New Evidence from Beneath the Western North Atlantic for the Depth of Glacial Erosion in Greenland and North America
Abstract Interpretation of Deep Sea Drilling Project results and air-gun seismic profiles suggests that about 10 6 km 3 of sediment have been eroded from eastern North America and southern Greenland and deposited in the adjacent North Atlantic since the beginning of continental glaciation. This volu...
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Cambridge University Press (CUP)
1980
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Online Access: | http://dx.doi.org/10.1016/0033-5894(80)90047-2 http://api.elsevier.com/content/article/PII:0033589480900472?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589480900472?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400015660 |
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crcambridgeupr:10.1016/0033-5894(80)90047-2 2024-09-15T18:09:20+00:00 New Evidence from Beneath the Western North Atlantic for the Depth of Glacial Erosion in Greenland and North America Laine, Edward P. 1980 http://dx.doi.org/10.1016/0033-5894(80)90047-2 http://api.elsevier.com/content/article/PII:0033589480900472?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589480900472?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400015660 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 14, issue 2, page 188-198 ISSN 0033-5894 1096-0287 journal-article 1980 crcambridgeupr https://doi.org/10.1016/0033-5894(80)90047-2 2024-07-24T04:03:07Z Abstract Interpretation of Deep Sea Drilling Project results and air-gun seismic profiles suggests that about 10 6 km 3 of sediment have been eroded from eastern North America and southern Greenland and deposited in the adjacent North Atlantic since the beginning of continental glaciation. This volume is a minimum estimate which does not account for sediment beneath the continental shelf nor that portion carried south of the Blake-Bahama Outer Ridge by the Western Boundary Undercurrent. It represents erosion of about 100 m of solid rock and indicates that more than 90% of the sediment eroded from these areas was deposited as sands, silts, and clays in the adjacent western North Atlantic. Glaciation accounts for between 55 and 95 m of this average 100 m, and fluvial processes account for the remainder. The documented erosion in part substantiates W. A. White's (1972, Geological Society of America Bulletin 83 , 1037–1056) hypothesis of deep erosion and exhumation of shield regions, but is not in agreement with the entire volume of erosion implied by his model. Article in Journal/Newspaper Greenland North Atlantic Cambridge University Press Quaternary Research 14 2 188 198 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Interpretation of Deep Sea Drilling Project results and air-gun seismic profiles suggests that about 10 6 km 3 of sediment have been eroded from eastern North America and southern Greenland and deposited in the adjacent North Atlantic since the beginning of continental glaciation. This volume is a minimum estimate which does not account for sediment beneath the continental shelf nor that portion carried south of the Blake-Bahama Outer Ridge by the Western Boundary Undercurrent. It represents erosion of about 100 m of solid rock and indicates that more than 90% of the sediment eroded from these areas was deposited as sands, silts, and clays in the adjacent western North Atlantic. Glaciation accounts for between 55 and 95 m of this average 100 m, and fluvial processes account for the remainder. The documented erosion in part substantiates W. A. White's (1972, Geological Society of America Bulletin 83 , 1037–1056) hypothesis of deep erosion and exhumation of shield regions, but is not in agreement with the entire volume of erosion implied by his model. |
format |
Article in Journal/Newspaper |
author |
Laine, Edward P. |
spellingShingle |
Laine, Edward P. New Evidence from Beneath the Western North Atlantic for the Depth of Glacial Erosion in Greenland and North America |
author_facet |
Laine, Edward P. |
author_sort |
Laine, Edward P. |
title |
New Evidence from Beneath the Western North Atlantic for the Depth of Glacial Erosion in Greenland and North America |
title_short |
New Evidence from Beneath the Western North Atlantic for the Depth of Glacial Erosion in Greenland and North America |
title_full |
New Evidence from Beneath the Western North Atlantic for the Depth of Glacial Erosion in Greenland and North America |
title_fullStr |
New Evidence from Beneath the Western North Atlantic for the Depth of Glacial Erosion in Greenland and North America |
title_full_unstemmed |
New Evidence from Beneath the Western North Atlantic for the Depth of Glacial Erosion in Greenland and North America |
title_sort |
new evidence from beneath the western north atlantic for the depth of glacial erosion in greenland and north america |
publisher |
Cambridge University Press (CUP) |
publishDate |
1980 |
url |
http://dx.doi.org/10.1016/0033-5894(80)90047-2 http://api.elsevier.com/content/article/PII:0033589480900472?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589480900472?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400015660 |
genre |
Greenland North Atlantic |
genre_facet |
Greenland North Atlantic |
op_source |
Quaternary Research volume 14, issue 2, page 188-198 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/0033-5894(80)90047-2 |
container_title |
Quaternary Research |
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14 |
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2 |
container_start_page |
188 |
op_container_end_page |
198 |
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1810446818182430720 |