Articles | Volume 17, issue 13
https://doi.org/10.5194/bg-17-3545-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-17-3545-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
09 Jul 2020
Research article |
| 09 Jul 2020
Better molecular preservation of organic matter in an oxic than in a sulfidic depositional environment: evidence from Thalassiphora pelagica (Dinoflagellata, Eocene) cysts
Gerard J. M. Versteegh
CORRESPONDING AUTHOR
Heisenberg Group Marine Kerogen, Marum Research Faculty,
Universität Bremen, 28359 Bremen, Germany
Micropaleontology Group, Division Marine Palynology, Marum Research
Faculty, Universität Bremen, 28359 Bremen, Germany
Alexander J. P. Houben
Geological Survey of the Netherlands, TNO, 3548 CB Utrecht, the
Netherlands
Marine Palynology and Palaeoceanograhy, Faculty of Geosciences,
Utrecht University, Budapestlaan 4, 3584 CD Utrecht, the Netherlands
Karin A. F. Zonneveld
Micropaleontology Group, Division Marine Palynology, Marum Research
Faculty, Universität Bremen, 28359 Bremen, Germany
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Biogeosciences, 19, 1587–1610, https://doi.org/10.5194/bg-19-1587-2022, https://doi.org/10.5194/bg-19-1587-2022, 2022
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A 5-year record of long-chain mid-chain diol export flux and composition is presented with a 1- to 3-week resolution sediment trap CBeu (in the NW African upwelling). All environmental parameters as well as the diol composition are dominated by the seasonal cycle, albeit with different phase relations for temperature and upwelling. Most diol-based proxies are dominated by upwelling. The long-chain diol index reflects temperatures of the oligotrophic summer sea surface.
Gerard J. M. Versteegh, Andrea Koschinsky, Thomas Kuhn, Inken Preuss, and Sabine Kasten
Biogeosciences, 18, 4965–4984, https://doi.org/10.5194/bg-18-4965-2021, https://doi.org/10.5194/bg-18-4965-2021, 2021
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Oxygen penetrates sediments not only from the ocean bottom waters but also from the basement. The impact of the latter is poorly understood. We show that this basement oxygen has a clear impact on the nitrogen cycle, the redox state, and the distribution of manganese, nickel cobalt and organic matter in the sediments. This is important for (1) global biogeochemical cycles, (2) understanding sedimentary life and (3) the interpretation of the sediment record to reconstruct the past.
Lidia A. Kuhn, Karin A. F. Zonneveld, Paulo A. Souza, and Rodrigo R. Cancelli
Biogeosciences, 20, 1843–1861, https://doi.org/10.5194/bg-20-1843-2023, https://doi.org/10.5194/bg-20-1843-2023, 2023
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This study investigated changes in coastal ecosystems that reflect environmental changes over the past 6500 years on Brazil's largest oceanic island. This study was motivated by the need to understand the natural evolution of coastal areas to predict future changes. The results highlight the sensitivity of this ecosystem to changes caused by relative sea level variations. As such, it contributes to the debate about potential effects of current climate change induced by global sea level changes.
Eduardo Queiroz Alves, Wanyee Wong, Jens Hefter, Hendrik Grotheer, Tommaso Tesi, Torben Gentz, Karin Zonneveld, and Gesine Mollenhauer
Clim. Past Discuss., https://doi.org/10.5194/cp-2023-7, https://doi.org/10.5194/cp-2023-7, 2023
Preprint under review for CP
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Our study reveals a previously unknown peat source for the massive influx of terrestrial organic matter that was exported from the European continent to the ocean during the last deglaciation. Our findings shed light on ancient terrestrial organic carbon mobilization, providing insights that are crucial for refining climate models.
Gerard J. M. Versteegh, Karin A. F. Zonneveld, Jens Hefter, Oscar E. Romero, Gerhard Fischer, and Gesine Mollenhauer
Biogeosciences, 19, 1587–1610, https://doi.org/10.5194/bg-19-1587-2022, https://doi.org/10.5194/bg-19-1587-2022, 2022
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A 5-year record of long-chain mid-chain diol export flux and composition is presented with a 1- to 3-week resolution sediment trap CBeu (in the NW African upwelling). All environmental parameters as well as the diol composition are dominated by the seasonal cycle, albeit with different phase relations for temperature and upwelling. Most diol-based proxies are dominated by upwelling. The long-chain diol index reflects temperatures of the oligotrophic summer sea surface.
Gerard J. M. Versteegh, Andrea Koschinsky, Thomas Kuhn, Inken Preuss, and Sabine Kasten
Biogeosciences, 18, 4965–4984, https://doi.org/10.5194/bg-18-4965-2021, https://doi.org/10.5194/bg-18-4965-2021, 2021
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Oxygen penetrates sediments not only from the ocean bottom waters but also from the basement. The impact of the latter is poorly understood. We show that this basement oxygen has a clear impact on the nitrogen cycle, the redox state, and the distribution of manganese, nickel cobalt and organic matter in the sediments. This is important for (1) global biogeochemical cycles, (2) understanding sedimentary life and (3) the interpretation of the sediment record to reconstruct the past.
Oscar E. Romero, Karl-Heinz Baumann, Karin A. F. Zonneveld, Barbara Donner, Jens Hefter, Bambaye Hamady, Vera Pospelova, and Gerhard Fischer
Biogeosciences, 17, 187–214, https://doi.org/10.5194/bg-17-187-2020, https://doi.org/10.5194/bg-17-187-2020, 2020
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Monitoring of the multiannual evolution of populations representing different trophic levels allows for obtaining insights into the impact of climate variability in marine coastal upwelling ecosystems. By using a multiyear, continuous (1,900 d) sediment trap record, we assess the dynamics and fluxes of calcareous, organic and siliceous microorganisms off Mauritania (NW Africa). The experiment allowed for the recognition of a general sequence of seasonal variations of the main populations.
Julian D. Hartman, Francesca Sangiorgi, Ariadna Salabarnada, Francien Peterse, Alexander J. P. Houben, Stefan Schouten, Henk Brinkhuis, Carlota Escutia, and Peter K. Bijl
Clim. Past, 14, 1275–1297, https://doi.org/10.5194/cp-14-1275-2018, https://doi.org/10.5194/cp-14-1275-2018, 2018
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We reconstructed sea surface temperatures for the Oligocene and Miocene periods (34–11 Ma) based on archaeal lipids from a site close to the Wilkes Land coast, Antarctica. Our record suggests generally warm to temperate surface waters: on average 17 °C. Based on the lithology, glacial and interglacial temperatures could be distinguished, showing an average 3 °C offset. The long-term temperature trend resembles the benthic δ18O stack, which may have implications for ice volume reconstructions.
Peter K. Bijl, Alexander J. P. Houben, Julian D. Hartman, Jörg Pross, Ariadna Salabarnada, Carlota Escutia, and Francesca Sangiorgi
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We document Southern Ocean surface ocean conditions and changes therein during the Oligocene and Miocene (34–10 Myr ago). We infer profound long-term and short-term changes in ice-proximal oceanographic conditions: sea surface temperature, nutrient conditions and sea ice. Our results point to warm-temperate, oligotrophic, ice-proximal oceanographic conditions. These distinct oceanographic conditions may explain the high amplitude in inferred Oligocene–Miocene Antarctic ice volume changes.
