Impact craters of Venus - A continuation of the analysis of data from the Venera 15 and 16 Spacecraft

Details Impact craters of Venus - A continuation of the analysis of data from the Venera 15 and 16 Spacecraft Impact craters of Venus - A continuation of the analysis of data from the Venera 15 and 16 Spacecraft

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....9212869b&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 92, Nov. 10, 1987, p. 12869-12901.

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51

Planetary Craters, Venera Satellites, Venus Surface, Frequency Distribution, Image Analysis, Radar Imagery, Spatial Distribution, Venus Radar Echoes, Venus, Impact Craters, Analysis, Spacecraft Observations, Venera 15, Age, Venera 16, Radar Methods, Imagery, Altimetry, Morphology, Cratering, Classification, Production Rate, Photographs, Distribution, Morphometry, Parameters, Size, Depth, Diameter, Catalog, Earth-Based Observations, Surface, Features, Atmosphere, Calculations

Scientific paper

This paper describes and interprets data on about 150 impact craters on the northern quarter of the Venusian surface, approximately 115,000,000 sq km, which was surveyed by the Venera 15/16 spacecraft. The craters were found to display the size-dependent variations in morphology which are well known from other planets. Assuming a crater production rate based on estimates by Hartmann et al. (1981), their areal density indicates an age for the total population of approximately 1 billion yr. The analysis of areal and size frequency distribution of a number of circular features of unclear origin has indicated that some of them may be highly degraded impact craters corresponding to a population of about 3 billion years of age. A table listing the craters, their positions, diameters, class, and the terrain is presented.

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