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News tagged with hematite

Deep-sea rocks point to early oxygen on Earth

Red jasper cored from layers 3.46 billion years old suggests that not only did the oceans contain abundant oxygen then, but that the atmosphere was as oxygen rich as it is today, according to geologists.

Space & Earth / Earth Sciences

created Mar 24, 2009 | popularity 4.9 / 5 (15) | comments 1

Atmospheric origin of Martian interior layered deposits: Links to climate change and the global sulfur cycle

(PhysOrg.com) -- Researchers from the Planetary Science Institute (PSI) and NASA Johnson Space Center (JSC) have proposed a new hypothesis to explain a class of enigmatic geologic features on Mars that have ...

Space & Earth / Space Exploration

created Mar 28, 2012 | popularity 5 / 5 (1) | comments 0