CoChat
Sign Up
Cited by 607Planetary Science and ExplorationAstro and Planetary ScienceGeochemistry and Elemental Analysis

The Chemical Composition of Martian Soil and Rocks Returned by the Mobile Alpha Proton X-ray Spectrometer: Preliminary Results from the X-ray Mode

Rieder, R., Economou, T., Wänke, H., Turkevich, A., Crisp, J., Brückner, J., Dreibus, G., McSween, H. Y.·1997·Science
DOI 10.1126/science.278.5344.1771
Open this paper in CoChat — free account

Abstract

The alpha proton x-ray spectrometer (APXS) on board the rover of the Mars Pathfinder mission measured the chemical composition of six soils and five rocks at the Ares Vallis landing site. The soil analyses show similarity to those determined by the Viking missions. The analyzed rocks were partially covered by dust but otherwise compositionally similar to each other. They are unexpectedly high in silica and potassium, but low in magnesium compared to martian soils and martian meteorites. The analyzed rocks are similar in composition to terrestrial andesites and close to the mean composition of Earth's crust. Addition of a mafic component and reaction products of volcanic gases to the local rock material is necessary to explain the soil composition.

Integrity signals

Registry

Crossref · 10.1126/science.278.5344.1771

Cites

1 of 1 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Martian dust is of almost uniform composition on the basis of Viking and Pathfinder results.

    “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 Rieder et al., 1997

  • Perchlorate salts are hypothesized to be present over the entire surface of Mars due to atmospheric circulation and wind transport of sediments.

    “With atmospheric circulation and wind transport of sediments, perchlorate salts are hypothesized to be present over the entire surface of Mars [16][17][18].”

    From Perchlorate and Agriculture on Mars (2021) · cites this paper as [16]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Rieder, R., Economou, T., Wänke, H., Turkevich, A., Crisp, J., Brückner, J., Dreibus, G., & McSween, H. Y.
Affiliations
  • California Institute of Technology (US)
  • R. Rieder, H. Wänke, J. Brückner, G. Dreibus, Max-Planck-Institut für Chemie, P.O. Box 3060, D-55020 Mainz, Germany.
ORCID
Venue
Science
Publisher
American Association for the Advancement of Science (AAAS)
Published
1997-12-05
Volume
278
Issue
5344
Pages
1771-1774
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
DOI
10.1126/science.278.5344.1771
OpenAlex
W1982898366
Cited by
607
References
1
Citations by year
2026: 4 · 2025: 14 · 2024: 17 · 2023: 10 · 2022: 15 · 2021: 13 · 2020: 18 · 2019: 9 · 2018: 14 · 2017: 9 · 2016: 74 · 2015: 11 · 2014: 7 · 2013: 10 · 2012: 15
FWCI
31.62
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Planetary Science and Exploration
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
Keywords
Martian soil, Martian rocks, chemical composition, Mars Pathfinder, Ares Vallis, silica, potassium, magnesium, andesite, Earth's crust, volcanic gases, Martian meteorites
MeSH terms
Aluminum, Extraterrestrial Environment, Iron, Magnesium, Oxides, Potassium, Silicon Dioxide, Mars, Geologic Sediments, Meteoroids

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review