System of gigantic valleys northwest of Tharsis, Mars: Latent catastrophic flooding, northwest watershed, and implications for northern plains ocean

J. M. Dohm, R. C. Anderson, V. R. Baker, J. C. Ferris, T. M. Hare, R. G. Strom, L. P. Rudd, J. W. Rice, R. R. Casavant, D. H. Scott

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Mars Orbiter Laser Altimeter (MOLA) reveals a system of gigantic valleys to the northwest of the huge martian shield volcano, Arsia Mons, in the western hemisphere of Mars. These newly identified northwestern slope valleys (NSVs) potentially signify previously undocumented martian catastrophic floods and may corroborate the northern ocean hypotheses. These features, which generally correspond spatially to gravity lows, were previously obscurred in Mariner and Viking Orbiter imagery by veneers of materials, including volcanic lava flows and air fall deposits. Geologic investigations of the Tharsis region suggest that the NSVs were mainly carved prior to the construction of Arsia Mons and its associated Late Hesperian and Amazonian age lava flows, concurrent with the early development of the outflow channels that debouch into Chryse Planitia.

Original languageEnglish (US)
Pages (from-to)3559-3562
Number of pages4
JournalGeophysical Research Letters
Volume27
Issue number21
DOIs
StatePublished - Nov 1 2000

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

Fingerprint Dive into the research topics of 'System of gigantic valleys northwest of Tharsis, Mars: Latent catastrophic flooding, northwest watershed, and implications for northern plains ocean'. Together they form a unique fingerprint.

Cite this