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Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Spirit Mars Rover Mission to the Columbia Hills, Gusev Crater: Mission overview and selected results from the Cumberland Ridge to Home Plate
Author(s): Arvidson, Raymond E
Ruff, Steven W
Morris, Richard Van
Ming, Douglas Wayne
Crumpler, Larry S
Yen, Albert S
Squyres, Steven W
Sullivan, Robert J
Bell III, James F
Cabrol, Nathalie A
Clark, Benton C
Farrand, William H
Gellert, Ralf
Greenberger, Rebecca
Schröder, Christian
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Keywords: Mars Exploration Rover
Issue Date: Dec-2008
Date Deposited: 28-Oct-2013
Citation: Arvidson RE, Ruff SW, Morris RV, Ming DW, Crumpler LS, Yen AS, Squyres SW, Sullivan RJ, Bell III JF, Cabrol NA, Clark BC, Farrand WH, Gellert R, Greenberger R & Schröder C (2008) Spirit Mars Rover Mission to the Columbia Hills, Gusev Crater: Mission overview and selected results from the Cumberland Ridge to Home Plate. Journal of Geophysical Research: Planets, 113 (E12), Art. No.: E12S33.
Abstract: This paper summarizes the Spirit rover operations in the Columbia Hills of Gusev Crater from sols 513 to 1476 and provides an overview of selected findings that focus on synergistic use of the Athena Payload and comparisons to orbital data. Results include discovery of outcrops (Voltaire) on Husband Hill that are interpreted to be altered impact melt deposits that incorporated local materials during emplacement. Evidence for extensive volcanic activity and aqueous alteration in the Inner Basin is also detailed, including discovery and characterization of accretionary lapilli and formation of sulfate, silica, and hematite-rich deposits. Use of Spirit’s data to understand the range of spectral signatures observed over the Columbia Hills by the Mars Reconnaissance Orbiter’s Compact Reconnaissance Imaging Spectrometer (CRISM) hyperspectral imager (0.4–4 μm) is summarized. We show that CRISM spectra are controlled by the proportion of ferric-rich dust to ferrous-bearing igneous minerals exposed in ripples and other windblown deposits. The evidence for aqueous alteration derived from Spirit’s data is associated with outcrops that are too small to be detected from orbital observations or with materials exposed from the shallow subsurface during rover activities. Although orbital observations show many other locations on Mars with evidence for minerals formed or altered in an aqueous environment, Spirit’s data imply that the older crust of Mars has been altered even more extensively than evident from orbital data. This result greatly increases the potential that the surface or shallow subsurface was once a habitable regime.
DOI Link: 10.1029/2008JE003183
Rights: Copyright 2008 by the American Geophysical Union. AGU allows authors to deposit their journal articles if the version is the final published citable version of record, the AGU copyright statement is clearly visible on the posting, and the posting is made 6 months after official publication by the AGU.
Notes: Additional co-authors: JA Grant, EA Guinness, KE Herkenhoff, JA Hurowitz, JR Johnson, G Klingelhöfer, KW Lewis, R Li, TJ McCoy, J Moersch, HY McSween, SL Murchie, M Schmidt, A Wang, S Wiseman, MB Madsen, W Goetz, SM McLennan

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