Peter K. Bijl, Alexander J. P. Houben, Anja Bruls, Jörg Pross, and Francesca Sangiorgi
J. Micropalaeontol., 37, 105–138, https://doi.org/10.5194/jm-37-105-2018, https://doi.org/10.5194/jm-37-105-2018, 2018
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In order to use ocean sediments as a recorder of past oceanographic changes, a critical first step is to stratigraphically date the sediments. The absence of microfossils with known stratigraphic ranges has always hindered dating of Southern Ocean sediments. Here we tie dinocyst ranges to the international timescale in a well-dated sediment core from offshore Antarctica. With this, we can now use dinocysts as a biostratigraphic tool in otherwise stratigraphically poorly dated sediments.
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Charlotte Haugk, Loeka L. Jongejans, Kai Mangelsdorf, Matthias Fuchs, Olga Ogneva, Juri Palmtag, Gesine Mollenhauer, Paul J. Mann, P. Paul Overduin, Guido Grosse, Tina Sanders, Robyn E. Tuerena, Lutz Schirrmeister, Sebastian Wetterich, Alexander Kizyakov, Cornelia Karger, and Jens Strauss
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Aleksandar I. Goranov, Andrew S. Wozniak, Kyle W. Bostick, Andrew R. Zimmerman, Siddhartha Mitra, and Patrick G. Hatcher
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Edgart Flores, Sebastian I. Cantarero, Paula Ruiz-Fernández, Nadia Dildar, Matthias Zabel, Osvaldo Ulloa, and Julio Sepúlveda
Biogeosciences, 19, 1395–1420, https://doi.org/10.5194/bg-19-1395-2022, https://doi.org/10.5194/bg-19-1395-2022, 2022
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In this study, we investigate the chemical diversity and abundance of microbial lipids as markers of organic matter sources in the deepest points of the Atacama Trench sediments and compare them to similar lipid stocks in shallower surface sediments and in the overlying water column. We evaluate possible organic matter provenance and some potential chemical adaptations of the in situ microbial community to the extreme conditions of high hydrostatic pressure in hadal realm.
Birgit Gaye, Niko Lahajnar, Natalie Harms, Sophie Anna Luise Paul, Tim Rixen, and Kay-Christian Emeis
Biogeosciences, 19, 807–830, https://doi.org/10.5194/bg-19-807-2022, https://doi.org/10.5194/bg-19-807-2022, 2022
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Amino acids were analyzed in a large number of samples of particulate and dissolved organic matter from coastal regions and the open ocean. A statistical analysis produced two new biogeochemical indicators. An indicator of sinking particle and sediment degradation (SDI) traces the degradation of organic matter from the surface waters into the sediments. A second indicator shows the residence time of suspended matter in the ocean (RTI).
Zoë R. van Kemenade, Laura Villanueva, Ellen C. Hopmans, Peter Kraal, Harry J. Witte, Jaap S. Sinninghe Damsté, and Darci Rush
Biogeosciences, 19, 201–221, https://doi.org/10.5194/bg-19-201-2022, https://doi.org/10.5194/bg-19-201-2022, 2022
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Anaerobic ammonium oxidation (anammox) is an important nitrogen-removal process in the ocean. We assess the distribution of bacteriohopanetetrol-x (BHT-x), used to trace past anammox, along a redox gradient in the water column of the Benguela upwelling system. BHT-x / BHT ratios of >0.18 correspond to the presence of living anammox bacteria and oxygen levels <50 μmol L−1. This allows for a more robust application of BHT-x to trace past marine anammox and deoxygenation in dynamic marine systems.
Jia-Jang Hung, Ching-Han Tung, Zong-Ying Lin, Yuh-ling Lee Chen, Shao-Hung Peng, Yen-Huei Lin, and Li-Shan Tsai
Biogeosciences, 18, 5141–5162, https://doi.org/10.5194/bg-18-5141-2021, https://doi.org/10.5194/bg-18-5141-2021, 2021
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We report measured active and passive fluxes and their controlling mechanisms in the northern South China Sea (NSCS). The total fluxes were higher than most reports in open oceans, indicating the significance of NSCS in atmospheric CO2 uptake and in storing that CO2 in the ocean’s interior. Winter cooling and extreme events enhanced nutrient availability and elevated fluxes. Global warming may have profound impacts on reducing ocean’s uptake and storage of CO2 in subtropical–tropical oceans.
Jens Daniel Müller, Bernd Schneider, Ulf Gräwe, Peer Fietzek, Marcus Bo Wallin, Anna Rutgersson, Norbert Wasmund, Siegfried Krüger, and Gregor Rehder
Biogeosciences, 18, 4889–4917, https://doi.org/10.5194/bg-18-4889-2021, https://doi.org/10.5194/bg-18-4889-2021, 2021
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Based on profiling pCO2 measurements from a field campaign, we quantify the biomass production of a cyanobacteria bloom in the Baltic Sea, the export of which would foster deep water deoxygenation. We further demonstrate how this biomass production can be accurately reconstructed from long-term surface measurements made on cargo vessels in combination with modelled temperature profiles. This approach enables a better understanding of a severe concern for the Baltic’s good environmental status.
Alexander Braun, Marina Spona-Friedl, Maria Avramov, Martin Elsner, Federico Baltar, Thomas Reinthaler, Gerhard J. Herndl, and Christian Griebler
Biogeosciences, 18, 3689–3700, https://doi.org/10.5194/bg-18-3689-2021, https://doi.org/10.5194/bg-18-3689-2021, 2021
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It is known that CO2 fixation by photoautotrophic organisms is the major sink from the atmosphere. While biologists are aware that CO2 fixation also occurs in heterotrophic organisms, this route of inorganic carbon, and its quantitative role, is hardly recognized in biogeochemistry. We demonstrate that a considerable amount of CO2 is fixed annually through anaplerotic reactions in heterotrophic organisms, and a significant quantity of inorganic carbon is temporally sequestered in biomass.
Jonathan H. Raberg, David J. Harning, Sarah E. Crump, Greg de Wet, Aria Blumm, Sebastian Kopf, Áslaug Geirsdóttir, Gifford H. Miller, and Julio Sepúlveda
Biogeosciences, 18, 3579–3603, https://doi.org/10.5194/bg-18-3579-2021, https://doi.org/10.5194/bg-18-3579-2021, 2021
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BrGDGT lipids are a proxy for temperature in lake sediments, but other parameters like pH can influence them, and seasonality can affect the temperatures they record. We find a warm-season bias at 43 new high-latitude sites. We also present a new method that deconvolves the effects of temperature, pH, and conductivity and generate global calibrations for these variables. Our study provides new paleoclimate tools, insight into brGDGTs at the biochemical level, and a new method for future study.
Charlotte L. Spencer-Jones, Erin L. McClymont, Nicole J. Bale, Ellen C. Hopmans, Stefan Schouten, Juliane Müller, E. Povl Abrahamsen, Claire Allen, Torsten Bickert, Claus-Dieter Hillenbrand, Elaine Mawbey, Victoria Peck, Aleksandra Svalova, and James A. Smith
Biogeosciences, 18, 3485–3504, https://doi.org/10.5194/bg-18-3485-2021, https://doi.org/10.5194/bg-18-3485-2021, 2021
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Long-term ocean temperature records are needed to fully understand the impact of West Antarctic Ice Sheet collapse. Glycerol dialkyl glycerol tetraethers (GDGTs) are powerful tools for reconstructing ocean temperature but can be difficult to apply to the Southern Ocean. Our results show active GDGT synthesis in relatively warm depths of the ocean. This research improves the application of GDGT palaeoceanographic proxies in the Southern Ocean.
