Principles of extraterrestrial geological mapping

Details Principles of extraterrestrial geological mapping Principles of extraterrestrial geological mapping

Jul 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974plug.nasa..193g&link_type=abstract

In NASA. Ames Res. Center A Primer in Lunar Geology p 193-197 (SEE N75-13730 04-91)

Other

Lunar Photographs, Lunar Topography, Photomapping, Stratigraphy, Lunar Geology, Lunar Surface, Meteorite Craters, Photointerpretation, Planetary Mapping

Scientific paper

At present, nearly all lunar and planetary mapping is, perforce, done from spacecraft pictures using much the same techniques as are used in normal photogeology. Of course this requires some interpretation because it is necessary to decide what represents a rock unit, the fundamental mapping unit. This is not such a great problem on the moon as it is on the earth or Mars because on the moon there is no running water or atmosphere, nor are there any climatic belts. The main process that modifies the surface is that of meteoroid bombardment, which is a process that operates almost uniformly over the whole surface of the moon. Thus, differences in surface form from one area to another relate directly to the underlying rock, age, composition, lithology and mode of formation. It should be noted that a resolution of at least 1.5 km is required to do useful stratigraphy.

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