Coastal & Marine Geology InfoBank

USGS CMG InfoBank: The three layers of the Earth's interior


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Comment: 07:22 - 07:46 (00:24)

Source: Annenberg/CPB Resources - Earth Revealed - 3. Earth's Interior

Keywords: geophysicist, crust, mantle, core

Our transcription: Based on seismological research, geophysicists have deduced that the Earth's interior is divided into three layers:

the crust, a thin skin at the surface;

the mantle, a thick shell of rock beneath the crust, which extends down to...

the core, a central sphere roughly half the diameter of the planet.

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Accessibility FOIA Privacy Policies and Notices
U.S. Department of the Interior \| U.S. Geological Survey URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/moviepage/03.01.10.html Page Contact: InfoBank staff Page Last Modified: Wed Aug 27 06:13:44 PDT 2008 (wcs)