Discordant K-Ar and young exposure dates for the Windjana sandstone, Kimberley, Gale Crater, Mars

• Published in: Journal of Geophysical Research: Planets
• Main Authors: Vasconcelos, P. M., Farley, K. A., Malespin, C. A., Mahaffy, P., Ming, D., McLennan, S. M., Hurowitz, J. A., Rice, M. S.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley-Blackwell Publishing 2016
• Subjects: 21Ne; 36Ar; 3He; K-Ar; Mars; 1104 Aquatic Science; 1107 Forestry; 1111 Soil Science; 1606 Physical and Theoretical Chemistry; 1901 Earth and Planetary Sciences (miscellaneous); 1902 Atmospheric Science; 1904 Earth-Surface Processes; 1906 Geochemistry and Petrology; 1908 Geophysics; 1910 Oceanography; 1911 Palaeontology; 1912 Space and Planetary Science; 2303 Ecology; 2312 Water Science and Technology; 2505 Materials Chemistry; 2507 Polymers and Plastics; 3104 Condensed Matter Physics; Yellowknife; Yellowknife Bay
• Online Access: https://espace.library.uq.edu.au/view/UQ:414027/UQ414027_OA.pdf; https://espace.library.uq.edu.au/view/UQ:414027

K-Ar and noble gas surface exposure age measurements were carried out on the Windjana sandstone, Kimberley region, Gale Crater, Mars, by using the Sample Analysis at Mars instrument on the Curiosity rover. The sandstone is unusually rich in sanidine, as determined by CheMin X-ray diffraction, contri...