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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Evidence for the late formation of hydrous asteroids from young meteoritic carbonates
|
|---|---|
| Published in |
Nature Communications, January 2012
|
| DOI | 10.1038/ncomms1635 |
| Pubmed ID | |
| Authors |
Wataru Fujiya, Naoji Sugiura, Hideyuki Hotta, Koji Ichimura, Yuji Sano |
| Abstract |
The accretion of small bodies in the Solar System is a fundamental process that was followed by planet formation. Chronological information of meteorites can constrain when asteroids formed. Secondary carbonates show extremely old (53)Mn-(53)Cr radiometric ages, indicating that some hydrous asteroids accreted rapidly. However, previous studies have failed to define accurate Mn/Cr ratios; hence, these old ages could be artefacts. Here we develop a new method for accurate Mn/Cr determination, and report a reliable age of 4,563.4+0.4/-0.5 million years ago for carbonates in carbonaceous chondrites. We find that these carbonates have identical ages, which are younger than those previously estimated. This result suggests the late onset of aqueous activities in the Solar System. The young carbonate age cannot be explained if the parent asteroid accreted within 3 million years after the birth of the Solar System. Thus, we conclude that hydrous asteroids accreted later than differentiated and metamorphosed asteroids. |
X Demographics
The data shown below were collected from the profiles of 10 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Japan | 3 | 30% |
| United Kingdom | 1 | 10% |
| Mexico | 1 | 10% |
| Unknown | 5 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 9 | 90% |
| Scientists | 1 | 10% |
Mendeley readers
The data shown below were compiled from readership statistics for 65 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 2 | 3% |
| Unknown | 63 | 97% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 19 | 29% |
| Researcher | 12 | 18% |
| Student > Master | 11 | 17% |
| Student > Bachelor | 4 | 6% |
| Professor > Associate Professor | 3 | 5% |
| Other | 5 | 8% |
| Unknown | 11 | 17% |
| Readers by discipline | Count | As % |
|---|---|---|
| Earth and Planetary Sciences | 39 | 60% |
| Physics and Astronomy | 4 | 6% |
| Materials Science | 2 | 3% |
| Environmental Science | 2 | 3% |
| Agricultural and Biological Sciences | 1 | 2% |
| Other | 1 | 2% |
| Unknown | 16 | 25% |
Attention Score in Context
This research output has an Altmetric Attention Score of 7. 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 22 June 2020.
All research outputs
#4,776,902
of 25,205,261 outputs
Outputs from Nature Communications
#36,875
of 55,741 outputs
Outputs of similar age
#38,932
of 257,895 outputs
Outputs of similar age from Nature Communications
#67
of 127 outputs
Altmetric has tracked 25,205,261 research outputs across all sources so far. Compared to these this one has done well and is in the 79th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 55,741 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 55.8. This one is in the 33rd percentile – i.e., 33% of its peers scored the same or lower than it.
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 257,895 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 83% of its contemporaries.
We're also able to compare this research output to 127 others from the same source and published within six weeks on either side of this one. This one is in the 48th percentile – i.e., 48% of its contemporaries scored the same or lower than it.