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Venusian channels and valleys - Distribution and volcanological implicationsAn updated map is presented which shows the distribution of more than 200 channels and valleys on Venus. A large number of channels are concentrated in equatorial regions characterized by highlands, rift and fracture zones, an associated volcanic features. Many channels associated with flow deposits are similar to typical terrestrial lava drainage channels. They are associated with a wide range of volcanic edifices. More than half of the sinuous rilles are associated with coronae, coronalike features, or arachnoids. Corona volcanism driven by mantle plume events may explain this association. Many valley network are observed in highlands and in association with coronae, coronalike features, or arachnoids. This indicates that highlands and coronae provided fractures and flow-viscosity lavas, both of which seem to be required for network formation by lava sapping processes. Canali-type channels have a unique distribution limited to some plains regions.
Document ID
Document Type
Reprint (Version printed in journal)
External Source(s)
Komatsu, Goro
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Baker, Victor R.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Gulick, Virginia C.
(Arizona Univ. Tucson, United States)
Parker, Timothy J.
(JPL Pasadena, CA, United States)
Date Acquired
August 16, 2013
Publication Date
March 1, 1993
Publication Information
Publication: Icarus
Volume: 102
Issue: 1
ISSN: 0019-1035
Subject Category
Lunar And Planetary Exploration
Accession Number
Funding Number(s)
Distribution Limits

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