Canali‐type channels on Venus: Some genetic constraints

Goro Komatsu, Jeffrey S. Kargel, Victor R. Baker

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

Canali‐type channels on Venus are unique because of their great lengths (up to 6800 km) and nearly constant channel cross sectional shapes along their paths. A simple model incorporating channel flow and radiative cooling suggests that common terrestrial‐type tholeiite lava cannot sustain a superheated and turbulent state for the long distances required for thermal erosion of canali within allowable discharge rates. If canali formed mainly by constructional processes, laminar tholeiitic flows of relatively high, sustained discharge rates might travel the observed distances, but the absence of levees would need to be explained. An exotic low temperature, low viscosity lava like carbonatite or sulfur seems to be required for the erosional genesis of canali.

Original languageEnglish (US)
Pages (from-to)1415-1418
Number of pages4
JournalGeophysical Research Letters
Volume19
Issue number13
DOIs
StatePublished - Jul 6 1992

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

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