Mathematics – Probability
Scientific paper
Jul 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979stin...7928101d&link_type=abstract
Final Report University of Northeast Louisiana, Monroe. Dept. of Geosciences.
Mathematics
Probability
Basalt, Lunar Maria, Lunar Surface, Structural Properties (Geology), Surface Properties, Thickness, Gravity Anomalies, Lunar Craters, Lunar Geology, Selenology, Structural Basins, Topography
Scientific paper
An isopach map of the basalt thickness in the western mare basins is constructed from measurements of the exposed external rim height of partially buried craters. The data, although numerically sparse, is sufficiently distributed to yield gross thickness variations. The average basalt thickness in Oceanus Procellarum and adjacent regions is 400 m with local lenses in excess of 1500 m in the circular maria. The total volume of basalt in the western maria is estimated to be in the range of 1.5 x 10 to the 6th power cu km. The chief distinction between the eastern and western maria appears to be one of basalt volumes erupted to the surface. Maximum volumes of basalt are deposited west of the central highlands and flood subjacent terrain to a greater extent than on the east. The surface structures of the western maria reflect the probability of a greater degree of isostatic response to a larger surface loading by the greater accumulation of mare basalt.
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