Pleistocene Ice at the Base of The Barnes Ice Cap, Baffin Island, N.W.T., Canada
Abstract Oxygen-isotope ratios indicate that a distinctive band of white ice along the margin of the Barnes Ice Cap is of Pleistocene age. It is estimated freom a flow mogerl that beneath the center of the ice cap the thickness of the band shuuld be abont 0.6 times its thickness at the margin, or ab...
Published in: | Journal of Glaciology |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
1976
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0022143000030719 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000030719 |
id |
crcambridgeupr:10.1017/s0022143000030719 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s0022143000030719 2024-06-23T07:51:29+00:00 Pleistocene Ice at the Base of The Barnes Ice Cap, Baffin Island, N.W.T., Canada Leb. Hooke, Roger 1976 http://dx.doi.org/10.1017/s0022143000030719 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000030719 en eng Cambridge University Press (CUP) Journal of Glaciology volume 17, issue 75, page 49-59 ISSN 0022-1430 1727-5652 journal-article 1976 crcambridgeupr https://doi.org/10.1017/s0022143000030719 2024-06-05T04:03:00Z Abstract Oxygen-isotope ratios indicate that a distinctive band of white ice along the margin of the Barnes Ice Cap is of Pleistocene age. It is estimated freom a flow mogerl that beneath the center of the ice cap the thickness of the band shuuld be abont 0.6 times its thickness at the margin, or about 8 m. However, an ingerpengernt estimate, based on calculated vertical strain-rates and explicitly assuming no basal melting, predicts a thickness of about 22 m beneath the center of the ice cap. The discrepancy between the two thickness estimates is interpreted as indicating that basal melting has occurred. Calculated basal temperatures support this conclusion. Article in Journal/Newspaper Baffin Island Baffin Barnes Ice Cap Ice cap Journal of Glaciology Cambridge University Press Baffin Island Barnes Ice Cap ENVELOPE(-73.498,-73.498,70.001,70.001) Canada Journal of Glaciology 17 75 49 59 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract Oxygen-isotope ratios indicate that a distinctive band of white ice along the margin of the Barnes Ice Cap is of Pleistocene age. It is estimated freom a flow mogerl that beneath the center of the ice cap the thickness of the band shuuld be abont 0.6 times its thickness at the margin, or about 8 m. However, an ingerpengernt estimate, based on calculated vertical strain-rates and explicitly assuming no basal melting, predicts a thickness of about 22 m beneath the center of the ice cap. The discrepancy between the two thickness estimates is interpreted as indicating that basal melting has occurred. Calculated basal temperatures support this conclusion. |
format |
Article in Journal/Newspaper |
author |
Leb. Hooke, Roger |
spellingShingle |
Leb. Hooke, Roger Pleistocene Ice at the Base of The Barnes Ice Cap, Baffin Island, N.W.T., Canada |
author_facet |
Leb. Hooke, Roger |
author_sort |
Leb. Hooke, Roger |
title |
Pleistocene Ice at the Base of The Barnes Ice Cap, Baffin Island, N.W.T., Canada |
title_short |
Pleistocene Ice at the Base of The Barnes Ice Cap, Baffin Island, N.W.T., Canada |
title_full |
Pleistocene Ice at the Base of The Barnes Ice Cap, Baffin Island, N.W.T., Canada |
title_fullStr |
Pleistocene Ice at the Base of The Barnes Ice Cap, Baffin Island, N.W.T., Canada |
title_full_unstemmed |
Pleistocene Ice at the Base of The Barnes Ice Cap, Baffin Island, N.W.T., Canada |
title_sort |
pleistocene ice at the base of the barnes ice cap, baffin island, n.w.t., canada |
publisher |
Cambridge University Press (CUP) |
publishDate |
1976 |
url |
http://dx.doi.org/10.1017/s0022143000030719 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000030719 |
long_lat |
ENVELOPE(-73.498,-73.498,70.001,70.001) |
geographic |
Baffin Island Barnes Ice Cap Canada |
geographic_facet |
Baffin Island Barnes Ice Cap Canada |
genre |
Baffin Island Baffin Barnes Ice Cap Ice cap Journal of Glaciology |
genre_facet |
Baffin Island Baffin Barnes Ice Cap Ice cap Journal of Glaciology |
op_source |
Journal of Glaciology volume 17, issue 75, page 49-59 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000030719 |
container_title |
Journal of Glaciology |
container_volume |
17 |
container_issue |
75 |
container_start_page |
49 |
op_container_end_page |
59 |
_version_ |
1802642596805214208 |