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Influence of Fault-Controlled Topography on Fluvio-Deltaic Sedimentary Systems in Eberswalde Crater, MarsEberswalde crater was selected as a candidate landing site for the Mars Science Laboratory (MSL) mission based on the presence of a fan-shaped sedimentary deposit interpreted as a delta. We have identified and mapped five other candidate fluvio -deltaic systems in the crater, using images and digital terrain models (DTMs) derived from the Mars Reconnaissance Orbiter (MRO) High Resolution Imaging Science Experiment (HiRISE) and Context Camera (CTX). All of these systems consist of the same three stratigraphic units: (1) an upper layered unit, conformable with (2) a subpolygonally fractured unit, unconformably overlying (3) a pitted unit. We have also mapped a system of NNE-trending scarps interpreted as dip-slip faults that pre-date the fluvial -lacustrine deposits. The post-impact regional faulting may have generated the large-scale topography within the crater, which consists of a Western Basin, an Eastern Basin, and a central high. This topography subsequently provided depositional sinks for sediment entering the crater and controlled the geomorphic pattern of delta development.
Document ID
20130013619
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Rice, Melissa S. (Cornell Univ. Ithaca, NY, United States)
Gupta, Sanjeev (Imperial Coll. of London London, United Kingdom)
Bell, James F., III (Arizona State Univ. Tempe, AZ, United States)
Warner, Nicholas H. (Imperial Coll. of London London, United Kingdom)
Date Acquired
August 27, 2013
Publication Date
August 1, 2011
Publication Information
Publication: Geophysical Research Letters
Volume: 38
Subject Category
Lunar and Planetary Science and Exploration
Funding Number(s)
CONTRACT_GRANT: NNX11AE66G
Distribution Limits
Public
Copyright
Other