Physics – Geophysics
Scientific paper
Jun 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pggp.rept..370m&link_type=abstract
In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990 p 370-372 (SEE N92-10728 01-91)
Physics
Geophysics
Craters, Geomorphology, Hypervelocity Impact, Mars Surface, Meteorite Collisions, Planetary Mapping, Computer Programs, Floods, Heat Transmission, Lava, Lunar Maria, Topography
Scientific paper
Meteorite impact craters represent important geological features for revealing the near-surface layers of a planetary surface. In the case of Mars, this characteristic was proposed as a useful method to study spatial variations of such attributes as the distribution of sub-surface volatiles, and heat flow. Using the Planetary Image Cartography System (PICS) software, a quantitative analysis was completed of the geometry of fresh impact craters in the Hesperia Planum region of Mars, where an uniform target material and optimum viewing geometry make possible an analysis of target effects over a large geographic region. Because of the morphologic similarity to the lunar maria, it is likely that Hesperia Planum comprises a series of flood lavas that partially infilled topographic depressions within the Martian highlands. Measurements of partially buried crater rims suggest that the lava flows within Hesperia Planum are between 200-400 m thick.
Hayashi Joan N.
Mouginis-Mark Peter J.
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