3D reconstruction of the source and scale of buried young flood channels on mars

Gareth A. Morgan, Bruce A. Campbell, Lynn M. Carter, Jeffrey J. Plaut, Roger J. Phillips

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

Outflow channels on Mars are interpreted as the product of gigantic floods due to the catastrophic eruption of groundwater that may also have initiated episodes of climate change. Marte Vallis, the largest of the young martian outflow channels (<500 million years old), is embayed by lava flows that hinder detailed studies and comparisons with older channel systems. Understanding Marte Vallis is essential to our assessment of recent Mars hydrologic activity during a period otherwise considered to be cold and dry. Using data from the Shallow Radar sounder on the Mars Reconnaissance Orbiter, we present a three-dimensional (3D) reconstruction of buried channels on Mars and provide estimates of paleohydrologic parameters. Our work shows that Cerberus Fossae provided the waters that carved Marte Vallis, and it extended an additional 180 kilometers to the east before the emplacement of the younger lava flows. We identified two stages of channel incision and determined that channel depths were more than twice those of previous estimates.

Original languageEnglish (US)
Pages (from-to)607-610
Number of pages4
JournalScience
Volume340
Issue number6132
DOIs
StatePublished - 2013
Externally publishedYes

ASJC Scopus subject areas

  • General

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