Effect of a Hadean terrestrial magma ocean on crust and mantle evolution

Details Effect of a Hadean terrestrial magma ocean on crust and mantle evolution Effect of a Hadean terrestrial magma ocean on crust and mantle evolution

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jgr....88.4963h&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 88, June 10, 1983, p. 4963-4983. Research supported by the California Ins

Physics

28

Earth Mantle, Lithology, Magma, Melts (Crystal Growth), Planetary Evolution, Chemical Composition, Chemical Evolution, Crystallization, Earth Crust, Phase Transformations, Stratigraphy

Scientific paper

The crystallization of deep zones of melt near the earth's surface is modeled. In particular, the thermal and chemical evolution and subsequent subsolidus convective modification of a 120 km deep, nearly global magma lake is examined in terms of end member compositions. The effects of relaxing the basic model assumptions concerning stratigraphic depth and composition are considered in order to determine which features of the cumulate stratigraphy are model dependent and which are generally applicable. The general features of the model are then compared with the present-day crust and upper mantle in order to evaluate whether a magma ocean could have existed in the Hadean.

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