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Mendeley readers
Attention Score in Context
| Title |
Orbitally induced oscillations in the East Antarctic ice sheet at the Oligocene/Miocene boundary
|
|---|---|
| Published in |
Nature, October 2001
|
| DOI | 10.1038/35099534 |
| Pubmed ID | |
| Authors |
Tim R. Naish, Ken J. Woolfe, Peter J. Barrett, Gary S. Wilson, Cliff Atkins, Steven M. Bohaty, Christian J. Bücker, Michele Claps, Fred J. Davey, Gavin B. Dunbar, Alistair G. Dunn, Chris R. Fielding, Fabio Florindo, Michael J. Hannah, David M. Harwood, Stuart A. Henrys, Lawrence A. Krissek, Mark Lavelle, Jaap van der Meer, William C. McIntosh, Frank Niessen, Sandra Passchier, Ross D. Powell, Andrew P. Roberts, Leonardo Sagnotti, Reed P. Scherer, C. Percy Strong, Franco Talarico, Kenneth L. Verosub, Giuliana Villa, David K. Watkins, Peter-N. Webb, Thomas Wonik |
| Abstract |
Between 34 and 15 million years (Myr) ago, when planetary temperatures were 3-4 degrees C warmer than at present and atmospheric CO2 concentrations were twice as high as today, the Antarctic ice sheets may have been unstable. Oxygen isotope records from deep-sea sediment cores suggest that during this time fluctuations in global temperatures and high-latitude continental ice volumes were influenced by orbital cycles. But it has hitherto not been possible to calibrate the inferred changes in ice volume with direct evidence for oscillations of the Antarctic ice sheets. Here we present sediment data from shallow marine cores in the western Ross Sea that exhibit well dated cyclic variations, and which link the extent of the East Antarctic ice sheet directly to orbital cycles during the Oligocene/Miocene transition (24.1-23.7 Myr ago). Three rapidly deposited glacimarine sequences are constrained to a period of less than 450 kyr by our age model, suggesting that orbital influences at the frequencies of obliquity (40 kyr) and eccentricity (125 kyr) controlled the oscillations of the ice margin at that time. An erosional hiatus covering 250 kyr provides direct evidence for a major episode of global cooling and ice-sheet expansion about 23.7 Myr ago, which had previously been inferred from oxygen isotope data (Mi1 event). |
Mendeley readers
The data shown below were compiled from readership statistics for 206 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Germany | 4 | 2% |
| United States | 3 | 1% |
| Netherlands | 1 | <1% |
| South Africa | 1 | <1% |
| Australia | 1 | <1% |
| New Zealand | 1 | <1% |
| United Kingdom | 1 | <1% |
| Unknown | 194 | 94% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 45 | 22% |
| Student > Ph. D. Student | 42 | 20% |
| Professor > Associate Professor | 21 | 10% |
| Student > Master | 16 | 8% |
| Student > Bachelor | 13 | 6% |
| Other | 41 | 20% |
| Unknown | 28 | 14% |
| Readers by discipline | Count | As % |
|---|---|---|
| Earth and Planetary Sciences | 140 | 68% |
| Environmental Science | 13 | 6% |
| Agricultural and Biological Sciences | 8 | 4% |
| Physics and Astronomy | 5 | 2% |
| Biochemistry, Genetics and Molecular Biology | 4 | 2% |
| Other | 4 | 2% |
| Unknown | 32 | 16% |
Attention Score in Context
This research output has an Altmetric Attention Score of 13. 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 10 August 2022.
All research outputs
#2,315,364
of 23,063,209 outputs
Outputs from Nature
#43,344
of 91,446 outputs
Outputs of similar age
#2,158
of 42,651 outputs
Outputs of similar age from Nature
#71
of 316 outputs
Altmetric has tracked 23,063,209 research outputs across all sources so far. Compared to these this one has done well and is in the 89th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 91,446 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 99.6. This one has gotten more attention than average, scoring higher than 52% 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 42,651 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 94% of its contemporaries.
We're also able to compare this research output to 316 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 75% of its contemporaries.