ChemCam results from the Shaler Outcrop in Gale Crater, Mars

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The "Shaler" outcrop in Gale crater is approximately 0.7 m thick and >20 m long, and exhibits multiple well-exposed platy and cross-stratified facies [1] interpreted to be primarily fluvial sandstone deposits. The outcrop is a part of the upper Glenelg member in the Yellowknife Bay (YKB) stratigraphic section [2]. Curiosity first encountered the "Shaler" outcrop on sol 121 of the mission, and returned to the outcrop on sols 309- 324.
The rugged nature of the outcrop and short time available for analysis limited opportunities for contact science, but ChemCam’s ability to remotely collect compositional and textural observations resulted in a large data set from Shaler. ChemCam conducted analyses of 29 non-soil targets at Shaler, 26 of which used laser-induced breakdown spectroscopy (LIBS) for a total of 9,180 spectra. Three observations used only the remote micro-imager (RMI). Each of the 26 LIBS targets were analyzed at between 5 and 25 points, providing a measure of the target homogeneity and in some cases transecting fine strata. 

Additional publication details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
ChemCam results from the Shaler Outcrop in Gale Crater, Mars
Year Published:
Lunar and Planetary Institute
Contributing office(s):
Astrogeology Science Center
2 p.
Larger Work Type:
Larger Work Subtype:
Conference publication
Larger Work Title:
45th Lunar and Planetary Science Conference
Other Geospatial:
Gale crater, Mars