Physics – Space Physics
Scientific paper
Jul 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983rvgsp..21.1358p&link_type=abstract
Reviews of Geophysics and Space Physics (ISSN 0034-6853), vol. 21, July 1983, p. 1358-1372.
Physics
Space Physics
Earth Crust, Earth Mantle, Petrology, Planetary Composition, Planetary Evolution, Basalt, Chemical Evolution, Geochemistry, Igneous Rocks
Scientific paper
An examination is undertaken of the sources of data for the study of terrestrial crust and mantle evolution. The two interrelated approaches to this task involve, on the one hand, the interpretation of data from available materials, and on the other the modeling of expected processes and their products from experimental and theoretical arguments. The former is presently considered in light of the evidence for additions to the crust noted in the study of igneous activity and, possibly, of metasomatism, in the evidence found for fractionation in the mantle through the study of igneous activity and mantle xenoliths, in the evidence for recycling of material both within the crust and through return of crust to the mantle, and in the evidence provided by other planetary bodies.
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