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Mineralogy of the Martian Surface
Open accessAbstract
The past fifteen years of orbital infrared spectroscopy and in situ exploration have led to a new understanding of the composition and history of Mars. Globally, Mars has a basaltic upper crust with regionally variable quantities of plagioclase, pyroxene, and olivine associated with distinctive terrains. Enrichments in olivine (>20%) are found around the largest basins and within late Noachian–early Hesperian lavas. Alkali volcanics are also locally present, pointing to regional differences in igneous processes. Many materials from ancient Mars bear the mineralogic fingerprints of interaction with water. Clay minerals, found in exposures of Noachian crust across the globe, preserve widespread evidence for early weathering, hydrothermal, and diagenetic aqueous environments. Noachian and Hesperian sediments include paleolake deposits with clays, carbonates, sulfates, and chlorides that are more localized in extent. The late Hesperian to Amazonian mineralogic record of water is sparser, though sulfates and silica in some locations indicate local availability of ground and surface waters even in the most recent geologic epoch.
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“The martian surface is sulfur-rich (Clark et al. 1976) and sulphates are abundant on Hesperian and Noachian terrain (Gendrin et al. 2005; Bibring et al. 2005; Ehlmann & Edwards 2014).”
From The Climate of Early Mars (2016) · cites this paper as Ehlmann & Edwards 2014
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“One mineral, carbonate, is conspicuous by its low abundance on the Martian surface (Niles et al. 2013; Ehlmann & Edwards 2014).”
From The Climate of Early Mars (2016) · cites this paper as Ehlmann & Edwards 2014
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“Indeed, our areas of spatially clustered carbonates in western Noachis Terra and the circum-Isidis/Terra Tyrrhena region loosely correlate with clusters of olivine exposures [e.g., Ehlmann and Edwards, 2014, Figure 2a], although a concentration specifically surrounding Huygens basin northwest of Hellas is not observed.”
From Orbital evidence for more widespread carbonate-bearing rocks on Mars (2016) · cites this paper as Ehlmann and Edwards, 2014
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Cites
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Self-citationSubsurface water and clay mineral formation during the early history of Mars
Ehlmann, B. L., Mustard, J. F., Murchie, S. L., Bibring, J.-P., Meunier, A., Fraeman, A. A., & Langevin, Y. (2011) · Nature · doi:10.1038/nature10582 · Cited by 868
Self-citationHydrated silicate minerals on Mars observed by the Mars Reconnaissance Orbiter CRISM instrument
Mustard, J. F., Murchie, S. L., Pelkey, S. M., Ehlmann, B. L., Milliken, R. E., Grant, J. A., Bibring, J.-P., Poulet, F., Bishop, J., Dobrea, E. N., et al. (2008) · Nature · doi:10.1038/nature07097 · Cited by 794
Self-citationOrbital Identification of Carbonate-Bearing Rocks on Mars
Ehlmann, B. L., Mustard, J. F., Murchie, S. L., Poulet, F., Bishop, J. L., Brown, A. J., Calvin, W. M., Clark, R. N., Marais, D. J. D., Milliken, R. E., et al. (2008) · Science · doi:10.1126/science.1164759 · Cited by 713
Self-citationIdentification of Carbonate-Rich Outcrops on Mars by the Spirit Rover
Morris, R. V., Ruff, S. W., Gellert, R., Ming, D. W., Arvidson, R. E., Clark, B. C., Golden, D. C., Siebach, K., Klingelhöfer, G., Schröder, C., et al. (2010) · Science · doi:10.1126/science.1189667 · Cited by 447 · cited 3×
“The Spirit rover also encountered Mg/Fe/Ca carbonates in the Columbia Hills Comanche outcrop, associated with rocks containing olivine and silica (Figure 1) (Morris et al. 2010).”
BackgroundClay minerals in delta deposits and organic preservation potential on Mars
Ehlmann, B. L., Mustard, J. F., Fassett, C. I., Schon, S. C., Head III, J. W., Des Marais, D. J., Grant, J. A., & Murchie, S. L. (2008) · Nature Geoscience · doi:10.1038/ngeo207 · Cited by 401
Self-citationGeologic setting of serpentine deposits on Mars
Ehlmann, B. L., Mustard, J. F., & Murchie, S. L. (2010) · Geophysical Research Letters · doi:10.1029/2010gl042596 · Cited by 383
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Cited by
Sorted by citations
Spectral evidence for hydrated salts in recurring slope lineae on Mars
Ojha, L., Wilhelm, M. B., Murchie, S. L., McEwen, A. S., Wray, J. J., Hanley, J., Massé, M., & Chojnacki, M. (2015) · Nature Geoscience · doi:10.1038/ngeo2546 · Cited by 617
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“( One mineral, carbonate, is conspicuous by its low abundance on the Martian surface (Niles et al. 2013; Ehlmann & Edwards 2014).”
BackgroundMars in situ resource utilization: a review
Starr, S. O., & Muscatello, A. C. (2020) · Planetary and Space Science · doi:10.1016/j.pss.2019.104824 · Cited by 167
Orbital evidence for more widespread carbonate-bearing rocks on Mars
Wray, J. J., Murchie, S. L., Bishop, J. L., Ehlmann, B. L., Milliken, R. E., Wilhelm, M. B., Seelos, K. D., & Chojnacki, M. (2016) · Journal of Geophysical Research: Planets · doi:10.1002/2015je004972 · Cited by 161
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Self-citation
Metadata
- Authors
- Ehlmann, B. L., & Edwards, C. S.
- Affiliations
- California Institute of Technology (US)
- Venue
- Annual Review of Earth and Planetary Sciences
- Publisher
- Annual Reviews
- Published
- 2014-05-30
- Volume
- 42
- Issue
- 1
- Pages
- 291-315
- ISSN
- 0084-6597 (ISSN-L)
- 1545-4495
- OpenAlex
- W2102920959
- Cited by
- 761
- References
- 13
- Citations by year
- 2026: 78 · 2025: 102 · 2024: 69 · 2023: 66 · 2022: 65 · 2021: 89 · 2020: 70 · 2019: 90 · 2018: 48 · 2017: 29 · 2016: 35 · 2015: 12 · 2014: 6
- FWCI
- 1.68
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Annual Review of Earth and Planetary Sciences (publishedVersion)
- CaltechAUTHORS (California Institute of Technology) (submittedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Space and Planetary Science › Planetary Science and Exploration
- Physical Sciences › Earth and Planetary Sciences › Space and Planetary Science › Astro and Planetary Science
- Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
- Keywords
- Mars mineralogy, Mars surface composition, basaltic crust, plagioclase, pyroxene, clay minerals, aqueous alteration, paleolakes, carbonates, sulfate, chloride, Noachian, Hesperian, Amazonian
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