The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.
Chemical composition of Martian fines
Abstract
Of the 21 samples acquired for the Viking X ray fluorescence spectrometer, 17 were analyzed to high precision. Compared to typical terrestrial continental soils and lunar mare fines, the Martian fines are lower in Al, higher in Fe, and much higher in S and Cl concentrations. Protected fines at the two lander sites are almost indistinguishable, but concentration of the element S is somewhat higher at Utopia. Duricrust fragments, successfully acquired only at the Chryse site, invariably contained about 50% higher S than fines. No elements correlate positively with S, except Cl and possibly Mg. A sympathetic variation is found among the triad Si, Al, Ca; positive correlation occurs between Ti and Fe. Sample variabilities are as great within a few meters as between lander locations (4500 km apart), implying the existence of a universal Martian regolith component of constant average composition. The nature of the source materials for the regolith fines must be mafic to ultramafic.
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“Martian dust of almost uniform composition on the basis of Viking and Pathfinder results [Clark e! al., 1982; Rieder et al., 1997].”
From A chemical model for evaporites on early Mars: Possible sedimentary tracers of the early climate and implications for exploration (1999) · cites this paper as Clark et al., 1982
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Cites
Physical properties of the particles composing the Martian dust storm of 1971–1972
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Geochemical and mineralogical interpretation of the Viking inorganic chemical results
Toulmin, P., Baird, A. K., Clark, B. C., Keil, K., Rose, H. J., Christian, R. P., Evans, P. H., & Kelliher, W. C. (1977) · Journal of Geophysical Research Atmospheres · doi:10.1029/js082i028p04625 · Cited by 373
Self-citationClark, B. (1981) · Icarus · doi:10.1016/0019-1035(81)90041-5 · Cited by 344
Self-citationHydrothermal alteration of impact melt sheets with implications for Mars
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Inorganic Analyses of Martian Surface Samples at the Viking Landing Sites
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Self-citationMars surface composition from reflectance spectroscopy: A summary
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The geology of the Viking Lander 2 site
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Self-citationMineralogic and Petrologic Implications of Viking Geochemical Results From Mars: Interim Report
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Self-citationFormation and deposition of volcanic sulfate aerosols on Mars
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Self-citationHydrothermally altered impact melt rock and breccia: Contributions to the soil of Mars
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Implications of abundant hygroscopic minerals in the Martian regolith
Clark, B. C. (1978) · Icarus · doi:10.1016/0019-1035(78)90052-0 · Cited by 99
Self-citationMars: Components of infrared spectra and the composition of the dust cloud
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On the original igneous source of Martian fines
Baird, A. K., & Clark, B. C. (1981) · Icarus · doi:10.1016/0019-1035(81)90009-9 · Cited by 66
Self-citationThe Viking X Ray Fluorescence Experiment: Sampling strategies and laboratory simulations
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Self-citationWeathering of Mars: Antarctic analog studies
Berkley, J. L., & DRAKE, M. J. (1981) · Icarus · doi:10.1016/0019-1035(81)90016-6 · Cited by 39
Spectral properties (0.40 to 0.75 microns) of soils exposed at the Viking 1 landing site
GUINNESS, E. A. (1981) · Journal of Geophysical Research Atmospheres · doi:10.1029/jb086ib09p07983 · Cited by 31
Inorganic chemical investigation by x-ray fluorescence analysis: The Viking Mars Lander
Toulmin, P., Baird, A. K., Clark, B. C., Keil, K., & Rose, H. J. (1973) · Icarus · doi:10.1016/0019-1035(73)90048-1 · Cited by 28
Self-citationUltraminiature X-ray fluorescence spectrometer for in-situ geochemical analysis on Mars
Clark, B. C., & Baird, A. K. (1973) · Earth and Planetary Science Letters · doi:10.1016/0012-821x(73)90086-1 · Cited by 20
Self-citationTerrestrial and synthetic analogs to Martian weathering products
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Lithological evolution of the Martian regolith
Gooding, J. L. (1981) · Cited by 2
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Metadata
- Authors
- Clark, B. C., Baird, A. K., Weldon, R. J., Tsusaki, D. M., Schnabel, L., & Candelaria, M. P.
- Affiliations
- Martin Marietta (United States) (US)
- Pomona College (US)
- Venue
- Journal of Geophysical Research: Solid Earth
- Publisher
- American Geophysical Union (AGU)
- Published
- 1982-01
- Volume
- 87
- Issue
- B12
- Pages
- 10059-10067
- ISSN
- 0148-0227 (ISSN-L)
- OpenAlex
- W2087792793
- Cited by
- 409
- References
- 25
- Citations by year
- 2026: 8 · 2025: 13 · 2024: 6 · 2023: 9 · 2022: 15 · 2021: 10 · 2020: 3 · 2019: 7 · 2018: 8 · 2017: 5 · 2016: 3 · 2015: 9 · 2014: 14 · 2013: 18 · 2012: 8
- FWCI
- 3.01
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Geophysical Research Atmospheres (publishedVersion)
- 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
- Martian regolith, chemical composition, Viking landers, X-ray fluorescence, sulfur, chlorine, iron, aluminum, duricrusts, Utopia Planitia, Chryse Planitia
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