The nature and possible origin of lava-like material within Chenier Crater

Details The nature and possible origin of lava-like material within Chenier Crater The nature and possible origin of lava-like material within Chenier Crater

Dec 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977moon...17..343v&link_type=abstract

The Moon, vol. 17, Dec. 1977, p. 343-352.

Mathematics

Logic

2

Lava, Lunar Craters, Lunar Geology, Magma, Geological Faults, Lunar Far Side, Lunar Topography, Stresses, Stringers, Viscous Flow

Scientific paper

This paper considers the origin of certain tongues of lava-like material in Chenier Crater, a meteorite crater located about 63 km northeast of the major crater, Tsiolkovsky, on the lunar far side. The author contends that the tongues originated from subsurface movement of magma generated as a result of the meteorite impact which created Tsiolkovsky Crater. The impact produced lines of weakness which were further enhanced by the impact forming Chenier. Magma then moved from Tsiolkovsky through the zones of weakness to Chenier Crater, extruding on the surface to form the first stringer. Following the extrusion, magnetic movement stopped and a cap formed over the vent. Enough heat was left in place under Chenier, however, to cause crustal melting and consequently the extrusion of a second and possible third lava-like stringer before the magma chamber under Chenier cooled and a cap over the vents permanently formed. Confirmation of the theory depends upon whether magma can move through weak zones in the lunar subsurface. Indications of this possibility have been suggested in findings dealing with the floors of Tycho and Aristarchus craters and in a study of the effects of artificial cratering.

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