Computer Science
Scientific paper
Apr 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993p%26ss...41..269b&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 41, no. 4, p. 269-283.
Computer Science
37
Mars Surface, Planetary Crusts, Planetary Evolution, Planetary Geology, Planetary Mantles, Mars Environment, Mars Volcanoes, Planetary Cores, Tectonics, Mars, Mantle, Differentiation, Crust, Model, Evolution, Comparison, Origin, Formation, Partial Melting, Thickness, Lithology, Heat Flow, Thermal Effects, Temperature, Depletion, Calculations, Homogeneity, Parameters, Tectonics, Isotopes, Martian Meteorites, Snc Meteorites, Argon 40, Atmosphere, Enrichment
Scientific paper
The question of the origin and consequences of the global dichotomy of the Mars surface is examined. A comparison is given of two thermal evolution models with crust formation and mantle differentiation. The homogeneous distribution model assumes steady growth of a basaltic crust as a consequence of pressure-release partial melting of mantle. The early differentiation model incorporates the global dichotomy of the Mars surface and an early differentiation event that is assumed to have produced the primordial enriched southerly hemisphere crust. It is concluded that the differentiation model is too simplistic for Mars and that the homogeneous distribution model is more consistent with evidence from meteorites.
Breuer Doris
Spohn Tilman
Wüllner U.
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