Tertiary Basalts Dredged From Baffin Bay
Three dredge hauls were recovered from scarps on the West Greenland continental shelf in Baffin Bay. Two of the dredge hauls consisted essentially of basalts but the third, at the mouth of Disko Bay, contained some 50% Precambrian erratics. Both the mineralogy and chemistry of these offshore rocks a...
Published in: | Canadian Journal of Earth Sciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Canadian Science Publishing
1975
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Online Access: | http://dx.doi.org/10.1139/e75-127 http://www.nrcresearchpress.com/doi/pdf/10.1139/e75-127 |
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crcansciencepubl:10.1139/e75-127 2023-12-17T10:27:33+01:00 Tertiary Basalts Dredged From Baffin Bay Clarke, D. B. 1975 http://dx.doi.org/10.1139/e75-127 http://www.nrcresearchpress.com/doi/pdf/10.1139/e75-127 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 12, issue 8, page 1396-1405 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1975 crcansciencepubl https://doi.org/10.1139/e75-127 2023-11-19T13:38:46Z Three dredge hauls were recovered from scarps on the West Greenland continental shelf in Baffin Bay. Two of the dredge hauls consisted essentially of basalts but the third, at the mouth of Disko Bay, contained some 50% Precambrian erratics. Both the mineralogy and chemistry of these offshore rocks are very similar to the most evolved basaltic compositions found elsewhere in the West Greenland Tertiary volcanic province. The dredged samples show none of the features expected for submarine tholeiites and were therefore probably erupted subaerially and later subsided below present day sea-level. A petrogenetic model, involving equilibration of a basaltic magma at a pressure in the range 5–8 kb, is proposed to account for the chemistry of this suite of rocks. Article in Journal/Newspaper Baffin Bay Baffin Bay Baffin Disko Bay Greenland Canadian Science Publishing (via Crossref) Baffin Bay Greenland Canadian Journal of Earth Sciences 12 8 1396 1405 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Clarke, D. B. Tertiary Basalts Dredged From Baffin Bay |
topic_facet |
General Earth and Planetary Sciences |
description |
Three dredge hauls were recovered from scarps on the West Greenland continental shelf in Baffin Bay. Two of the dredge hauls consisted essentially of basalts but the third, at the mouth of Disko Bay, contained some 50% Precambrian erratics. Both the mineralogy and chemistry of these offshore rocks are very similar to the most evolved basaltic compositions found elsewhere in the West Greenland Tertiary volcanic province. The dredged samples show none of the features expected for submarine tholeiites and were therefore probably erupted subaerially and later subsided below present day sea-level. A petrogenetic model, involving equilibration of a basaltic magma at a pressure in the range 5–8 kb, is proposed to account for the chemistry of this suite of rocks. |
format |
Article in Journal/Newspaper |
author |
Clarke, D. B. |
author_facet |
Clarke, D. B. |
author_sort |
Clarke, D. B. |
title |
Tertiary Basalts Dredged From Baffin Bay |
title_short |
Tertiary Basalts Dredged From Baffin Bay |
title_full |
Tertiary Basalts Dredged From Baffin Bay |
title_fullStr |
Tertiary Basalts Dredged From Baffin Bay |
title_full_unstemmed |
Tertiary Basalts Dredged From Baffin Bay |
title_sort |
tertiary basalts dredged from baffin bay |
publisher |
Canadian Science Publishing |
publishDate |
1975 |
url |
http://dx.doi.org/10.1139/e75-127 http://www.nrcresearchpress.com/doi/pdf/10.1139/e75-127 |
geographic |
Baffin Bay Greenland |
geographic_facet |
Baffin Bay Greenland |
genre |
Baffin Bay Baffin Bay Baffin Disko Bay Greenland |
genre_facet |
Baffin Bay Baffin Bay Baffin Disko Bay Greenland |
op_source |
Canadian Journal of Earth Sciences volume 12, issue 8, page 1396-1405 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e75-127 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
12 |
container_issue |
8 |
container_start_page |
1396 |
op_container_end_page |
1405 |
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1785579434964680704 |