Other
Scientific paper
Mar 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975moon...12..369s&link_type=abstract
The Moon, vol. 12, Mar. 1975, p. 369-397. Research supported by the National Research Council of Canada.
Other
2
Lunar Crust, Lunar Evolution, Lunar Temperature, Metamorphism (Geology), Thermal Simulation, Astronomical Models, Lunar Geology, Lunar Magnetic Fields, Lunar Maria, Mascons, Mathematical Models, Moon, Selenology, Thermophysical Properties
Scientific paper
A model of lunar thermal evolution is developed which accounts for many of the observed properties of the moon. A series of well established facts is summarized in regard to the lunar crust and asthenosphere, mare basalts, mascons, heat flow, low-order gravity terms, remanent magnetism, and other characteristics. The numerical modeling method is outlined, and a hypothesis is considered in which there is a present day asthenosphere, a heat flow between 24 and 32 ergs/sq cm/sec, a crust which developed early in the moon's history by the melting of the outer 100 to 200 km, and a deep interior at a temperature below the Curie point of iron for the first 1 to 1.5 billion years. Consequences of this model are discussed in relation to lunar viscosity and convection, distribution of radioactivity, the moment of inertia, the mean density, and electrical conductivity. It is proposed that the mare basalts resulted from local remelting associated with giant impacts and that solid body convection took place late in lunar history.
Sharpe H. N.
Strangway David W.
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