Alec W. Armstrong, Leanne Powers, and Michael Gonsior
Biogeosciences, 18, 3367–3390, https://doi.org/10.5194/bg-18-3367-2021, https://doi.org/10.5194/bg-18-3367-2021, 2021
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Living things decay into organic matter, which can dissolve into water (like tea brewing). Tea receives its color by absorbing light. Similarly, this material absorbs light, which can then cause chemical reactions that change it. By measuring changes in these optical properties, we found that materials from some places are more sensitive to light than others. Comparing sensitivity to light helps us understand where these materials come from and what happens as they move through water.
Ben J. Fisher, Johan C. Faust, Oliver W. Moore, Caroline L. Peacock, and Christian März
Biogeosciences, 18, 3409–3419, https://doi.org/10.5194/bg-18-3409-2021, https://doi.org/10.5194/bg-18-3409-2021, 2021
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Organic carbon can be protected from microbial degradation in marine sediments through association with iron minerals on 1000-year timescales. Despite the importance of this carbon sink, our spatial and temporal understanding of iron-bound organic carbon interactions globally is poor. Here we show that caution must be applied when comparing quantification of iron-bound organic carbon extracted by different methods as the extraction strength and method specificity can be highly variable.
Mark A. Stevenson, Suzanne McGowan, Emma J. Pearson, George E. A. Swann, Melanie J. Leng, Vivienne J. Jones, Joseph J. Bailey, Xianyu Huang, and Erika Whiteford
Biogeosciences, 18, 2465–2485, https://doi.org/10.5194/bg-18-2465-2021, https://doi.org/10.5194/bg-18-2465-2021, 2021
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We link detailed stable isotope and biomarker analyses from the catchments of three Arctic upland lakes on Disko Island (West Greenland) to a recent dated sediment core to understand how carbon cycling has changed over the past ~500 years. We find that the carbon deposited in sediments in these upland lakes is predominately sourced from in-lake production due to the catchment's limited terrestrial vegetation and elevation and that recent increases in algal production link with climate change.
Nadine T. Smit, Laura Villanueva, Darci Rush, Fausto Grassa, Caitlyn R. Witkowski, Mira Holzheimer, Adriaan J. Minnaard, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 18, 1463–1479, https://doi.org/10.5194/bg-18-1463-2021, https://doi.org/10.5194/bg-18-1463-2021, 2021
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Soils from an everlasting fire (gas seep) in Sicily, Italy, reveal high relative abundances of novel uncultivated mycobacteria and unique 13C-depleted mycocerosic acids (multi-methyl branched fatty acids) close to the main gas seep. Our results imply that mycocerosic acids in combination with their depleted δ13C values offer a new biomarker tool to study the role of soil mycobacteria as hydrocarbon consumers in the modern and past global carbon cycle.
Marcus P. S. Badger
Biogeosciences, 18, 1149–1160, https://doi.org/10.5194/bg-18-1149-2021, https://doi.org/10.5194/bg-18-1149-2021, 2021
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Reconstructing ancient atmospheric CO2 is an important aim of palaeoclimate science in order to understand the Earth's climate system. One method, the alkenone proxy based on molecular fossils of coccolithophores, has been recently shown to be ineffective at low-to-moderate CO2 levels. In this paper I show that this is likely due to changes in the biogeochemistry of the coccolithophores when there is low carbon availability, but for much of the Cenozoic the alkenone proxy should have utility.
Loes G. J. van Bree, Francien Peterse, Allix J. Baxter, Wannes De Crop, Sigrid van Grinsven, Laura Villanueva, Dirk Verschuren, and Jaap S. Sinninghe Damsté
Biogeosciences, 17, 5443–5463, https://doi.org/10.5194/bg-17-5443-2020, https://doi.org/10.5194/bg-17-5443-2020, 2020
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Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are used as a paleothermometer based on their temperature dependence in global soils, but aquatic production complicates their use in lakes. BrGDGTs in the water column of Lake Chala, East Africa, respond to oxygen conditions and mixing. Changes in their signal can be linked to bacterial community composition rather than membrane adaptation to changing conditions. Their integrated signal in the sediment reflects mean air temperature.
Alexandra N. Loginova, Andrew W. Dale, Frédéric A. C. Le Moigne, Sören Thomsen, Stefan Sommer, David Clemens, Klaus Wallmann, and Anja Engel
Biogeosciences, 17, 4663–4679, https://doi.org/10.5194/bg-17-4663-2020, https://doi.org/10.5194/bg-17-4663-2020, 2020
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We measured dissolved organic carbon (DOC), nitrogen (DON) and matter (DOM) optical properties in pore waters and near-bottom waters of the eastern tropical South Pacific off Peru. The difference between diffusion-driven and net fluxes of DOC and DON and qualitative changes in DOM optical properties suggested active microbial utilisation of the released DOM at the sediment–water interface. Our results suggest that the sediment release of DOM contributes to microbial processes in the area.
Jingjing Guo, Miriam Glendell, Jeroen Meersmans, Frédérique Kirkels, Jack J. Middelburg, and Francien Peterse
Biogeosciences, 17, 3183–3201, https://doi.org/10.5194/bg-17-3183-2020, https://doi.org/10.5194/bg-17-3183-2020, 2020
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The fluxes of soil organic carbon (OC) transport from land to sea are poorly constrained, mostly due to the lack of a specific tracer for soil OC. Here we evaluate the use of specific molecules derived from soil bacteria as a tracer for soil OC in a small river catchment. We find that the initial soil signal is lost upon entering the aquatic environment. However, the local environmental history of the catchment is reflected by these molecules in the lake sediments that act as their sink.
Zhuo-Yi Zhu, Joanne Oakes, Bradley Eyre, Youyou Hao, Edwin Sien Aun Sia, Shan Jiang, Moritz Müller, and Jing Zhang
Biogeosciences, 17, 2473–2485, https://doi.org/10.5194/bg-17-2473-2020, https://doi.org/10.5194/bg-17-2473-2020, 2020
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Samples were collected in August 2016 in the Rajang River and its estuary, with tropical forest in the river basin and peatland in the estuary. Organic matter composition was influenced by transportation in the river basin, whereas peatland added clear biodegraded parts to the fluvial organic matter, which implies modification of the initial lability and/or starting points in the subsequent degradation and alternation processes after the organic matter enters the sea.
Wenjie Xiao, Yasong Wang, Yongsheng Liu, Xi Zhang, Linlin Shi, and Yunping Xu
Biogeosciences, 17, 2135–2148, https://doi.org/10.5194/bg-17-2135-2020, https://doi.org/10.5194/bg-17-2135-2020, 2020
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The hadal zone (6–11 km depth) is the least explored habitat on Earth. We studied microbial branched glycerol dialkyl glycerol tetraethers (brGDGTs) in the Challenger Deep, Mariana Trench. One unique feature is the strong predominance of 6-methyl brGDGT, which likely reflects an adaption of brGDGT-producing bacteria to alkaline seawater and low temperature. BrGDGTs, with elemental and isotopic data, suggest an autochthonous product for brGDGT. A new approach is proposed for brGDGT sourcing.
