The geologic history of Margaritifer basin, Mars
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Abstract
In this study, we investigate the fluvial, sedimentary, and volcanic history of Margaritifer basin and the Uzboi-Ladon-Morava (ULM) outflow channel system. This network of valleys and basins spans more than 8000 km in length, linking the fluvially dissected southern highlands and Argyre Basin with the northern lowlands via Ares Vallis. Compositionally, thermophysically, and morphologically distinct geologic units are identified and are used to place critical relative stratigraphic constraints on the timing of geologic processes in Margaritifer basin. Our analyses show that fluvial activity was separated in time by significant episodes of geologic activity, including the widespread volcanic resurfacing of Margaritifer basin and the formation of chaos terrain. The most recent fluvial activity within Margaritifer basin appears to terminate at a region of chaos terrain, suggesting possible communication between surface and subsurface water reservoirs. We conclude with a discussion of the implications of these observations on our current knowledge of Martian hydrologic evolution in this important region.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | The geologic history of Margaritifer basin, Mars |
| Series title | Journal of Geophysical Research E: Planets |
| DOI | 10.1002/2015JE004938 |
| Volume | 121 |
| Issue | 3 |
| Year Published | 2016 |
| Language | English |
| Publisher | American Geophysical Union |
| Contributing office(s) | Astrogeology Science Center |
| Description | 23 p. |
| First page | 273 |
| Last page | 295 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |