Discovery of Olivine in the Nili Fossae Region of Mars
Open Access
- 24 October 2003
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 302 (5645) , 627-630
- https://doi.org/10.1126/science.1089647
Abstract
We have detected a 30,000-square-kilometer area rich in olivine in the Nili Fossae region of Mars. Nili Fossae has been interpreted as a complex of grabens and fractures related to the formation of the Isidis impact basin. We propose that post-impact faulting of this area has exposed subsurface layers rich in olivine. Linear mixture analysis of Thermal Emission Spectrometer spectra shows surface exposures of 30% olivine, where the composition of the olivine ranges from Fo 30 to Fo 70 .Keywords
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