Inferences on the lunar temperature from gravity, stress state and flow laws

Details Inferences on the lunar temperature from gravity, stress state and flow laws Inferences on the lunar temperature from gravity, stress state and flow laws

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980pepi...22...12l&link_type=abstract

Physics of the Earth and Planetary Interiors, vol. 22, Apr. 1980, p. 12-28.

Physics

3

Density (Mass/Volume), Flow Distribution, Lunar Core, Lunar Gravitation, Lunar Temperature, Stress Distribution, Electrical Resistivity, Lunar Surface, Lunar Topography, Mathematical Models, Olivine, Rheology, Moon, Temperatures, Stresses, Flow, Density, Anomalies, Models, Comparisons, Gravity Fields, Mathematical Models, Topography, Spectrum, Isostasy, Mantle, Velocities, Depth, Pressure, Creep, Rheology, Olivines, Data, Interiors, Strain Rate, Lithosphere, Heat Flow, Conductivity, Mascons, Viscosity

Scientific paper

The paper examines inferences on the lunar temperature regime made from the inversion of gravity for density anomalies and stress-state of the moon's interior, and compares these results with flow laws and estimates of strain rates. The spectrum of the lunar gravitational potential indicates that the density anomalies giving rise to the potential are mainly of near-surface origin; if current flow laws for dry olivine can be extrapolated to the conditions of the lunar mantle, and the selenotherms based on electrical conductivity models are valid, the strain rates are too high to explain the preservation of the lateral near-surface density anomalies. It is suggested that the present temperatures in the moon are relatively low, of the order of 800 C or less, at a depth of 300 km.

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