Tectonics and volcanism of Eastern Aphrodite Terra, Venus - No subduction, no spreading

Details Tectonics and volcanism of Eastern Aphrodite Terra, Venus - No subduction, no spreading Tectonics and volcanism of Eastern Aphrodite Terra, Venus - No subduction, no spreading

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993sci...260..526h&link_type=abstract

Science (ISSN 0036-8075), vol. 260, no. 5107, p. 526-530.

Mathematics

Logic

29

Plates (Tectonics), Relief Maps, Venus Surface, Volcanoes, Radar Imagery, Topography, Venus, Tectonics, Volcanism, Aphrodite Terra, Surface, Features, Crust, Geology, Structure, Diapirism, Origin, Formation, Magellan Mission, Spacecraft Observations, Sar Instrument, Model, Description, Magma

Scientific paper

Eastern Aphrodite Terra, a deformed region with high topographic relief on Venus, has been interpreted as analogous to a terrestrial extensional or convergent plate boundary. However, analysis of geological and structural relations indicates that the tectonics of eastern Aphrodite Terra is dominated by blistering of the crust by magma diapirs. The findings imply that, within this region, vertical tectonism dominates over horizontal tectonism and, consequently, that this region is neither a divergent nor a convergent plate boundary.

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