Meter-scale morphology of the north polar region of mars

K. E. Herkenhoff, S. Byrne, P. S. Russell, K. E. Fishbaugh, A. S. McEwen

Research output: Contribution to journalArticlepeer-review

73 Scopus citations

Abstract

Mars' north pole is covered by a dome of layered ice deposits. Detailed (∼30 centimeters per pixel) images of this region were obtained with the High-Resolution Imaging Science Experiment on board the Mars Reconnaissance Orbiter (MRO). Planum Boreum basal unit scarps reveal cross-bedding and show evidence for recent mass wasting, flow, and debris accumulation. The north polar layers themselves are as thin as 10 centimeters but appear to be covered by a dusty veneer in places, which may obscure thinner layers. Repetition of particular layer types implies that quasi-periodic climate changes influenced the stratigraphic sequence in the polar layered deposits, informing models for recent climate variations on Mars.

Original languageEnglish (US)
Pages (from-to)1711-1715
Number of pages5
JournalScience
Volume317
Issue number5845
DOIs
StatePublished - Sep 21 2007

ASJC Scopus subject areas

  • General

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