Geobiology via PubMed
Posted inAway Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Extremeophiles and Extreme Environments, Habitable Zones, Microbiology & Virology, Sample Return, Status Report

Detection Of The Deep Biosphere In Metamorphic Rocks From The Chinese Continental Scientific Drilling

by Keith Cowing

It is generally accepted that there is a vast, well-populated biosphere in the subsurface, but the depth limit of the terrestrial biosphere has yet to be determined, largely because of […]

Posted inBiochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Status Report

Evaluating Serpentinization as a Source of Phosphite to Microbial Communities in Hydrothermal Vents

by Keith Cowing

Previous studies have documented the presence of phosphite, a reduced and highly soluble form of phosphorus, in serpentinites, which has led to the hypothesis that serpentinizing hydrothermal vents could have […]

Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Fossils & Paleontology, Habitable Zones, Microbiology & Virology, Status Report, Water/Hycean Worlds & Oceanography

Iron‐Oxidizing Bacteria Bloomed in Shallow‐Marine, Subtidal Environments 1.88 Billion Years Ago

by Keith Cowing

The majority of large iron formations (IFs) were deposited leading up to Earth’s great oxidation episode (GOE). Following the GOE, IF deposition decreased for almost 500 Myr.

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