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Volatiles -- such as water, carbon dioxide and the noble gases -- come out of the earth's interior through volcanism and may be injected into the mantle from the atmosphere, a pair of processes called mantle degassing and regassing. The exchange controls the habitability...

source: Washington University in St. Louis via ScienceDaily

New research led by glaciologists and isotope geochemists from the University of Bristol has found that melting ice sheets provide the surrounding oceans with the essential nutrient silica.

source: University of Bristol

Researchers at Syracuse University are looking to the geologic past to make future projections about climate change. Christopher K. Junium, assistant professor of Earth sciences in the College of Arts and Sciences (A&S), is the...

source: Syracuse University via Phys.org

The severity of drought conditions during the demise of the Maya civilization about 1,000 years ago has been quantified, representing another piece of evidence that could be used to solve the longstanding mystery of what caused the downfall of one of the ancient world's...

source: University of Cambridge via ScienceDaily

Scientists believe the solar system was formed some 4.6 billion years ago when a cloud of gas and dust collapsed under gravity possibly triggered by a cataclysmic explosion from a nearby massive star or supernova. As this cloud collapsed,...

source: University of New Mexico via ScienceDaily

The oxygenation of Earth's atmosphere was thanks, in part, to iron and silica particles in ancient seawater, according to a new study by geomicrobiologists. But these results solve only part of this ancient mystery.

source: University of Alberta via ScienceDaily

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