News tagged with geologic formation

Oldest known sponge found in China

(Phys.org)—A team of researchers with members from China, the U.S. and France has identified an ancient sponge found in a geologic formation in southern China and have dated it to 600 million years ago. ...

dateMar 10, 2015 in Evolution report
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How good is the fossil record?

Methods have been developed to try to identify and correct for bias in the fossil record but new research from the Universities of Bristol and Bath, suggests many of these correction methods may actually be misleading.

dateSep 04, 2014 in Archaeology & Fossils
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Life's history in iron

A new study examines how Earth's oldest iron formations could have been formed before oxygenic photosynthesis played a role in oxidizing iron.

dateNov 07, 2014 in Earth Sciences
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Iron in primeval seas rusted by bacteria

(Phys.org) —Researchers from the University of Tübingen have been able to show for the first time how microorganisms contributed to the formation of the world's biggest iron ore deposits. The biggest known ...

dateApr 25, 2013 in Earth Sciences
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Geologists map rocks to soak CO2 from air

A new report by scientists at Columbia University's Earth Institute and the US Geological Survey points to an abundant supply of carbon-trapping rock in the US that could be used to help stabilize global warming. ...

dateMar 05, 2009 in Environment
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Reservoirs of ancient lava shaped Earth

Geological history has periodically featured giant lava eruptions that coat large swaths of land or ocean floor with basaltic lava, which hardens into rock formations called flood basalt. New research from Matthew Jackson ...

dateJul 27, 2011 in Earth Sciences
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