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Orbital Identification of Carbonate-Bearing Rocks on Mars

Overview of attention for article published in Science, December 2008
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (96th percentile)
  • Good Attention Score compared to outputs of the same age and source (74th percentile)

Mentioned by

3 news outlets
1 blog
1 policy source
1 Facebook page
7 Wikipedia pages


450 Dimensions

Readers on

264 Mendeley
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Orbital Identification of Carbonate-Bearing Rocks on Mars
Published in
Science, December 2008
DOI 10.1126/science.1164759
Pubmed ID

Bethany L. Ehlmann, John F. Mustard, Scott L. Murchie, Francois Poulet, Janice L. Bishop, Adrian J. Brown, Wendy M. Calvin, Roger N. Clark, David J. Des Marais, Ralph E. Milliken, Leah H. Roach, Ted L. Roush, Gregg A. Swayze, James J. Wray


Geochemical models for Mars predict carbonate formation during aqueous alteration. Carbonate-bearing rocks had not previously been detected on Mars' surface, but Mars Reconnaissance Orbiter mapping reveals a regional rock layer with near-infrared spectral characteristics that are consistent with the presence of magnesium carbonate in the Nili Fossae region. The carbonate is closely associated with both phyllosilicate-bearing and olivine-rich rock units and probably formed during the Noachian or early Hesperian era from the alteration of olivine by either hydrothermal fluids or near-surface water. The presence of carbonate as well as accompanying clays suggests that waters were neutral to alkaline at the time of its formation and that acidic weathering, proposed to be characteristic of Hesperian Mars, did not destroy these carbonates and thus did not dominate all aqueous environments.

Mendeley readers

The data shown below were compiled from readership statistics for 264 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 7 3%
Germany 2 <1%
Italy 1 <1%
France 1 <1%
Canada 1 <1%
Mexico 1 <1%
Belgium 1 <1%
United Kingdom 1 <1%
Unknown 249 94%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 71 27%
Researcher 67 25%
Student > Master 31 12%
Student > Bachelor 27 10%
Professor > Associate Professor 15 6%
Other 30 11%
Unknown 23 9%
Readers by discipline Count As %
Earth and Planetary Sciences 141 53%
Physics and Astronomy 38 14%
Agricultural and Biological Sciences 17 6%
Engineering 9 3%
Chemistry 8 3%
Other 17 6%
Unknown 34 13%

Attention Score in Context

This research output has an Altmetric Attention Score of 37. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 25 October 2021.
All research outputs
of 19,486,479 outputs
Outputs from Science
of 74,293 outputs
Outputs of similar age
of 263,919 outputs
Outputs of similar age from Science
of 731 outputs
Altmetric has tracked 19,486,479 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 96th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 74,293 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 58.1. This one has done well, scoring higher than 78% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 263,919 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 96% of its contemporaries.
We're also able to compare this research output to 731 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 74% of its contemporaries.