Mathematics – Logic
Scientific paper
Jun 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978icar...34..537n&link_type=abstract
Icarus, vol. 34, June 1978, p. 537-547.
Mathematics
Logic
6
Mars (Planet), Planetary Evolution, Planetary Structure, Planetary Temperature, Abundance, Lunar Rocks, Planetary Composition, Planetary Cores, Planetary Mantles, Models, Viking, Temperatures, Geology, Mars, Evolution, Thermal History, Tectonic History
Scientific paper
A thermal history of Mars is developed on the basis of available geophysical and geological data, including information obtained by the Viking missions. Specification of initial temperatures, composition and heat sources takes into account conduction and subsolidus mantle convection. Four phases in the Martian thermal history are distinguished. Core formation and crust differentiation occur during the first billion years. Partial melting, differentiation and outgassing of the mantle have taken place by the end of 3 billion years. In the 3- to 4-billion year epoch, the lithosphere thickens and the partial melt zone becomes deeper. By 4.6 billion years after commencement of evolution, volcanic activity has subsided, while the partial melt zone continues to shrink.
Hsui Albert T.
Nafi Toksoz M.
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