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Wind-driven Modification of Small Bedforms in Gusev Crater, Mars


Abstract ABSTRACT

The Spirit landing site in Gusev Crater has been imaged by the Mars Reconnaissance Orbiter High Resolution Imaging Science Experiment (HiRISE) camera more than thirty times since 2006. The breadth of this image set allowed a study of changes to surface features, covering four Mars years.

Small fields of bedforms comprised of dark material, and dark dust devil tracks are among the features revealed in the images. The bedforms are constrained within craters on the plains, and unconstrained in depressions less than 200m wide within the topography of the Columbia Hills, a ~120m-high structure in center of Gusev. Dust devil tracks appear in many images of the bedforms.

Within the Columbia Hills, three bedform fields approximately ... (more)
Created Date 2016
Contributor Pendleton-Hoffer, Mary C. (Author) / Christensen, Philip (Advisor) / Whipple, Kelin (Committee member) / Knauth, Paul (Committee member) / Arizona State University (Publisher)
Subject Geology / Planetology / Geomorphology / aeolian / bedforms / dust devil tracks / Mars / sand
Type Masters Thesis
Extent 58 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Masters Thesis Geological Sciences 2016
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis