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Author: PETER J. SMITH Department of Earth Sciences Open University Milton Keynes, U.K. The Cleopatra structure on Venus, 100 kilometers in diameter, has the morphology of an impact crater but the distinctly different depth-diameter ratio of a volcanic crater. It is not yet possible to decide whether it is a very strange impact crater or a very strange volcanic crater. A.T. Basilevsky, B.A. Ivanov, "Cleopatra crater on Venus: Venera 15/16 data and impact/volcanic origin controversy," Geophys

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Author: PETER J. SMITH
Department of Earth Sciences
Open University
Milton Keynes, U.K.

A.T. Basilevsky, B.A. Ivanov, "Cleopatra crater on Venus: Venera 15/16 data and impact/volcanic origin controversy," Geophysical Research Letters, 17

J.W. Head, "Formation of mountain belts on Venus: evidence for large-scale convergence, underthrusting, and crustal imbrication in Freyja Montes, Ishtar Terra," Geology, 18, 99-102, February 1990. (Brown University, Providence, R.I.)

M. Hovland, "Do carbonate reefs form due to fluid seepage?" Terra Nova, 2, 8-18, 1990. (Statoil, Stavanger, Norway)

P.T. Delaney, R.S. Fiske, A. Miklius, A.T. Okamura, M.K. Sako, "Deep magma body beneath the summit and rift zones of Kilauea Volcano, Hawaii," Science, 247, 1311-16, 16 March 1990. (U.S. Geological Survey, Hawaii; Smithsonian Institution, Washington, D.C.)

J.-C. Semp‚r‚, G.M. Purdy, H. Schouten, "Segmentation of the Mid-Atlantic Ridge between 24øN and 30ø40' N," Nature, 344, 427-31, 29 March 1990. (University of Washington, Seattle; Woods Hole Oceanographic Institution, Mass.)

D.A. Schneider, ...

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