Formation of Ishtar Terra, Venus: surface and gravity constraints

V. L. Hansen, R. J. Phillips

Research output: Contribution to journalArticle

29 Scopus citations

Abstract

We examine the geology of Ishtar Terra, Venus, as viewed in high-resolution Magellan synthetic-aperture radar imagery and altimetry, in order to interpret regional surface strain patterns. Ishtar straddles a long-wavelength topographic bulge that is compensated at ~130±40km depth, whereas the short-wavelength features (individual mountain belts and tesserae) are compensated at varying depths in a range of ~25-70 km. These two ranges of compensation, taken together with surface strain patterns, lead us to postulate a new model for the evolution of Ishtar Terra. -from Authors

Original languageEnglish (US)
Pages (from-to)292-296
Number of pages5
JournalGeology
Volume23
Issue number4
DOIs
StatePublished - Jan 1 1995

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