Yuge Bai, Edisson Subdiaga, Stefan B. Haderlein, Heike Knicker, and Andreas Kappler
Biogeosciences, 17, 683–698, https://doi.org/10.5194/bg-17-683-2020, https://doi.org/10.5194/bg-17-683-2020, 2020
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Biogeochemical processes of SOM are key for greenhouse gas emission and water quality. We extracted SOM by water or by NaOH–HCl under oxic–anoxic conditions. Chemical and anoxic extractions lead to higher SOM electron exchange capacities, resulting in stimulation of microbial Fe(III) reduction. Therefore, aqueous pH-neutral SOM extracts should be used to reflect environmental SOM redox processes, and artifacts of chemical extractions need to be considered when evaluating SOM redox processes.
Yan Shen, Volker Thiel, Pablo Suarez-Gonzalez, Sebastiaan W. Rampen, and Joachim Reitner
Biogeosciences, 17, 649–666, https://doi.org/10.5194/bg-17-649-2020, https://doi.org/10.5194/bg-17-649-2020, 2020
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Today, sterols are widespread in plants, animals, and fungi but are almost absent in the oldest rocks. Microbial mats, representing the earliest complex ecosystems on Earth, were omnipresent in Precambrian marine environments and may have degraded the sterols at that time. Here we analyze the distribution of sterols through a microbial mat. This provides insight into how variations in biological and nonbiological factors affect the preservation of sterols in modern and ancient microbial mats.
Sarah Coffinet, Travis B. Meador, Lukas Mühlena, Kevin W. Becker, Jan Schröder, Qing-Zeng Zhu, Julius S. Lipp, Verena B. Heuer, Matthew P. Crump, and Kai-Uwe Hinrichs
Biogeosciences, 17, 317–330, https://doi.org/10.5194/bg-17-317-2020, https://doi.org/10.5194/bg-17-317-2020, 2020
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This study deals with two membrane lipids called BDGTs and PDGTs. Membrane lipids are molecules forming the cell envelope of all organisms. Different organisms produce different lipids thus they can be used to detect the presence of specific organisms in the environment. We analyzed the structure of these new lipids and looked for potential producers. We found that they are likely made by microbes emitting methane below the sediment surface and could be used to track these specific microbes.
Ying Wu, Kun Zhu, Jing Zhang, Moritz Müller, Shan Jiang, Aazani Mujahid, Mohd Fakharuddin Muhamad, and Edwin Sien Aun Sia
Biogeosciences, 16, 4517–4533, https://doi.org/10.5194/bg-16-4517-2019, https://doi.org/10.5194/bg-16-4517-2019, 2019
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Our understanding of terrestrial organic matter (TOM) in tropical peat-draining rivers remains limited, especially in Southeast Asia. We explored the characteristics of TOM via bulk parameters and lignin phenols of sediment in Malaysia. This showed that the most important plant source of the organic matter in these rivers is woody angiosperm C3 plants with limited diagenetic alteration. This slower degradation of TOM may be a link to higher total nitrogen content, especially for the small river.
Caitlyn R. Witkowski, Sylvain Agostini, Ben P. Harvey, Marcel T. J. van der Meer, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 16, 4451–4461, https://doi.org/10.5194/bg-16-4451-2019, https://doi.org/10.5194/bg-16-4451-2019, 2019
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Carbon dioxide concentrations (pCO2) in the atmosphere play an integral role in Earth system dynamics, especially climate. Past climates help us understand future ones, but reconstructing pCO2 over the geologic record remains a challenge. This research demonstrates new approaches for exploring past pCO2 via the carbon isotope fractionation in general algal lipids, which we test over a high CO2 gradient from a naturally occurring CO2 seep.
Yongli Zhou, Patrick Martin, and Moritz Müller
Biogeosciences, 16, 2733–2749, https://doi.org/10.5194/bg-16-2733-2019, https://doi.org/10.5194/bg-16-2733-2019, 2019
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We found that peatlands in coastal Sarawak, Borneo, export extremely humified organic matter, which dominates the riverine organic matter pool and conservatively mixes with seawater, while the freshly produced fraction is low and stable in concentration at all salinities. We estimated that terrigenous fractions, which showed high photolability, still account for 20 % of the coastal dissolved organic carbon pool, implying the importance of peat-derived organic matter in the coastal carbon cycle.
Kristin Doering, Claudia Ehlert, Philippe Martinez, Martin Frank, and Ralph Schneider
Biogeosciences, 16, 2163–2180, https://doi.org/10.5194/bg-16-2163-2019, https://doi.org/10.5194/bg-16-2163-2019, 2019
Alexandra N. Loginova, Sören Thomsen, Marcus Dengler, Jan Lüdke, and Anja Engel
Biogeosciences, 16, 2033–2047, https://doi.org/10.5194/bg-16-2033-2019, https://doi.org/10.5194/bg-16-2033-2019, 2019
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High primary production in the Peruvian upwelling system is followed by rapid heterotrophic utilization of organic matter and supports the formation of one of the most intense oxygen minimum zones (OMZs) in the world. Here, we estimated vertical fluxes of oxygen and dissolved organic matter (DOM) from the surface to the OMZ. Our results suggest that DOM remineralization substantially reduces oxygen concentration in the upper water column and controls the shape of the upper oxycline.
Carolina Cisternas-Novoa, Frédéric A. C. Le Moigne, and Anja Engel
Biogeosciences, 16, 927–947, https://doi.org/10.5194/bg-16-927-2019, https://doi.org/10.5194/bg-16-927-2019, 2019
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We investigate the composition and vertical fluxes of POM in two deep basins of the Baltic Sea (GB: Gotland Basin and LD: Landsort Deep). The two basins showed different O2 regimes resulting from the intrusion of oxygen-rich water from the North Sea that ventilated the deep waters in GB, but not in LD.
In GB, O2 intrusions lead to a high abundance of manganese oxides that aggregate with POM, altering its composition and vertical flux and contributing to a higher POC transfer efficiency in GB.
Marina Zamanillo, Eva Ortega-Retuerta, Sdena Nunes, Pablo Rodríguez-Ros, Manuel Dall'Osto, Marta Estrada, Maria Montserrat Sala, and Rafel Simó
Biogeosciences, 16, 733–749, https://doi.org/10.5194/bg-16-733-2019, https://doi.org/10.5194/bg-16-733-2019, 2019
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Many marine microorganisms produce polysaccharide-rich transparent exopolymer particles (TEPs) for rather unknown reasons but with important consequences for the ocean carbon cycle, sea–air gas exchange and formation of organic aerosols. Here we compare surface–ocean distributions of TEPs and physical, chemical and biological variables along a N–S transect in the Atlantic Ocean. Our data suggest that phytoplankton and not bacteria are the main TEP producers, and solar radiation acts as a sink.
