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Active boulder movement at high Martian latitudes

May 28, 2019

Lobate stony landforms occur on steep slopes at high latitudes on Mars. We demonstrate active boulder movement at seven such sites. Sub-meter-scale boulders frequently move distances of a few meters. The movement is concentrated in the vicinity of the lobate landforms but also occurs on other slopes. This provides evidence for a new, common style of activity on Mars, which may play an important role in slope degradation. It also opens the possibility that the lobate features are currently forming in the absence of significant volumes of liquid water.

Citation Information

Publication Year 2019
Title Active boulder movement at high Martian latitudes
DOI 10.1029/2019GL082293
Authors Colin M. Dundas, Michael T. Mellon, Susan J. Conway, Renaldo Gastineau
Publication Type Article
Publication Subtype Journal Article
Series Title Geophysical Research Letters
Index ID 70203908
Record Source USGS Publications Warehouse
USGS Organization Astrogeology Science Center