Friday, August 13, 2004

Earth, Development of the Earth's structure and composition

The origin of the Earth in its present form has been the subject of intellectual interest for centuries, but the decades since 1950 have seen major advances both in concepts and in measurements pertaining to this topic. The quantitative analysis by geochemists of the isotopes in meteorites and, in particular, the study of lunar rocks obtained during the U.S. Apollo program


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