Michael Philben, Sara Butler, Sharon A. Billings, Ronald Benner, Kate A. Edwards, and Susan E. Ziegler
Biogeosciences, 15, 6731–6746, https://doi.org/10.5194/bg-15-6731-2018, https://doi.org/10.5194/bg-15-6731-2018, 2018
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We explored the relationship between chemical composition and the temperature sensitivity of moss decomposition using 959-day lab incubations. Mass loss was low despite the predominance of carbohydrates, indicating the persistence of labile C. Scanning electron microscopy revealed little change in the moss cell-wall structure. These results suggest that the moss cell-wall matrix protects labile C from decomposition, contributing to the globally important stocks of moss-derived C.
Yinghui Wang, Robert G. M. Spencer, David C. Podgorski, Anne M. Kellerman, Harunur Rashid, Phoebe Zito, Wenjie Xiao, Dandan Wei, Yuanhe Yang, and Yunping Xu
Biogeosciences, 15, 6637–6648, https://doi.org/10.5194/bg-15-6637-2018, https://doi.org/10.5194/bg-15-6637-2018, 2018
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With global warming, thawing of permafrost releases dissolved organic matter (DOM) into streams. By analyzing DOM along an alpine stream on the Qinghai–Tibet Plateau, we found DOM was mainly from the active layer, but with deepening of the active layer, the contribution of the deep permafrost layer increased, causing a change in the chemical composition of DOM. From the head- to downstream, DOM is undergoing rapid degradation, but some components are persistent and can be transported downstream.
Sergio Balzano, Julie Lattaud, Laura Villanueva, Sebastiaan W. Rampen, Corina P. D. Brussaard, Judith van Bleijswijk, Nicole Bale, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 15, 5951–5968, https://doi.org/10.5194/bg-15-5951-2018, https://doi.org/10.5194/bg-15-5951-2018, 2018
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We tried to identify the microbes which biosynthesize a class of lipids widespread in seawater, the long chain alkyl diols (LCDs). We could not find any microorganism likely involved in the production of LCDs. The amounts of LCDs found are too high to be produced by living organisms and are likely to be part of the refractory organic matter persisting for long periods in the water column.
Julie Lattaud, Frédérique Kirkels, Francien Peterse, Chantal V. Freymond, Timothy I. Eglinton, Jens Hefter, Gesine Mollenhauer, Sergio Balzano, Laura Villanueva, Marcel T. J. van der Meer, Ellen C. Hopmans, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 15, 4147–4161, https://doi.org/10.5194/bg-15-4147-2018, https://doi.org/10.5194/bg-15-4147-2018, 2018
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Long-chain diols (LCDs) are biomarkers that occur widespread in marine environments and also in lakes and rivers. In this study, we looked at the distribution of LCDs in three river systems (Godavari, Danube, and Rhine) in relation to season, precipitation, and temperature. We found out that the LCDs are likely being produced in calm areas of the river systems and that marine LCDs have a different distribution than riverine LCDs.
Marcel Bliedtner, Imke K. Schäfer, Roland Zech, and Hans von Suchodoletz
Biogeosciences, 15, 3927–3936, https://doi.org/10.5194/bg-15-3927-2018, https://doi.org/10.5194/bg-15-3927-2018, 2018
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In this study, we systematically analyze leaf wax derived n-alkane patterns in eastern Georgia to test their potential for paleoenvironmental reconstructions in the semi-humid to semi-arid central southern Caucasus region. We investigated the influence of vegetation types on the leaf wax signal in modern plants and topsoil material. Our results show distinct and systematic differences in the n-alkane patterns between vegetation types and prove their potential for vegetation reconstructions.
Mathieu Rembauville, Stéphane Blain, Clara Manno, Geraint Tarling, Anu Thompson, George Wolff, and Ian Salter
Biogeosciences, 15, 3071–3084, https://doi.org/10.5194/bg-15-3071-2018, https://doi.org/10.5194/bg-15-3071-2018, 2018
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Sinking phytoplankton from the surface ocean provide the principal energy source to deep-ocean ecosystems. Our aim was to understand how different phytoplankton communities impact the chemical nature of this sinking material. We show certain types of phytoplankton can preferentially export energy-rich storage compounds to the seafloor. Any climate-driven effects on phytoplankton community structure could thus impact remote deep-ocean ecosystems thousands of kilometres beneath the surface.
Xiaocong Wei, Xiangwen Deng, Wenhua Xiang, Pifeng Lei, Shuai Ouyang, Hongfang Wen, and Liang Chen
Biogeosciences, 15, 2991–3002, https://doi.org/10.5194/bg-15-2991-2018, https://doi.org/10.5194/bg-15-2991-2018, 2018
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Karst is a kind of typical calcium-rich environment, which is widely distributed. We measured the Ca2+ content of 41 plant species, as well as soil total Ca2+ and exchange Ca2+. We found out that different plants have different ways to high Ca2+ adaptation. According to the different high Ca2+ adaptation of the 17 dominant species, we divided them into 3 categories: Ca-indifferent plants, high-Ca plants and low-Ca plants. Our results can provide a theoretical basis for vegetation restoration.
Janina G. Stapel, Georg Schwamborn, Lutz Schirrmeister, Brian Horsfield, and Kai Mangelsdorf
Biogeosciences, 15, 1969–1985, https://doi.org/10.5194/bg-15-1969-2018, https://doi.org/10.5194/bg-15-1969-2018, 2018
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Climate warming in the Arctic results in thawing of permafrost deposits. This promotes the accessibility of freeze-locked old organic matter (OM) accumulated during the past. Characterizing OM of different depositional ages, we were able to show that OM from last glacial Yedoma deposits possess the highest potential to provide organic substrates such as acetate for microbial greenhouse gas production and therefore to accelerate the carbon–climate feedback cycle during ongoing global warming.
Changchun Huang, Quanliang Jiang, Ling Yao, Hao Yang, Chen Lin, Tao Huang, A-Xing Zhu, and Yimin Zhang
Biogeosciences, 15, 1827–1841, https://doi.org/10.5194/bg-15-1827-2018, https://doi.org/10.5194/bg-15-1827-2018, 2018
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The latitudinal dependency of POC / PON in ocean and inland water is significant, regulated by trophic state and climate, etc. factors. POC / PON significantly increased from coastal water (6.89 ± 2.38) to open ocean (7.59 ± 4.22) with the increasing rate of 0.0024 / km. The re-examination of the global relationship between, and variations in, POC and PON could be important for the global and regional coupling between the carbon and nitrogen cycles in the ocean and freshwater.
Nicole J. Bale, Tracy A. Villareal, Ellen C. Hopmans, Corina P. D. Brussaard, Marc Besseling, Denise Dorhout, Jaap S. Sinninghe Damsté, and Stefan Schouten
Biogeosciences, 15, 1229–1241, https://doi.org/10.5194/bg-15-1229-2018, https://doi.org/10.5194/bg-15-1229-2018, 2018
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Associations between diatoms and N-fixing cyanobacteria (diatom–diazotroph associations, DDAs) play an important role in the N cycle of the tropical North Atlantic. Heterocysts are the site of N fixation and contain unique glycolipids. We measured these glycolipids in the water column and surface sediment from the tropical North Atlantic. We found a significant correlation between the concentration of glycolipid and of DDAs, strengthening their application as biomarkers.
