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BG | Articles | Volume 15, issue 5
Biogeosciences, 15, 1535–1548, 2018
https://doi.org/10.5194/bg-15-1535-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 15, 1535–1548, 2018
https://doi.org/10.5194/bg-15-1535-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Ideas and perspectives 15 Mar 2018

Ideas and perspectives | 15 Mar 2018

Ideas and perspectives: hydrothermally driven redistribution and sequestration of early Archaean biomass – the “hydrothermal pump hypothesis”

Jan-Peter Duda et al.

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Cited articles

Banerjee, N. R., Simonetti, A., Furnes, H., Muehlenbachs, K., Staudigel, H., Heaman, L., and Van Kranendonk, M. J.: Direct dating of Archean microbial ichnofossils, Geology, 35, 487–490, https://doi.org/10.1130/g23534a.1, 2007. 
Bauersachs, T., Mudimu, O., Schulz, R., and Schwark, L.: Distribution of long chain heterocyst glycolipids in N2-fixing cyanobacteria of the order Stigonematales, Phytochemistry, 98, 145–150, https://doi.org/10.1016/j.phytochem.2013.11.007, 2014. 
Blake, R. E., Chang, S. J., and Lepland, A.: Phosphate oxygen isotopic evidence for a temperate and biologically active Archaean ocean, Nature, 464, 1029–1032, https://doi.org/10.1038/nature08952, 2010. 
Boreham, C. J., Crick, I. H., and Powell, T. G.: Alternative calibration of the Methylphenanthrene Index against vitrinite reflectance: Application to maturity measurements on oils and sediments, Org. Geochem., 12, 289–294, https://doi.org/10.1016/0146-6380(88)90266-5, 1988. 
Bower, D. M., Steele, A., Fries, M. D., Green, O. R., and Lindsay, J. F.: Raman Imaging Spectroscopy of a Putative Microfossil from the  3.46 Ga Apex Chert: Insights from Quartz Grain Orientation, Astrobiology, 16, 169–180, https://doi.org/10.1089/ast.2014.1207, 2016. 
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The origin of organic matter in the oldest rocks on Earth is commonly ambiguous (biotic vs. abiotic). This problem culminates in the case of hydrothermal chert veins that contain abundant organic matter. Here we demonstrate a microbial origin of kerogen embedded in a 3.5 Gyr old hydrothermal chert vein. We explain this finding with the large-scale redistribution of biomass by hydrothermal fluids, emphasizing the interplay between biological and abiological processes on the early Earth.
The origin of organic matter in the oldest rocks on Earth is commonly ambiguous (biotic vs....
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