Buhler, Peter B. and Fassett, Caleb I. and Head, James W., III and Lamb, Michael P. (2011) Evidence for paleolakes in Erythraea Fossa, Mars: Implications for an ancient hydrological cycle. Icarus, 213 (1). pp. 104-115. ISSN 0019-1035 http://resolver.caltech.edu/CaltechAUTHORS:20110526-111454282
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There is now widespread agreement that the surface of Mars underwent some degree of fluvial modification, but there is not yet full understanding of its surface hydrological cycle and the nature of standing bodies of water, rivers, and precipitation that affected its surface. In this paper we explore Erythraea Fossa (31.5 W, 27.3 S), a graben adjacent to Holden crater, which exhibits strong evidence that it once housed a chain of three lakes, had overland water flow, and was subject to precipitation. The inlet valley, outlet valley, and fan morphologies in the paleolakes are used to qualitatively discern the hydrologic history of the paleolakes; based on topography constraints, the three basins combined once held 56 km^3 of water. Depositional features within the basins that change with drainage area and nearby valleys that start near drainage divides indicate that the paleolakes may have been fed by precipitation driven runoff. This suggests the presence of an atmosphere, at least locally, that was capable of supporting a hydrological cycle.
|Additional Information:||© 2011 Elsevier Inc. Received 27 August 2010. Revised 4 February 2011. Accepted 1 March 2011. Available online 12 March 2011. Buhler thanks Brown University and the Summer Undergraduate Research Fellowship program (Richter Scholarship) at the California Institute of Technology for financial support for this research. JWH gratefully acknowledges financial support as part of the NASA/ESA participation in the Mars Express High-Resolution Stereo Camera Team under JPL Grant 1237163, and the Mars Data Analysis Program, MDAP Grant NNX09A146G. Reviews from Paul McKay and technical help from and informative discussions with Ailish Kress, Laura Kerber, Jennifer Griffes, and Debra Hurwitz are greatly appreciated. We also extend our gratitude to Jules Goldspiel and Rebecca Williams for their insightful reviews that increased the quality of this paper.|
|Subject Keywords:||Mars; Mars, Surface; Mars, Climate; Geological processes|
|Official Citation:||Peter B. Buhler, Caleb I. Fassett, James W. Head III, Michael P. Lamb, Evidence for paleolakes in Erythraea Fossa, Mars: Implications for an ancient hydrological cycle, Icarus, Volume 213, Issue 1, May 2011, Pages 104-115, ISSN 0019-1035, DOI: 10.1016/j.icarus.2011.03.004. (http://www.sciencedirect.com/science/article/pii/S0019103511000881)|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||26 May 2011 18:36|
|Last Modified:||26 May 2011 18:37|
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