The relationship between crustal tectonics and internal evolution in the moon and Mercury

Details The relationship between crustal tectonics and internal evolution in the moon and Mercury The relationship between crustal tectonics and internal evolution in the moon and Mercury

Nov 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977pepi...15..135s&link_type=abstract

(Lunar Science Institute, Conference on Comparisons of Mercury and the Moon, Houston, Tex., Nov. 15-17, 1976.) Physics of the Ea

Mathematics

Logic

27

Crustal Fractures, Lunar Evolution, Mercury (Planet), Planetary Crusts, Planetary Evolution, Tectonics, Contraction, Geological Faults, Heat Transfer, Lunar Core, Lunar Crust, Planetary Cores, Planetary Temperature, Thermal Stresses, Volcanology

Scientific paper

The relationship between crustal tectonics and thermal evolution is discussed in terms of the moon and Mercury. Finite strain theory and depth and temperature-dependent thermal expansion are used to evaluate previous conclusions about early lunar history. Factors bringing about core differentiation in the first 0.6 b.y. of Mercurian evolution are described. The influence of concentrating radioactive heat sources located in Mercury's crust on the predicted contraction is outlined. The predicted planetary volume change is explored with regard to quantitative limits on the extent of Mercurian core solidification. Lunar and Mercurian thermal stresses involved in thermal evolution are reviewed, noting the history of surface volcanism. It is concluded that surface faulting and volcanism are closely associated with the thermal evolution of the whole planetary volume. As the planet cools or is heated, several types of tectonic and volcanic effects may be produced by thermal stress occurring in the lithosphere.

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