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Science 1 July 1983:
Vol. 221. no. 4605, pp. 57 - 59
DOI: 10.1126/science.221.4605.57
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Articles

Venera 13 and Venera 14: Sedimentary Rocks on Venus?

C. P. FLORENSKY 1, A. T. BASILEVSKY 1, V. P. KRYUCHKOV 1, R. O. KUSMIN 1, O. V. NIKOLAEVA 1, A. A. PRONIN 1, I. M. CHERNAYA 1, YU. S. TYUFLIN 2, A. S. SELIVANOV 3, M. K. NARAEVA 3, and L. B. RONCA 4

1 Vernadsky Institute, U.S.S.R. Academy of Sciences, Moscow
2 Central Scientific Research Institute of Geodesy, Moscow
3 State Scientific Research Center for the Study of Natural Resources, Moscow
4 Department of Geology, Wayne State University, Detroit, Michigan 48202

Venera 13 and Venera 14 transmitted almost complete panoramic views of their landing sites. Analyses of the photographs show the presence of rock formations undergoing geomorphic degradation. The formations display ripple marks, thin layering, differential erosion, and curvilinear fracturings. Some of them are interpreted as lithified clastic sediments. The lithification could have taken place at depth or at the surface, resulting in a type of duricrust. The origin of the sediments is unknown but could be aeolian, volcanic, or related to impacts or to turbidity currents.

Submitted on September 22, 1982
Revised on January 18, 1983


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Magellan: Electrical and Physical Properties of Venus' Surface.
G. L. Tyler, G. L. TYLER, P. G. FORD, D. B. CAMPBELL, C. ELACHI, G. H. PETTENGILL, and R. A. SIMPSON (1991)
Science 252, 265-270
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