The morphological evolution of mare-highland contacts - A potential measure of relative mare surface age

Details The morphological evolution of mare-highland contacts - A potential measure of relative mare surface age The morphological evolution of mare-highland contacts - A potential measure of relative mare surface age

Apr 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976lpsc....7.2801y&link_type=abstract

In: Lunar Science Conference, 7th, Houston, Tex., March 15-19, 1976, Proceedings. Volume 3. (A77-34651 15-91) New York, Pergamon

Other

2

Impact Damage, Lunar Evolution, Lunar Maria, Lunar Surface, Selenology, Erosion, Lava, Meteoritic Damage, Morphology, Orography

Scientific paper

The uniform breaks in slopes along many mare-highland contacts may be debris aprons transported primarily by impact erosion at relatively slow rates. Other suggestions, such as the 'high lava mark' hypothesis, appear inadequate to explain all of the unique characteristics of these widespread features. There is a reasonable correlation of overall slope form (profile) and apron distribution with established mare age provinces. Distinctive debris aprons in the younger maria could represent the initial stages of lunar slope degradation produced mainly by the postmare impact flux. The growth of debris aprons must be qualitatively related to the impact flux recorded on adjacent mare surfaces and could provide an approximate means of extrapolating relative mare ages to highland scarps and crater walls. By combining detailed measurements of lunar slopes with development of a realistic model for impact modification of these features, approximate limits for the cumulative lunar flux distribution through time might be derived.

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