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Climate change from the mars exploration rover landing sites: from wet in the noachian to dry and desiccating since the hesperian
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Crumpler, L. S. Arvidson, R. E. Greeley, R. Grant, J. A. Golombek, M. P. |
| Copyright Year | 2005 |
| Description | Mars Exploration Rover Opportunity discovered sedimentary dirty evaporites in Meridiani Planum that were deposited in salt-water playas or sabkhas in the Noachian, roughly coeval with a variety of geomorphic indicators (valley networks, degraded craters and highly eroded terrain) of a possible early warmer and wetter environment. In contrast, the cratered plains of Gusev that Spirit has traversed (exclusive of the Columbia Hills) have been dominated by impact and eolian processes and a gradation history that argues for a dry and desiccating environment since the Late Hesperian. This paper reviews the surficial geology and gradation history of the plains in Gusev crater as observed along the traverse by Spirit that supports this climate change from the two landing sites on Mars. |
| File Size | 153917 |
| Page Count | 2 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20050169492 |
| Archival Resource Key | ark:/13960/t37131f9v |
| Language | English |
| Publisher Date | 2005-01-01 |
| Access Restriction | Open |
| Subject Keyword | Lunar And Planetary Science And Exploration Water Climate Change Landing Sites Structural Basins Terrain Playas Mars Craters Mars Surface Mineral Deposits Mars Exploration Mars Roving Vehicles Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
