Rapid thinning of Pine Island Glacier in the early Holocene.
Pine Island Glacier, a major outlet of the West Antarctic Ice Sheet, has been undergoing rapid thinning and retreat for the past two decades. We demonstrate, using glacial-geological and geochronological data, that Pine Island Glacier (PIG) also experienced rapid thinning during the early Holocene,...
Published in: | Science |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
American Association for the Advancement of Science
2014
|
Subjects: | |
Online Access: | http://dro.dur.ac.uk/12745/ http://dro.dur.ac.uk/12745/1/12745.pdf https://doi.org/10.1126/science.1247385 |
id |
ftunivdurham:oai:dro.dur.ac.uk.OAI2:12745 |
---|---|
record_format |
openpolar |
spelling |
ftunivdurham:oai:dro.dur.ac.uk.OAI2:12745 2023-05-15T13:59:22+02:00 Rapid thinning of Pine Island Glacier in the early Holocene. Johnson, J.S. Bentley, M.J. Smith, J.A. Finkel, R.C. Rood, D.H. Gohl, K. Balco, G. Larter, R.D. Schaefer, J.M. 2014-02-28 application/pdf http://dro.dur.ac.uk/12745/ http://dro.dur.ac.uk/12745/1/12745.pdf https://doi.org/10.1126/science.1247385 unknown American Association for the Advancement of Science dro:12745 issn:0036-8075 issn: 1095-9203 doi:10.1126/science.1247385 http://dro.dur.ac.uk/12745/ http://dx.doi.org/10.1126/science.1247385 http://dro.dur.ac.uk/12745/1/12745.pdf This is the author's version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science 343, 2014, doi:10.1126/science.1247385. Science, 2014, Vol.343(6174), pp.999-1001 [Peer Reviewed Journal] Article PeerReviewed 2014 ftunivdurham https://doi.org/10.1126/science.1247385 2020-05-28T22:30:55Z Pine Island Glacier, a major outlet of the West Antarctic Ice Sheet, has been undergoing rapid thinning and retreat for the past two decades. We demonstrate, using glacial-geological and geochronological data, that Pine Island Glacier (PIG) also experienced rapid thinning during the early Holocene, around 8000 years ago. Cosmogenic 10Be concentrations in glacially transported rocks show that this thinning was sustained for decades to centuries at an average rate of more than 100 centimeters per year, which is comparable with contemporary thinning rates. The most likely mechanism was a reduction in ice shelf buttressing. Our findings reveal that PIG has experienced rapid thinning at least once in the past and that, once set in motion, rapid ice sheet changes in this region can persist for centuries. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Ice Shelf Pine Island Glacier Durham University: Durham Research Online Antarctic Pine Island Glacier ENVELOPE(-101.000,-101.000,-75.000,-75.000) West Antarctic Ice Sheet Science 343 6174 999 1001 |
institution |
Open Polar |
collection |
Durham University: Durham Research Online |
op_collection_id |
ftunivdurham |
language |
unknown |
description |
Pine Island Glacier, a major outlet of the West Antarctic Ice Sheet, has been undergoing rapid thinning and retreat for the past two decades. We demonstrate, using glacial-geological and geochronological data, that Pine Island Glacier (PIG) also experienced rapid thinning during the early Holocene, around 8000 years ago. Cosmogenic 10Be concentrations in glacially transported rocks show that this thinning was sustained for decades to centuries at an average rate of more than 100 centimeters per year, which is comparable with contemporary thinning rates. The most likely mechanism was a reduction in ice shelf buttressing. Our findings reveal that PIG has experienced rapid thinning at least once in the past and that, once set in motion, rapid ice sheet changes in this region can persist for centuries. |
format |
Article in Journal/Newspaper |
author |
Johnson, J.S. Bentley, M.J. Smith, J.A. Finkel, R.C. Rood, D.H. Gohl, K. Balco, G. Larter, R.D. Schaefer, J.M. |
spellingShingle |
Johnson, J.S. Bentley, M.J. Smith, J.A. Finkel, R.C. Rood, D.H. Gohl, K. Balco, G. Larter, R.D. Schaefer, J.M. Rapid thinning of Pine Island Glacier in the early Holocene. |
author_facet |
Johnson, J.S. Bentley, M.J. Smith, J.A. Finkel, R.C. Rood, D.H. Gohl, K. Balco, G. Larter, R.D. Schaefer, J.M. |
author_sort |
Johnson, J.S. |
title |
Rapid thinning of Pine Island Glacier in the early Holocene. |
title_short |
Rapid thinning of Pine Island Glacier in the early Holocene. |
title_full |
Rapid thinning of Pine Island Glacier in the early Holocene. |
title_fullStr |
Rapid thinning of Pine Island Glacier in the early Holocene. |
title_full_unstemmed |
Rapid thinning of Pine Island Glacier in the early Holocene. |
title_sort |
rapid thinning of pine island glacier in the early holocene. |
publisher |
American Association for the Advancement of Science |
publishDate |
2014 |
url |
http://dro.dur.ac.uk/12745/ http://dro.dur.ac.uk/12745/1/12745.pdf https://doi.org/10.1126/science.1247385 |
long_lat |
ENVELOPE(-101.000,-101.000,-75.000,-75.000) |
geographic |
Antarctic Pine Island Glacier West Antarctic Ice Sheet |
geographic_facet |
Antarctic Pine Island Glacier West Antarctic Ice Sheet |
genre |
Antarc* Antarctic Ice Sheet Ice Shelf Pine Island Glacier |
genre_facet |
Antarc* Antarctic Ice Sheet Ice Shelf Pine Island Glacier |
op_source |
Science, 2014, Vol.343(6174), pp.999-1001 [Peer Reviewed Journal] |
op_relation |
dro:12745 issn:0036-8075 issn: 1095-9203 doi:10.1126/science.1247385 http://dro.dur.ac.uk/12745/ http://dx.doi.org/10.1126/science.1247385 http://dro.dur.ac.uk/12745/1/12745.pdf |
op_rights |
This is the author's version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science 343, 2014, doi:10.1126/science.1247385. |
op_doi |
https://doi.org/10.1126/science.1247385 |
container_title |
Science |
container_volume |
343 |
container_issue |
6174 |
container_start_page |
999 |
op_container_end_page |
1001 |
_version_ |
1766267917167493120 |