Laurent Jeanneau, Richard Rowland, and Shreeram Inamdar
Biogeosciences, 15, 973–985, https://doi.org/10.5194/bg-15-973-2018, https://doi.org/10.5194/bg-15-973-2018, 2018
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The source of particulate organic matter in headwaters during storm events remains an open question. We use the molecular composition of organic matter sampled during four spring–summer storms and compare it to potential sources. We identify litter, streambed and vicinal soils as the main sources of particulate organic matter. Their proportions depend on (i) the size of the catchment and (ii) the rain event.
Suhui Ma, Feng He, Di Tian, Dongting Zou, Zhengbing Yan, Yulong Yang, Tiancheng Zhou, Kaiyue Huang, Haihua Shen, and Jingyun Fang
Biogeosciences, 15, 693–702, https://doi.org/10.5194/bg-15-693-2018, https://doi.org/10.5194/bg-15-693-2018, 2018
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Plant carbon (C) content is critical to the assessment of the global C cycle. Our results showed that the global average C contents in organs were significantly lower than a canonical value of 50 %. Plant C content tended to decrease with increasing latitude, and life form explained more variation than climate. Our findings suggest that specific C content values of different organs and life forms should be incorporated into the estimations of regional and global vegetation biomass C stocks.
Martina Sollai, Ellen C. Hopmans, Nicole J. Bale, Anchelique Mets, Lisa Warden, Matthias Moros, and Jaap S. Sinninghe Damsté
Biogeosciences, 14, 5789–5804, https://doi.org/10.5194/bg-14-5789-2017, https://doi.org/10.5194/bg-14-5789-2017, 2017
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The Baltic Sea is characterized by recurring summer phytoplankton blooms, dominated by a few cyanobacterial species. These bacteria are able to use dinitrogen gas as the source for nitrogen and produce very specific lipids. We analyzed these lipids in a sediment core to study their presence over the past 7000 years. This reveals that cyanobacterial blooms have not only occurred in the last decades but were common at times when the Baltic was connected to the North Sea.
Jordon D. Hemingway, Daniel H. Rothman, Sarah Z. Rosengard, and Valier V. Galy
Biogeosciences, 14, 5099–5114, https://doi.org/10.5194/bg-14-5099-2017, https://doi.org/10.5194/bg-14-5099-2017, 2017
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The balance between organic matter (OM) fixation and decay is a major control on atmospheric CO2 concentrations. Understanding the environmental, chemical, and physical mechanisms that control the distribution of OM decay rates is therefore critical for constraining the global carbon cycle. In this manuscript, we derive a method to relate OM reactivity to its isotope composition using a kinetic model and provide a novel framework to discern the controls on OM decay rates.
Cited articles
Allard, B. and Templier, J.: Comparison of neutral lipid profile of various
trilaminar outer cell wall (TLS)-containing microalgae with emphasis on
algaenan occurrence, Phytochem., 54, 369–380, https://doi.org/10.1016/S0031-9422(00)00135-7, 2000.
Allard, B. and Templier, J.: High molecular weight lipids from the trilaminar
outer wall (TLS)-containing microalgae Chlorella emersonii, Scenedesmus communis and Tetraedron minimum, Phytochem., 57, 459–467, https://doi.org/10.1016/S0031-9422(01)00071-1, 2001.
Aller, R. C.: Transport and reactions in the bioirrigated zone, in: The
Benthic Boundary Layer, edited by: Boudreau, B. P. and Jørgensen, B. B.,
Oxford University Press, Oxford, 269–301, 2001.
Arndt, S., Jørgensen, B. B., LaRowe, D. E., Middelburg, J. J., Pancost,
R. D., and Regnier, R.: Quantifying the degradation of organic matter in marine
sediments: A review and synthesis, Earth-Sci. Rev. 123, 53–86, https://doi.org/10.1016/j.earscirev.2013.02.008, 2013.
Bianchi, T. S., Schreiner, K. M., Smith, R. W., Burdige, D. J., Woodart, S.,
and Conley, D. J.: Redox Effects on Organic Matter Storage in Coastal Sediments
During the Holocene: A Biomarker/Proxy Perspective, Ann. Rev. Earth Planet.
Sci., 44, 295–319, https://doi.org/10.1146/annurev-earth-060614-105417, 2016.
Blokker, P., Schouten, S., van den Ende, H., de Leeuw, J. W., Hatcher, P.
G., and Sinninghe Damsté, J. S.: Chemical structure of algaenans from the
fresh water algae Tetraedron minimum, Scenedesmus communis and Pediastrum boryanum, Org. Geochem., 29, 1453–1468, https://doi.org/10.1016/S0146-6380(98)00111-9, 1998.
Blom, A. V.: Quelques remarques sur le mécanisme de séchage des
peintures à l'huile, Peintures, Pigments, Vernis, 13, 156–162, 1936.
Bogus, K., Harding, I. C., King, A., Charles, A. A., Zonneveld, K. A. F.,
and Versteegh, G. J. M.: The composition and diversity of dinosporin in species
of the Apectodinium complex (Dinoflagellata), Rev. Palaeobot. Palynol., 183, 21–31,
https://doi.org/10.1016/j.revpalbo.2012.07.001, 2012.
Bogus, K., Mertens, K. N., Lauwaert, J., Harding, I. C., Vrielinck, H.,
Zonneveld, K. A. F., and Versteegh, G. J. M.: Differences in the chemical
composition of organic-walled dinoflagellate resting cysts from phototrophic
and heterotrophic dinoflagellates, J. Phycol., 50, 254–266,
https://doi.org/10.1111/jpy.12170, 2014.
Böcker, J., Littke, R., and Forster, A.: An overview on source rocks and
the petroleum system of the central Upper Rhine Graben. Int J Earth Sci
(Geol Rundsch) International Journal of Earth Sciences: GR Geol. Rundschau
106, 707–742, https://doi.org/10.1007/s00531-016-1330-3,2017.
Butterfield, N. J.: Organic preservation of non-mineralizing organisms and
the taphonomy of the Burgess Shale, Paleobiol., 16, 272–286, https://doi.org/10.1017/S0094837300009994, 1990.
Colthup, N. B., Daly, L. H., and Wiberly, S. E.: Introduction to Infrared and
Raman Spectroscopy, Academic Press Limited, London, 547 pp., 1990.
Chu, F.-L. E., Lund, D., Littreal, R., Ruck, E., and Harvey, E.: Species-specific
differences in long-chain n-3 essential fatty acid, sterol, and steroidal
ketone production in six heterotrophic protist species, Aquat. Biol. 6,
159–172, https://doi.org/10.3354/ab00174, 2009.
de Leeuw, J. W. and Largeau, C.: A review of macromolecular compounds that
comprise living organisms and their role in kerogen, coal and petroleum
formation, edited by: Engel M. H. and Macko S. A., in: Organic Geochemistry,
Principles and Applications, Plenum Press, New York, 23–72, https://doi.org/10.1007/978-1-4615-2890-6_2, 1993.
de Leeuw, J. W., Versteegh, G. J. M., and van Bergen, P. F.: Biomacromolecules
of plants and algae and their fossil analogues, Plant Ecol., 189, 209–233,
https://doi.org/10.1007/s11258-005-9027-x, 2006.
Durand, B.: Sedimentary organic matter and kerogen, Definition and
quantitative importance of kerogen, edited by: Durand, B., in: Kerogen: Insoluble
Organic Matter from Sedimentary Rocks, Editions Technip, Paris, 13–34,
1980.
