The Somerset Island Formation: an upper Silurian to ?Lower Devonian intertidal/supratidal succession, Boothia Uplift region, Arctic Canada
The Somerset Island Formation of Somerset Island is a newly defined unit consisting of interbedded fine-grained, grey, planar-laminated dolomite and limestone, grey mottled limestone and dolomite, red quartzose siltstone and red dolosiltite. It forms a transitional unit between the limestone and dol...
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1978
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crcansciencepubl:10.1139/e78-019 2023-12-17T10:26:26+01:00 The Somerset Island Formation: an upper Silurian to ?Lower Devonian intertidal/supratidal succession, Boothia Uplift region, Arctic Canada Miall, A. D. Kerr, J. Wm. Gibling, M. R. 1978 http://dx.doi.org/10.1139/e78-019 http://www.nrcresearchpress.com/doi/pdf/10.1139/e78-019 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 15, issue 2, page 181-189 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1978 crcansciencepubl https://doi.org/10.1139/e78-019 2023-11-19T13:39:07Z The Somerset Island Formation of Somerset Island is a newly defined unit consisting of interbedded fine-grained, grey, planar-laminated dolomite and limestone, grey mottled limestone and dolomite, red quartzose siltstone and red dolosiltite. It forms a transitional unit between the limestone and dolomite of the underlying Read Bay Formation and the sandstone and conglomerate of the overlying Peel Sound Formation, and ranges in thickness from 150 to more than 400 m. The formation was formed predominantly in intertidal and supratidal environments and forms the lowest part of a regressive sequence that culminates in boulder conglomerates of alluvial fan origin in the Peel Sound Formation. The Somerset Island Formation is predominantly Pridolian in age, but may include some strata of Ludlovian and Gedinnian age.The regressive sequence reflects a major pulse of the Cornwallis Disturbance of Boothia Uplift. A similar sequence occurs in Prince of Wales Island, although the lower part of the succession there contains conglomerate and sandstone, rock types that are absent in Somerset Island. These rocks are formally assigned to the Lower Peel Sound Formation but are of similar age to the Somerset Island Formation of the type area.Rocks of similar facies to the Somerset Island Formation of Somerset Island comprise the upper member of the Drake Bay Formation on Russell Island and Member D of the Read Bay Formation on Cornwallis Island. The latter unit is younger than the Somerset Island Formation, reflecting a later commencement of regression in that area. Article in Journal/Newspaper Arctic Cornwallis Island Prince of Wales Island Somerset Island Canadian Science Publishing (via Crossref) Arctic Canada Prince of Wales Island ENVELOPE(-99.001,-99.001,72.668,72.668) Cornwallis ENVELOPE(-54.464,-54.464,-61.072,-61.072) Somerset Island ENVELOPE(-93.500,-93.500,73.251,73.251) Peel Sound ENVELOPE(-96.334,-96.334,73.001,73.001) Read Bay ENVELOPE(-93.584,-93.584,75.052,75.052) Drake Bay ENVELOPE(-100.668,-100.668,73.535,73.535) Cornwallis Island ENVELOPE(-95.001,-95.001,75.135,75.135) Canadian Journal of Earth Sciences 15 2 181 189 |
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 Miall, A. D. Kerr, J. Wm. Gibling, M. R. The Somerset Island Formation: an upper Silurian to ?Lower Devonian intertidal/supratidal succession, Boothia Uplift region, Arctic Canada |
topic_facet |
General Earth and Planetary Sciences |
description |
The Somerset Island Formation of Somerset Island is a newly defined unit consisting of interbedded fine-grained, grey, planar-laminated dolomite and limestone, grey mottled limestone and dolomite, red quartzose siltstone and red dolosiltite. It forms a transitional unit between the limestone and dolomite of the underlying Read Bay Formation and the sandstone and conglomerate of the overlying Peel Sound Formation, and ranges in thickness from 150 to more than 400 m. The formation was formed predominantly in intertidal and supratidal environments and forms the lowest part of a regressive sequence that culminates in boulder conglomerates of alluvial fan origin in the Peel Sound Formation. The Somerset Island Formation is predominantly Pridolian in age, but may include some strata of Ludlovian and Gedinnian age.The regressive sequence reflects a major pulse of the Cornwallis Disturbance of Boothia Uplift. A similar sequence occurs in Prince of Wales Island, although the lower part of the succession there contains conglomerate and sandstone, rock types that are absent in Somerset Island. These rocks are formally assigned to the Lower Peel Sound Formation but are of similar age to the Somerset Island Formation of the type area.Rocks of similar facies to the Somerset Island Formation of Somerset Island comprise the upper member of the Drake Bay Formation on Russell Island and Member D of the Read Bay Formation on Cornwallis Island. The latter unit is younger than the Somerset Island Formation, reflecting a later commencement of regression in that area. |
format |
Article in Journal/Newspaper |
author |
Miall, A. D. Kerr, J. Wm. Gibling, M. R. |
author_facet |
Miall, A. D. Kerr, J. Wm. Gibling, M. R. |
author_sort |
Miall, A. D. |
title |
The Somerset Island Formation: an upper Silurian to ?Lower Devonian intertidal/supratidal succession, Boothia Uplift region, Arctic Canada |
title_short |
The Somerset Island Formation: an upper Silurian to ?Lower Devonian intertidal/supratidal succession, Boothia Uplift region, Arctic Canada |
title_full |
The Somerset Island Formation: an upper Silurian to ?Lower Devonian intertidal/supratidal succession, Boothia Uplift region, Arctic Canada |
title_fullStr |
The Somerset Island Formation: an upper Silurian to ?Lower Devonian intertidal/supratidal succession, Boothia Uplift region, Arctic Canada |
title_full_unstemmed |
The Somerset Island Formation: an upper Silurian to ?Lower Devonian intertidal/supratidal succession, Boothia Uplift region, Arctic Canada |
title_sort |
somerset island formation: an upper silurian to ?lower devonian intertidal/supratidal succession, boothia uplift region, arctic canada |
publisher |
Canadian Science Publishing |
publishDate |
1978 |
url |
http://dx.doi.org/10.1139/e78-019 http://www.nrcresearchpress.com/doi/pdf/10.1139/e78-019 |
long_lat |
ENVELOPE(-99.001,-99.001,72.668,72.668) ENVELOPE(-54.464,-54.464,-61.072,-61.072) ENVELOPE(-93.500,-93.500,73.251,73.251) ENVELOPE(-96.334,-96.334,73.001,73.001) ENVELOPE(-93.584,-93.584,75.052,75.052) ENVELOPE(-100.668,-100.668,73.535,73.535) ENVELOPE(-95.001,-95.001,75.135,75.135) |
geographic |
Arctic Canada Prince of Wales Island Cornwallis Somerset Island Peel Sound Read Bay Drake Bay Cornwallis Island |
geographic_facet |
Arctic Canada Prince of Wales Island Cornwallis Somerset Island Peel Sound Read Bay Drake Bay Cornwallis Island |
genre |
Arctic Cornwallis Island Prince of Wales Island Somerset Island |
genre_facet |
Arctic Cornwallis Island Prince of Wales Island Somerset Island |
op_source |
Canadian Journal of Earth Sciences volume 15, issue 2, page 181-189 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e78-019 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
15 |
container_issue |
2 |
container_start_page |
181 |
op_container_end_page |
189 |
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1785578155181867008 |