Grabens, basin tectonics, and the maximum total expansion of the moon

Details Grabens, basin tectonics, and the maximum total expansion of the moon Grabens, basin tectonics, and the maximum total expansion of the moon

Apr 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jgr....88.3563g&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 88, April 10, 1983, p. 3563-3578.

Mathematics

Logic

27

Geological Faults, Lunar Evolution, Selenology, Structural Basins, Tectonics, Curvature, Kinematics, Lunar Crust, Lunar Maria, Moon, Grabens, Basins, Tectonism, Expansion, Wrinkle Ridges, Stress, Features, Formation, Origin, Models, Thermal Effects, Evolution, Kinematics, Dynamics, Geometry, Mechanics, Crust, Comparisons, Subsidence, Hypotheses, Thickness

Scientific paper

Information from lunar grabens is used to address the question of whether the grabens and wrinkle ridges are tectonic or volcanic in origin. The geometry of simple grabens is discussed, and the kinematics and mechanics are addressed in terms of an elastic response model, a brittle response model, the mechanics of the megaregolith, and total extension for all lunar grabens. Constraints on the thermal evolution of the moon are considered, including thermal history calculations and grabens in space and time. Mare basin tectonics is discussed in terms of two kinematic models/ subsidence by increased radius of curvature and subsidence with no increase in radius of curvature. It is concluded that the observable geological history of the moon is inconsistent with any significant expansion of the moon since about 3.9 billion years ago. Both thermal and tectonic models of lunar evolution are critized.

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