Wednesday, April 12, 2017

UMD-led study finds ancient Earth's fingerprints in young volcanic rocks

04/12/2017 10:25 AM EDT

a fountain of lava erupts from Hawaii's Kilauea Iki crater

Earth's mantle is made of solid rock that nonetheless circulates slowly over millions of years. Some geologists assume that this slow circulation would have wiped away any geochemical traces of Earth's early history long ago. But a new study of volcanic rocks that recently erupted from volcanoes in Hawaii and Samoa reveals surprising geochemical anomalies--the "fingerprints" of conditions that existed shortly after the planet formed.


Full story at http://cmns.umd.edu/news-events/features/3842

Source
University of Maryland


This is an NSF News From the Field item.


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