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Cited by 351

The DOI matches its Crossref record; 76 of the 76 references it cites were found in a registry or an index.

Concentration of H, Si, Cl, K, Fe, and Th in the low‐ and mid‐latitude regions of Mars

Boynton, W. V., Taylor, G. J., Evans, L. G., Reedy, R. C., Starr, R., Janes, D. M., Kerry, K. E., Drake, D. M., Kim, K. J., Williams, R. M. S., Crombie, M. K., Dohm, J. M., Baker, V., Metzger, A. E., Karunatillake, S., Keller, J. M., Newsom, H. E., Arnold, J. R., Brückner, J., Englert, P. A. J., Gasnault, O., Sprague, A. L., Mitrofanov, I., Squyres, S. W., Trombka, J. I., d'Uston, L., Wänke, H., Hamara, D. K.·2007·Journal of Geophysical Research: Planets

Abstract

We report maps of the concentrations of H, Si, Cl, K, Fe, and Th as determined by the Gamma Ray Spectrometer (GRS) on board the 2001 Mars Odyssey Mission for ±∼45° latitudes. The procedures by which the spectra are processed to yield quantitative concentrations are described in detail. The concentrations of elements determined over the locations of the various Mars landers generally agree well with the lander values except for Fe, although the mean of the GRS Fe data agrees well with that of Martian meteorites. The water‐equivalent concentration of hydrogen by mass varies from about 1.5% to 7.5% (by mass) with the most enriched areas being near Apollinaris Patera and Arabia Terra. Cl shows a distribution similar to H over the surface except that the Cl content over Medusae Fossae is much greater than elsewhere. The map of Fe shows enrichment in the northern lowlands versus the southern highlands. Silicon shows only very modest variation over the surface with mass fractions ranging from 19% to 22% over most of the planet, though a significant depletion in Si is noted in a region west of Tharsis Montes and Olympus Mons where the Si content is as low as 18%. K and Th show a very similar pattern with depletions associated with young volcanic deposits and enrichments associated with the TES Surface Type‐2 material. It is noted that there appears to be no evidence of significant globally distributed thick dust deposits of uniform composition.

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Metadata

Authors
Boynton, W. V., Taylor, G. J., Evans, L. G., Reedy, R. C., Starr, R., Janes, D. M., Kerry, K. E., Drake, D. M., Kim, K. J., Williams, R. M. S., Crombie, M. K., Dohm, J. M., Baker, V., Metzger, A. E., Karunatillake, S., Keller, J. M., Newsom, H. E., Arnold, J. R., Brückner, J., Englert, P. A. J., Gasnault, O., Sprague, A. L., Mitrofanov, I., Squyres, S. W., Trombka, J. I., d'Uston, L., Wänke, H., & Hamara, D. K.
Venue
Journal of Geophysical Research: Planets
Published
2007-12
Volume
112
Issue
E12
ISSN
0148-0227 (ISSN-L)
OpenAlex
W2034754132
Cited by
351
References
76
FWCI
8.66
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Concentration of H, Si, Cl, K, Fe, and Th in the low‐ and mid‐latitude regions of Mars. https://app.cochat.ai/papers/10.1029/2007je002887
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Boynton, W. V., Taylor, G. J., Evans, L. G., Reedy, R. C., Starr, R., Janes, D. M., Kerry, K. E., Drake, D. M., Kim, K. J., Williams, R. M. S., Crombie, M. K., Dohm, J. M., Baker, V., Metzger, A. E., Karunatillake, S., Keller, J. M., Newsom, H. E., Arnold, J. R., Brückner, J., . . . Hamara, D. K. (2007). Concentration of H, Si, Cl, K, Fe, and Th in the low‐ and mid‐latitude regions of Mars. Journal of Geophysical Research: Planets. https://doi.org/10.1029/2007je002887

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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