Structural analysis of central and eastern Ovda Regio, Venus

Details Structural analysis of central and eastern Ovda Regio, Venus Structural analysis of central and eastern Ovda Regio, Venus

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28..409g&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 409.

Other

3

Venus Surface, Planetary Structure, Planetary Crusts, Tectonics, Planetary Mapping, Plateaus, Folds (Geology), Planetary Mantles

Scientific paper

Ovda Regio is the largest of the Venusian crustal plateaus and lies in Western Aphrodite Terra, Venus. An understanding of the strain history of this region will provide a key to understanding the processes involved in the formation of Ovda Regio and of crustal plateaus in general. This paper reports on a detailed structural mapping and analysis of Ovda and implications for the tectonic evolution of Ovda and other crustal plateaus. The tectonic features of Ovda Regio were mapped using Magellan SAR images. The three major structures seen in Ovda Regio are folds, ribbons, and graben. The folds are interpreted to be contractional, and the graben and ribbons extensional. The strain history recorded in Ovda Regio involves early extension, followed by contraction, then later extension. This strain history is consistent with the formation of Ovda Regio by mantle upwelling.

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