NDLI: An east to west mineralogical trend in mars exploration rover spirit moessbauer spectra of home plate

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An east to west mineralogical trend in mars exploration rover spirit moessbauer spectra of home plate

Content Provider	NASA Technical Reports Server (NTRS)
Author	Li, R. Schroder, C. Morris, R. V. Di, K. Klingelhofer, G.
Copyright Year	2008
Description	Home Plate is a light-toned plateau approx.90 m in diameter within the Inner Basin of the Columbia Hills in Gusev crater on Mars. It is the most extensive exposure of layered bedrock encountered by Spirit to date, and it is composed of clastic rocks of moderately altered alkali basalt composition, enriched in some highly volatile elements. Textural observations suggest an explosive origin and geochemical observations favor volcanism, probably a hydrovolcanic explosion [1]. Since it first arrived at Home Plate on sol 744, Spirit has circumnavigated the plateau (Fig. 1) and is now, since sol 1410, resting at its Winter Haven 3 location at the north end of Home Plate. Results: The MER Moessbauer spectrometers determine Fe oxidation states, identify Fe-bearing mineral phases and quantify the distribution of Fe among oxidation states and mineral phases [2]. Moessbauer spectra of Home Plate bedrock were obtained in five different locations from nine different targets (Fig. 1): Barnhill Ace, Posey Manager, and James Cool Papa Bell Stars at the northwest side of Home Plate; Pesapallo, June Emerson, and Elizabeth Emery on the east side; Texas Chili on the south side; Pecan Pie on the west side; and Chanute on the north side.
File Size	195672
Page Count	2
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20080009717
Archival Resource Key	ark:/13960/t19k99s1n
Language	English
Publisher Date	2008-01-01
Access Restriction	Open
Subject Keyword	Lunar And Planetary Science And Exploration Sedimentary Rocks Mars Craters Mineralogy Geochemistry Volcanology Explosions Targets Exposure Mossbauer Effect Plateaus Mars Exploration Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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