Discovery of Olivine in the Nili Fossae Region of Mars

Todd M. Hoefen; Roger N. Clark; Joshua L. Bandfield; Michael D. Smith; John C. Pearl; Philip Christensen

doi:10.1126/science.1089647

Discovery of Olivine in the Nili Fossae Region of Mars

Todd M. Hoefen, Roger N. Clark, Joshua L. Bandfield, Michael D. Smith, John C. Pearl, Philip Christensen

Research output: Contribution to journal › Article › peer-review

258 Scopus citations

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 Fo₃₀ to Fo₇₀.

Original language	English (US)
Pages (from-to)	627-630
Number of pages	4
Journal	Science
Volume	302
Issue number	5645
DOIs	https://doi.org/10.1126/science.1089647
State	Published - Oct 24 2003

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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 Fo30 to Fo70.",

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AU - Clark, Roger N.

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AU - Smith, Michael D.

AU - Pearl, John C.

AU - Christensen, Philip

PY - 2003/10/24

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AB - 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 Fo30 to Fo70.

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Discovery of Olivine in the Nili Fossae Region of Mars

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