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Venus: Preliminary topographic and surface imaging results from the Pioneer orbiter

Science

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Abstract

Three large Venus surface features, identified previously in images obtained from Earth-based radar observations, are shown by the Pioneer Venus radar mapper to be elevateds to 10 kilometers above the surrounding terrain. Two of these features, one bright and the other dark, lie adjacent to each other astride the 65??N parallel between longitudes 310??E and 10??E. The combined region forms a huge tectonically uplifted plateau, surmounted by radar-bright ridges that may have either a volcanic or tectonic origin. The third feature, located at 30??N, 283??E, is radar-bright and may consist of volcanic material extruded along a fault zone. A first radar-scattering image, compiled from data obtained by the mapper in its imaging mode, shows a region north of the equator; several circular depressions seen in this area may result from meteoritic impact.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Venus: Preliminary topographic and surface imaging results from the Pioneer orbiter
Series title:
Science
Volume
205
Issue:
4401
Year Published:
1979
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
91
Last page:
93
Number of Pages:
3