Ellegaard, M., Figueroa, R., and Versteegh, G. J. M.: Dinoflagellate life cycles
and diversity: key foci for future research, edited by: Lewis J. M., Marret F., and Bradley L., in: Biological and Geological Perspectives of
Dinoflagellates, Geol. Soc. London, 241–254, https://doi.org/10.1144/TMS5.24, 2013.
Gatellier, J. P. L. A., de Leeuw, J. W., Sinninghe Damsté, J. S.,
Derenne, S., Largeau, C., Metzger, P.: A comparative study of macromolecular
substances of a Coorongite and cell walls of the extant alga Botryococcus braunii, Geochim.
Cosmochim. Ac., 57, 2053–2068, https://doi.org/10.1016/0016-7037(93)90093-C, 1993.
Goth, K., de Leeuw, J. W., Püttmann, W., and Tegelaar, E. W.: Origin of
Messel Oil Shale kerogen, Nature, 336, 759–761, https://doi.org/10.1038/336759a0,
1988.
Gupta, N. S., Briggs, D. E. G., Collinson, M. E., Evershed, R. P., Michels,
R., and Pancost, R. D.: Molecular preservation of plant and insect cuticles from
the Oligocene Enspel Formation, Germany: Evidence against derivation of
aliphatic polymer from sediment, Org. Geochem., 38, 404–418, https://doi.org/10.1016/j.orggeochem.2006.06.012, 2007.
Gurdebeke, P. R., Mertens, K. N., Bogus, K., Marret, F., Chomérat, N.,
Vrielinck, H., Louwye, S.: Taxonomic re-investigation and geochemical
characterization of Reid's (1974) species of Spiniferites from holotype and
topotype material, Palynol., https://doi.org/10.1080/01916122.2018.1465735, 2018.
Harvey, G. R., Boran, D. A., Chesal, L. A., and Tokar, J. M.: The structure of
marine fulvic and humic acid, Mar. Chem., 12, 119–132, https://doi.org/10.1016/0304-4203(83)90075-0, 1983.
Hebting, Y., Schaeffer, P., Behrens, A., Adam, P., Schmitt, G.,
Schneckenburger, P., Bernasconi, S. M., and Albrecht, P.: Biomarker evidence for
a major preservation pathway of sedimentary organic carbon, Science, 312,
1627–1631, https://doi.org/10.1126/science.1126372, 2006.
Hedges, J. I. and Keil, R. G.: Sedimentary organic matter preservation: an
assessment and speculative synthesis, Mar. Chem. 49, 81–115, https://doi.org/10.1016/0304-4203(95)00008-F, 1995.
Herman, B. M.: Infra-red absorption, scattering, and total attenuation
cross-sections for water spheres, Q. J. Roy. Meteor. Soc., 88,
143–150, 1962.
Hoefs, M. J. L., Rijpstra, W. I. C., and Sinninghe Damsté, J. S.: The
influence of oxic degradation on the sedimentary biomarker record I:
Evidence from Madeira Abyssal Plain turbidites, Geochim. Cosmochim. Ac., 66,
2719–2735, https://doi.org/10.1016/S0016-7037(02)00864-52 2002.
Kohnen, M. E. L., Sinninghe Damsté, J. S., ten Haven, H. L., and de Leeuw,
J. W.: Early incorporation of polysulfides in sedimentary organic matter,
Nature, 341, 640–641, https://doi.org/10.1038/341640a0, 1989.
Kutuzov, I., Rosenberg, Y. O., Bishop, A., and Amrani, A.: The Origin of Organic
Sulphur Compounds and Their Impact on the Paleoenvironmental Record, edited by: Wilkes H., in: Hydrocarbons, Oils and Lipids: Diversity, Origin, Chemistry and
Fate, Springer, https://doi.org/10.1007/978-3-319-54529-5_1-1,
2019.
Lazzari, M. and Chiantore, O.: Drying and oxidative degradation of linseed oil,
Polymer Degr. Stabil. 65, 303–313, https://doi.org/10.1016/S0141-3910(99)00020-8, 1999.
Lin, R. and Ritz, G. P.: Reflectance FT-IR microspectroscopy of fossil algae
contained in organic-rich shales, Appl. Spectroscopy, 47, 265–271,
https://doi.org/10.1366/0003702934066794, 1993.
Luo, Z., Lim, Z. F., Mertens, K. N., Gurdebeke, P., Bogus, K.,
Carbonell-Moore, M. C., Vrielinck, H., Leaw, C. P., Lim, P. T.,
Chomérat, N., Li, X., and Gu, H.: Morpho-molecular diversity and phylogeny
of Bysmatrum (Dinophyceae) from the South China Sea and France, European, J. Phycol., 53, 318–335,
https://doi.org/10.1080/09670262.2018.1449014, 2018.
Mansour, M. P., Volkman, J. K., Jackson, A. E., and Blackburn, S. I.: The fatty
acid and sterol composition of five marine dinoflagellates, J. Phycol., 35,
710–720, https://doi.org/10.1046/j.1529-8817.1999.3540710.x, 1999.
McMurry, H. L. and Thornton, V.: Correlation of Infrared Spectra, Anal. Chem.,
24, 318–334, https://doi.org/10.1021/ac60062a018, 1952.
Mertens, K. N., Gu, H., Takano, Y., Price, A. M., Pospelova, V., Bogus, K.,
Versteegh, G. J. M., Marret, F., Turner, R. E., Rabalais, N. N., and Matsuoka,
K.: The cyst-theca relation of Trinovantedinium pallidifulvum, with erection of Protoperidinium lousianensis sp. nov. and their
phylogenetic position within the Conica group, Palynol., 41, 183–202,
https://doi.org/10.1080/01916122.2016.1147219, 2016.
Mooney, B. D., Nichols, P. D., de Salas, M. F., and Hallegraeff, G. M.: Lipid,
fatty acid and sterol composition of eight species of Kareniaceae
(Dinophyta): chemotaxonomy and putative lipid phycotoxins, J. Phycol., 43,
101–111, https://doi.org/10.1111/j.1529-8817.2006.00312, 2007.
Nierop, K. G., Reichart, G., Veld, H., and Sinninghe Damsté, J. S.: The
influence of oxygen exposure time on the composition of macromolecular
organic matter as revealed by surface sediments on the Murray Ridge (Arabian
Sea), Geochim. Cosmochim. Ac., 206, 40–56, https://doi.org/10.1016/j.gca.2017.02.032,
2017.
Nissenbaum, A. and Kaplan, I. R.: Chemical and isotopic evidence for the in
situ origin of marine humic substances, Limnol. Oceanogr., 17, 570–582,
https://doi.org/10.4319/lo.1972.17.4.0570, 1972.
Nunn, S. and Nishikida, K.: Advanced ATR correction algorithm, Thermo Fisher
Appl. Notes., Note 50581, 1–3, 2008.
Robinson, N., Cranwell, P. A., Eglinton, G., and Jaworski, G. H. M.: Lipids of
four species of freshwater dinoflagellates, Phytochemistry, 26, 411–421, https://doi.org/10.1016/S0031-9422(00)81423-5, 1987.
Potthast, A., Rosenau, T., and Kosma, P.: Analysis of Oxidized Functionalities
in Cellulose, Adv. Polym. Sci., 205, 1–48, https://doi.org/10.1007/12_099, 2006.
