Tracing Biosignature Preservation of Geothermally Silicified Microbial Textures into the Geological Record

Tracing Biosignature Preservation of Geothermally Silicified Microbial Textures into the Geological Record

New Zealand and Argentine (Late Jurassic-Recent) siliceous hot-spring deposits (sinter) reveal preservation pathways of environmentally controlled, microbe-dominated sedimentary facies over geological time scales. Texturally distinctive, laminated to thinly layered, dense and vertically oriented, mi...

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Veröffentlicht in:Astrobiology 2015-10, Vol.15 (10), p.858-882
Hauptverfasser: Campbell, Kathleen A, Lynne, Bridget Y, Handley, Kim M, Jordan, Sacha, Farmer, Jack D, Guido, Diego M, Foucher, Frédéric, Turner, Susan, Perry, Randall S
Format: Artikel
Sprache:eng
Schlagworte:
Argentina
Biofilms
Biomarkers - chemistry
Calothrix
Cyanobacteria
Cyanobacteria - chemistry
Cyanobacteria - ultrastructure
Fossils - microbiology
Fossils - ultrastructure
Geologic Sediments - chemistry
Geologic Sediments - microbiology
Hot Springs - chemistry
Hot Springs - microbiology
Lipids - chemistry
Microscopy, Electron, Scanning
New Zealand
Rivulariaceae
Silicon Dioxide
Spectrum Analysis, Raman
X-Ray Diffraction
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Zusammenfassung:New Zealand and Argentine (Late Jurassic-Recent) siliceous hot-spring deposits (sinter) reveal preservation pathways of environmentally controlled, microbe-dominated sedimentary facies over geological time scales. Texturally distinctive, laminated to thinly layered, dense and vertically oriented, microtubular "palisade" fabric is common in low-temperature (
ISSN:1531-1074
1557-8070
DOI:10.1089/ast.2015.1307