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Biogeosciences An interactive open-access journal of the European Geosciences Union
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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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Short summary
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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