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Mendeley readers
Attention Score in Context
| Title |
Phyllosilicate Diversity and Past Aqueous Activity Revealed at Mawrth Vallis, Mars
|
|---|---|
| Published in |
Science, August 2008
|
| DOI | 10.1126/science.1159699 |
| Pubmed ID | |
| Authors |
Janice L. Bishop, Eldar Z. Noe Dobrea, Nancy K. McKeown, Mario Parente, Bethany L. Ehlmann, Joseph R. Michalski, Ralph E. Milliken, Francois Poulet, Gregg A. Swayze, John F. Mustard, Scott L. Murchie, Jean-Pierre Bibring |
| Abstract |
Observations by the Mars Reconnaissance Orbiter/Compact Reconnaissance Imaging Spectrometer for Mars in the Mawrth Vallis region show several phyllosilicate species, indicating a wide range of past aqueous activity. Iron/magnesium (Fe/Mg)-smectite is observed in light-toned outcrops that probably formed via aqueous alteration of basalt of the ancient cratered terrain. This unit is overlain by rocks rich in hydrated silica, montmorillonite, and kaolinite that may have formed via subsequent leaching of Fe and Mg through extended aqueous events or a change in aqueous chemistry. A spectral feature attributed to an Fe2+ phase is present in many locations in the Mawrth Vallis region at the transition from Fe/Mg-smectite to aluminum/silicon (Al/Si)-rich units. Fe2+-bearing materials in terrestrial sediments are typically associated with microorganisms or changes in pH or cations and could be explained here by hydrothermal activity. The stratigraphy of Fe/Mg-smectite overlain by a ferrous phase, hydrated silica, and then Al-phyllosilicates implies a complex aqueous history. |
Mendeley readers
The data shown below were compiled from readership statistics for 169 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | <1% |
| Germany | 1 | <1% |
| Unknown | 167 | 99% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 47 | 28% |
| Researcher | 44 | 26% |
| Student > Master | 13 | 8% |
| Student > Bachelor | 11 | 7% |
| Professor > Associate Professor | 9 | 5% |
| Other | 21 | 12% |
| Unknown | 24 | 14% |
| Readers by discipline | Count | As % |
|---|---|---|
| Earth and Planetary Sciences | 94 | 56% |
| Physics and Astronomy | 24 | 14% |
| Unspecified | 6 | 4% |
| Agricultural and Biological Sciences | 6 | 4% |
| Chemistry | 4 | 2% |
| Other | 10 | 6% |
| Unknown | 25 | 15% |
Attention Score in Context
This research output has an Altmetric Attention Score of 12. 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 21 September 2023.
All research outputs
#2,564,122
of 23,509,253 outputs
Outputs from Science
#30,336
of 78,631 outputs
Outputs of similar age
#7,248
of 84,543 outputs
Outputs of similar age from Science
#129
of 343 outputs
Altmetric has tracked 23,509,253 research outputs across all sources so far. Compared to these this one has done well and is in the 88th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 78,631 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 63.3. This one has gotten more attention than average, scoring higher than 60% 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 84,543 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 90% of its contemporaries.
We're also able to compare this research output to 343 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 61% of its contemporaries.