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Parga and Hecate Chasmata, Venus: Structure, volcanism and models of formationLinear zones of deformation in the equatorial zone of Venus characterized by extension and volcanism have previously been identified in Pioneer Venus and Arecibo data. Two of these zones, Parga and Hecate Chasmata, are seen in Magellan data to be characterized by systems of fractures along which lie numerous coronae and corona-like features. The relationship between tectonic deformation, corona formation, and volcanism in Parga and Hecate Chasmata is examined using Magellan image and altimetry data. We examine several hypotheses for the origin of these zones, including extension and upwelling and delamination or subduction. In a companion abstract, we examine a section of Hecate Chasma in detail.
Document ID
19940016323
Document Type
Conference Paper
Authors
Stofan, Ellen R. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hamilton, Victoria E. (Occidental Coll. Los Angeles, CA., United States)
Cotugno, Kristen (Massachusetts Univ. Amherst., United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Lunar and Planetary Inst., Twenty-Fourth Lunar and Planetary Science Conference. Part 3: N-Z
Subject Category
LUNAR AND PLANETARY EXPLORATION
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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