Rontani, J. F.: Photooxidative and autoxidative degradation of lipid
components during the senescence of phototrophic organisms, in:
Phytochemistry Research Progress, Nova Science Publishers, Hauppauge, NY,
115–144, 2008.
Pross, J.: Paleo-oxygenation in Tertiary epeiric seas: evidence from
dinoflagellate cysts, Palaeogeogr. Palaeocl., 166,
369–381, https://doi.org/10.1016/S0031-0182(00)00219-4, 2001.
Pross, J. and Schmiedl, G.: Early Oligocene dinoflagellate cysts from the Upper
Rhine Graben (SW Germany): paleoenvironmental and paleoclimatic
implications, Mar. Micropaleontol., 45, 1–24,
https://doi.org/10.1016/S0377-8398(01)00046-9, 2002.
Scalarone, D., Lazzari, M., and Chiantore, O.: Thermally assisted hydrolysis and
methylation-pyrolysis-gas chromatography/mass spectrometry of light-aged
linseed oil, J. Anal. Appl. Pyrol., 58, 503–512, https://doi.org/10.1016/S0165-2370(00)00127-3, 2001.
Schiffbauer, J. D., Xiao, S., Cai, Y., Wallace, A. F., Hua, H., Hunter, J.,
Xu, H., Peng, Y., and Kaufman, A. J.: A unifying model for
Neoproterozoic–Palaeozoic exceptional fossil preservation through
pyritization and carbonaceous compression, Nat. Commun., 5, 1–12,
https://doi.org/10.1038/ncomms6754, 2014
Schouten, S., de Graaf, W., Sinninghe Damsté, J. S., Van Driel, G. B., and de
Leeuw, J. W.: Laboratory simulation of natural sulfurization, 2. Reaction of
multi-functionalized lipids with inorganic polysulfides at low-temperatures,
Org. Geochem., 22, 825–834, https://doi.org/10.1016/0146-6380(94)90142-2, 1994a.
Schouten, S., van Driel, G., Sinninghe Damsté, J. S., and de Leeuw, J. W.:
Natural sulphurisation of ketones and aldehydes: a key reaction in the
formation of organic sulphur compounds, Geochim. Cosmochim. Ac., 58,
5111–5116, https://doi.org/10.1016/j.orggeochem.2007.06.007, 1994b.
Schlich, R. and Wise, S. W.: and Shipboard Scientific Party: Site 748,
Proc. ODP Init. Repts. 120, College station, TX, 157–235, https://doi.org/10.2973/odp.proc.ir.120.110.1989, 1989
Stankiewicz, B. A., Briggs, D. E. G., Michels, R., Collinson, M. E.,
Flannery, M. B., and Evershed, R. P.: Alternative origin of aliphatic polymer
kerogen, Geol., 28, 559–562, https://doi.org/10.1130/0091-7613(2000)28<559:AOOAPI>2.0.CO;2, 2000.
Stankiewicz, B. A., Scott, A. C., Collinson, M. E., Finch, P., Mösle,
B., Briggs, D. E. G., and Evershed, R. P.: Molecular taphonomy of arthropod and
plant cuticles from the Carboniferous of North America: implications for the
origin of kerogen, J. Geol. Soc., 155, 453–462, https://doi.org/10.1144/gsjgs.155.3.0453, 1998.
Vandenbroucke, M. and Largeau, C.: Kerogen origin, evolution and structure,
Org. Geochem., 38, 719–833, https://doi.org/10.1016/j.orggeochem.2007.01.001, 2007.
Versteegh, G. J. M., Blokker, P., Bogus, K., Harding, I., Lewis, J.,
Oltmanns, S., Rochon, A., and Zonneveld, K. A. F.: Infra red spectroscopy, flash
pyrolysis, thermally assisted hydrolysis and methylation (THM) in the
presence of tetramethylammonium hydroxide (TMAH) of cultured and
sediment-derived Lingulodinium polyedrum (Dinoflagellata) cyst walls, Org. Geochem., 43, 92–102,
https://doi.org/10.1016/j.orggeochem.2011.10.007, 2012.
Versteegh, G. J. M., Blokker, P., Wood, G., Collinson, M. E., Sinninghe
Damsté, J. S., and de Leeuw, J. W.: An example of oxidative polymerization
of unsaturated fatty acids as a preservation pathway for microalgal organic
matter, Org. Geochem., 35, 1129–1139, https://doi.org/10.1016/j.orggeochem.2004.06.012,
2004.
Versteegh, G. J. M., Blokker, P., Marshall, C. R., and Pross, J.: Macromolecular
composition of the dinoflagellate cyst Thalassiphora pelagica (Oligocene, SW Germany), Org.
Geochem., 38, 1643–1656, https://doi.org/10.1016/j.orggeochem.2007.06.007, 2007.
Versteegh, G. J. M., Zonneveld, K. A. F., and de Lange, G. J.: Selective aerobic
and anaerobic degradation of lipids and palynomorphs in the Eastern
Mediterranean since the onset of sapropel S1 deposition, Mar. Geol., 278,
177–192, https://doi.org/10.1016/j.margeo.2010.10.00, 2010.
Versteegh, G. J. M., Houben, A. J. P., and Zonneveld, K. A. F.: Micro-FTIR and py-GC-MS data on Thalassiphora pelagica of ODP sample 120-748B-18H-17W,55-57, Pangaea Data Depository, available at: https://doi.pangaea.de/10.1594/PANGAEA.905696 (last access: 8 June 2020), 2019.
Wojdyr, M.: Fityk: a general-purpose peak fitting program, J. Appl.
Crystallogr., 43, 1126–1128, https://doi.org/10.1107/S0021889810030499, 2010.
Vairavamurthy, A. and Mopper, K.: Geochemical formation of organosulphur
compounds (thiols) by addition of H2S to sedimentary organic matter, Nature, 329, 623–625, https://doi.org/10.1038/329623a0, 1987.
Zonneveld, K. A. F., Versteegh, G. J. M., Kasten, S., Eglinton, T. I., Emeis, K.-C., Huguet, C., Koch, B. P., de Lange, G. J., de Leeuw, J. W., Middelburg, J. J., Mollenhauer, G., Prahl, F. G., Rethemeyer, J., and Wakeham, S. G.: Selective preservation of organic matter in marine environments; processes and impact on the sedimentary record, Biogeosciences, 7, 483–511, https://doi.org/10.5194/bg-7-483-2010, 2010.
Zonneveld, K. A. F., Gray, D. D., Kuhn, G., and Versteegh, G. J. M.:
Postdepositional aerobic and anaerobic particulate organic matter
degradation succession reflected by dinoflagellate cysts: The Madeira
Abyssal Plain revisited, Mar. Geol., 408, 87–109, https://doi.org/10.1016/j.margeo.2018.11.010, 2019.
Short summary
Anoxic sediments mostly contain much more organic matter than oxic ones, and therefore organic matter in anoxic settings is often considered to be preserved better than in oxic settings. However, through the analysis of the same fossil dinoflagellate cyst species from both oxic and anoxic settings, we show that at a molecular level the preservation in the oxic sediments may be better since in the anoxic setting the cyst macromolecule has been altered by postdepositional modification.
Anoxic sediments mostly contain much more organic matter than oxic ones, and therefore organic...
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