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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Ancient Aqueous Environments at Endeavour Crater, Mars
|
|---|---|
| Published in |
Science, January 2014
|
| DOI | 10.1126/science.1248097 |
| Pubmed ID | |
| Authors |
R. E. Arvidson, S. W. Squyres, J. F. Bell, J. G. Catalano, B. C. Clark, L. S. Crumpler, P. A. de Souza, A. G. Fairén, W. H. Farrand, V. K. Fox, R. Gellert, A. Ghosh, M. P. Golombek, J. P. Grotzinger, E. A. Guinness, K. E. Herkenhoff, B. L. Jolliff, A. H. Knoll, R. Li, S. M. McLennan, D. W. Ming, D. W. Mittlefehldt, J. M. Moore, R. V. Morris, S. L. Murchie, T. J. Parker, G. Paulsen, J. W. Rice, S. W. Ruff, M. D. Smith, M. J. Wolff |
| Abstract |
Opportunity has investigated in detail rocks on the rim of the Noachian age Endeavour crater, where orbital spectral reflectance signatures indicate the presence of Fe(+3)-rich smectites. The signatures are associated with fine-grained, layered rocks containing spherules of diagenetic or impact origin. The layered rocks are overlain by breccias, and both units are cut by calcium sulfate veins precipitated from fluids that circulated after the Endeavour impact. Compositional data for fractures in the layered rocks suggest formation of Al-rich smectites by aqueous leaching. Evidence is thus preserved for water-rock interactions before and after the impact, with aqueous environments of slightly acidic to circum-neutral pH that would have been more favorable for prebiotic chemistry and microorganisms than those recorded by younger sulfate-rich rocks at Meridiani Planum. |
X Demographics
The data shown below were collected from the profiles of 14 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Australia | 2 | 14% |
| United Kingdom | 2 | 14% |
| New Zealand | 1 | 7% |
| United States | 1 | 7% |
| Malaysia | 1 | 7% |
| Norway | 1 | 7% |
| Unknown | 6 | 43% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 11 | 79% |
| Scientists | 2 | 14% |
| Science communicators (journalists, bloggers, editors) | 1 | 7% |
Mendeley readers
The data shown below were compiled from readership statistics for 208 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 3 | 1% |
| Canada | 2 | <1% |
| Germany | 1 | <1% |
| Mexico | 1 | <1% |
| United Kingdom | 1 | <1% |
| Puerto Rico | 1 | <1% |
| China | 1 | <1% |
| Unknown | 198 | 95% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 63 | 30% |
| Researcher | 34 | 16% |
| Student > Master | 20 | 10% |
| Student > Bachelor | 15 | 7% |
| Professor > Associate Professor | 14 | 7% |
| Other | 37 | 18% |
| Unknown | 25 | 12% |
| Readers by discipline | Count | As % |
|---|---|---|
| Earth and Planetary Sciences | 103 | 50% |
| Physics and Astronomy | 25 | 12% |
| Agricultural and Biological Sciences | 11 | 5% |
| Chemistry | 11 | 5% |
| Engineering | 9 | 4% |
| Other | 20 | 10% |
| Unknown | 29 | 14% |
Attention Score in Context
This research output has an Altmetric Attention Score of 509. 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 29 March 2017.
All research outputs
#46,555
of 24,340,143 outputs
Outputs from Science
#1,895
of 79,648 outputs
Outputs of similar age
#357
of 315,990 outputs
Outputs of similar age from Science
#17
of 818 outputs
Altmetric has tracked 24,340,143 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 79,648 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 64.3. This one has done particularly well, scoring higher than 97% 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 315,990 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 99% of its contemporaries.
We're also able to compare this research output to 818 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 98% of its contemporaries.