Biogeochemistry of Recently Fossilized Siliceous Hot Spring Sinters from Yellowstone, USA

Biogeochemistry of Recently Fossilized Siliceous Hot Spring Sinters from Yellowstone, USA

Active hot springs are dynamic geobiologically active environments. Heat- and element-enriched fluids form hot spring sinter deposits that are inhabited by microbial and macroscopic eukaryotic communities, but it is unclear how variable heat, fluid circulation, and mineralization within hot spring s...

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Veröffentlicht in:Astrobiology 2023-02, Vol.23 (2), p.155-171
Hauptverfasser: Teece, Bronwyn L, Havig, Jeff R, George, Simon C, Hamilton, Trinity L, Baumgartner, Raphael J, Hartz, Julie, Van Kranendonk, Martin J
Format: Artikel
Sprache:eng
Schlagworte:
Alkanes
Analytical methods
Biogeochemistry
Community composition
Fluids
Fossils
Geochemistry
Hopanes
Hot springs
Hot Springs - chemistry
Hot Temperature
Hydrocarbons
Hydrothermal systems
Kerogen
Microorganisms
Mineralization
National parks
Organic matter
Preservation
Raman spectroscopy
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Zusammenfassung:Active hot springs are dynamic geobiologically active environments. Heat- and element-enriched fluids form hot spring sinter deposits that are inhabited by microbial and macroscopic eukaryotic communities, but it is unclear how variable heat, fluid circulation, and mineralization within hot spring systems affect the preservation of organic matter in sinters. We present geological, petrographic, and organic geochemical data from fossilized hot spring sinters (
ISSN:1531-1074
1557-8070
DOI:10.1089/ast.2022.0012