Research of the state of convection in the Earth's mantle

Details Research of the state of convection in the Earth's mantle Research of the state of convection in the Earth's mantle

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981sao..reptq....r&link_type=abstract

Final Report, 1 May 1979 - 28 Feb. 1981 Smithsonian Astrophysical Observatory, Cambridge, MA.

Astronomy and Astrophysics

Astrophysics

Convection, Earth Mantle, Geoids, Geos 3 Satellite, Lithosphere, Seasat Satellites, Earth Planetary Structure, Seamounts, Topography

Scientific paper

The behavior and mechanical properties of the lithosphere are studied. Geoid heights derived from the GEOS 3 and SEASAT radar altimeters were used. The following predictive capabilities are discussed: location of unknown seamounts from the knowledge of the geoid heights; prediction of gravity field from the knowledge of the topography and past history of the relief; or insight into the history of a region from the knowledge of both topography and geoid heights. Several geographical areas were studied, including the Walvis Ridge and Rio Grande Rise in the Southern Atlantic Ocean and several seamount chains in the Central Pacific Ocean. Two main factors influence geoid height: conditions of creation and age of the lithosphere at the time of loading.

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