochim. Ac., 68, 503–515, 2004.
Stam, M. C., Mason, P. R. D., Pallud, C., and Van Cappellen, P.: Sulfate reducing activity and sulfur isotope fractionation by natural microbial communities in sediments of a hypersaline soda lake (Mono Lake, California), Chem. Geol., 278, 23–30, 2010.
Sternbeck, J. and Sohlenius, G.: Authigenic sulfide and carbonate mineral formation in Holocene sediments of the Baltic Sea, Chem. Geol., 135, 55–73, 1997.
Strauss, H.: The isotopic composition of sedimentary sulfur through time. Palaeogeogr, Palaeoclimatol. Palaeoecol., 132, 97–118, 1997.
Strauss, H.: Geological evolution from isotope proxy signals-sulfur, Chem. Geol., 161, 89–101, 1999.
Strauss, H.: Sulfur isotopes and the early Archaean sulphur cycle, Precambr. Res., 126, 349–361, 2003.
Stribling, J. M., Cornwell, J. C., and Currin, C.: Variability of stable sulfur isotopic ratios in Spartina alterniflora, Mar. Ecol. Progr. Ser., 166, 73–81, 1998.
Suits, N. S. and Wilkin, R. T.: Pyrite formation in the water column and sediments of a meromictic lake, Geology, 26, 1099–1102, 1998.
Sweeney, R. E. and Kaplan, I. R.: Stable isotope composition of dissolved sulfate and hydrogen sulfide in the Black Sea, Mar. Chem., 9, 145–152, 1980.
Valentine, D. L.: Biogeochemistry and microbial ecology of methane oxidation in anoxic environments: a review, Antonie van Leeuwenhoek, 81, 271–282, 2002.
Wacey, D., McLoughlin, N., Whitehouse, M. J., and Kilburn, M. R.: Two coexisting sulfur metabolisms in a ca. 3400 Ma sandstone, Geology, 38, 1115–1118, 2010.
Werne, J. P., Hollander, D. J., Behrens, A., Schaeffer, P., Albrecht, P., and Damsté, J. S. S.: Timing of early diagenetic sulfurization of organic matter: A precursor-product relationship in Holocene sediments of the anoxic Cariaco Basin, Venezuela, Geochim. Cosmochim. Ac., 64, 1741–1751, 2000.
Werne, J. P., Lyons, T. W., Hollander, D. J., Formolo, M. J., and Damsté, J. S. S.: Reduced sulfur in euxinic sediments of the Cariaco Basin: sulfur isotope constraints on organic sulfur formation, Chem. Geol., 195, 159–179, 2003.
Werne, J. P., Lyons, T. W., Hollander, D. J., Schouten, S., Hopmans, E. C., and Damsté, J. S. S.: Investigating pathways of diagenetic organic matter sulfurization using compound-specific sulfur isotope analysis, Geochim. Cosmochim. Ac., 72, 3489–3502, 2008.
Wijsman, J. W. M., Middelburg, J. J., Herman, P. M. J., Böttcher, M. E., and Heip, C. H. R.: Sulfur and iron speciation in surface sediments along the northwestern margin of the Black Sea, Mar. Chem., 74, 261–278, 2001.
Wilkin, R. T., Barnes, H. L., and Brantley, S.L.: The size distribution of framboidal pyrite in marine sediments: an indicator of redox conditions, Geochim. Cosmochim. Ac., 60, 3897–3912, 1996.
Wortmann, U. G. and Chernyavsky, B. M.: Effect of evaporite deposition on Early Cretaceous carbon and sulphur cycling, Nature, 446, 654–656, 2007.
Wortmann, U. G. and Paytan, A.: Rapid variability of seawater chemistry over the past 130 million years, Science, 337, 334–336, 2012.
Wortmann, U. G., Bernasconi, S. M., and Böttcher, M. E.: Hypersulfidic deep biosphere indicates extreme sulfur isotope fractionation during single-step microbial sulfate reduction, Geology, 29, 647–650, 2001.
Wotte, T., Strauss, H., Fugmann, A., and Garbe-Schönberg, D.: Paired δ34S data from carbonate-associated sulfate and chromium-reducible sulfur across the traditional Lower-Middle Cambrian boundary of W-Gondwana, Geochim. Cosmochim. Ac., 85, 228–253, 2012.
Wu, N., Farquhar, J., Strauss, H., Kim, S.-T., and Canfield, D. E.: Evaluating the S-isotope fractionation associated with Phanerozoic pyrite burial, Geochim. Cosmochim. Ac., 74, 2053–2071, 2010.
Zaback, D. A. and Pratt, L. M.: Isotopic composition and speciation of sulfur in the Miocene Monterey Formation: Reevaluation of sulfur reactions during early diagenesis in marine environments, Geochim. Cosmochim. Ac., 56, 763–774, 1992.
Zerkle, A. L., Kamyshny, A., Jr., Kump, L. R., Farquhar, J., Oduro, H., and Arthur, M. A.: Sulfur cycling in a stratified euxinic lake with moderately high sulfate: Constraints from quadrupole S isotopes, Geochim. Cosmochim. Ac., 74, 4953–4970, 2010.
Zhang, S., Jiang, G., Zhang, J., Song, B., Kennedy, M. J., and Christie-Blick, N.: U-Pb sensitive high-resolution ion microprobe ages from the Doushantuo Formation in south China: constraints on late Neoproterozoic glaciations, Geology, 33, 473–476, 2005.
Zhang, S., Jiang, G., and Han, Y.: The age of the Nantuo Formation and Nantuo glaciation in South China, Terra Nova, 20, 289–294, 2008.
Short summary
Seawater sulfate concentrations are closely related to the oxygenation history of Earth's surface environment. We develop two approaches for quantification of ancient seawater sulfate concentrations based on the sulfur isotopic composition of pyrite and carbonate-associated sulfur (CAS). Our analysis indicates low seawater sulfate (<5mM) at 635 million years ago, rising in a stepwise manner to near-modern levels (~20-30mM) by about 250 million years ago.
Seawater sulfate concentrations are closely related to the oxygenation history of Earth's...
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