Venus: Further Evidence of Impact Cratering and Tectonic Activity from Radar Observations

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Science  29 Jun 1979:
Vol. 204, Issue 4400, pp. 1424-1427
DOI: 10.1126/science.204.4400.1424


Earth-based radar images at a resolution of 10 kilometers show a diverse surface terrain on Venus, probably produced by both impact events and tectonic activity. Only a small number of craters of apparent impact origin are seen. Large-scale features show lineaments and parallel ridges suggesting tectonic origins.