[Nature Communications Earth & Environment] Ferruginous conditions in the Precambrian oceans gave rise to ancient iron formations that contain the oldest recognized traces of life in the form of mineral […]
Siderite
Posted inAstrogeology, Atmospheres, Climate, Weather, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extinction events, Fossils & Paleontology, Habitable Zones, Impact events, Mapping, Geodesy, Cartography, Bathymetry, Meteorites & Asteroids, Status Report
Effect Of A Giant Meteorite Impact On Paleoarchean Surface Environments And Life
Large meteorite impacts must have strongly affected the habitability of the early Earth. Rocks of the Archean Eon record at least 16 major impact events, involving bolides larger than 10 […]
Posted inBiochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Habitable Zones, Mars, Microbiology & Virology, Origin & Evolution of Life, Status Report
Siderite and Vivianite as Energy Sources for the Extreme Acidophilic Bacterium Acidithiobacillus Ferrooxidans in the Context of Mars Habitability
Past and present habitability of Mars have been intensely studied in the context of the search for signals of life. Despite the harsh conditions observed today on the planet, some […]