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Geophysicists Sort Out Weird Wave Behavior Near Earth's Core

Date:
March 21, 2002
Source:
University Of Michigan
Summary:
Strange things happen in the lower reaches of our planet's mantle, that plastic-like layer between Earth's crust and core that flows under pressure, lifting or lowering features on the surface. Geologists have been intrigued by observations that some seismic waves travel faster than others in particular patches of the lowermost mantle, but they haven't known exactly why that happens. New work by researchers at the University of Michigan and Yale University, published in the March 21 issue of Nature, helps explain the phenomenon and offers new insights into Earth's inner workings.

ANN ARBOR -- Strange things happen in the lower reaches of our planet's mantle, that plastic-like layer between Earth's crust and core that flows under pressure, lifting or lowering features on the surface. Geologists have been intrigued by observations that some seismic waves travel faster than others in particular patches of the lowermost mantle, but they haven't known exactly why that happens. New work by researchers at the University of Michigan and Yale University, published in the March 21 issue of Nature, helps explain the phenomenon and offers new insights into Earth's inner workings.


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The above story is based on materials provided by University Of Michigan. Note: Materials may be edited for content and length.


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University Of Michigan. "Geophysicists Sort Out Weird Wave Behavior Near Earth's Core." ScienceDaily. ScienceDaily, 21 March 2002. <www.sciencedaily.com/releases/2002/03/020321071206.htm>.
University Of Michigan. (2002, March 21). Geophysicists Sort Out Weird Wave Behavior Near Earth's Core. ScienceDaily. Retrieved April 20, 2014 from www.sciencedaily.com/releases/2002/03/020321071206.htm
University Of Michigan. "Geophysicists Sort Out Weird Wave Behavior Near Earth's Core." ScienceDaily. www.sciencedaily.com/releases/2002/03/020321071206.htm (accessed April 20, 2014).

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