News From the Field
Geophysicists Claim Conventional Understanding of Earth's Deep-water Cycle Needs Revision
October 18, 2010
A popular view among geophysicists is that large amounts of water are carried from the oceans to the deep mantle in subduction zones--boundaries where the Earth's crustal plates converge, with one plate riding over the other. But now geophysicists, led by the University of California, Riverside's, Harry Green, present results that contradict this view. They compare seismic and experimental evidence to argue that subducting slabs do not carry water deeper than about 400 kilometers.
University of California, Riverside
The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2017, its budget is $7.5 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives more than 48,000 competitive proposals for funding and makes about 12,000 new funding awards.
Get News Updates by Email
Useful NSF Web Sites:
NSF Home Page: https://www.nsf.gov
NSF News: https://www.nsf.gov/news/
For the News Media: https://www.nsf.gov/news/newsroom.jsp
Science and Engineering Statistics: https://www.nsf.gov/statistics/
Awards Searches: https://www.nsf.gov/awardsearch/