Pioneer Venus radar results - Geology from images and altimetry

Details Pioneer Venus radar results - Geology from images and altimetry Pioneer Venus radar results - Geology from images and altimetry

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jgr....85.8232m&link_type=abstract

Journal of Geophysical Research, vol. 85, Dec. 30, 1980, p. 8232-8260.

Physics

86

Venus, Radar Methods, Geology, Imagery, Altimetry, Mapping, Surface, Maps, Terrain, Topography, Spacecraft Observations, Morphology, Crust, Earth-Based Observations, Roughness, History, Plains, Diagrams, Scarps, Highlands, Comparisons, Lowlands, Tectonics, Lineaments, Formation, Origin, Composition, Craters, Chronology

Scientific paper

An unimodal distribution of relief for Venus was obtained from the Pioneer Venus altimetry measurements. The 'upland' rolling plains constituting 65% of the surface show dark circular lava-filled impact basins; highlands in the 8% of the area comprise Ishtar Terra and Aphrodite Terra; and the lowlands consist of crudely circular surfaces with low relief within the highlands. The complex ridge-and-trough regions east of Ishtar Terra and in the southern Aphrodite Terra may be due to large-scale crustal motions.

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