Petrology and geochemistry of Devono-Carboniferous volcanic rocks in Nova Scotia
The Devono-Carboniferous volcanic rocks of Nova Scotia include Middle Devonian basalts from the McAras Brook Formation in the northern Antigonlsh Highlands (Ballantynes Cove and McAras Brook areas), Kiddle Devonian and Carboniferous basalts and rhyolites of the Fountain Lake Group In the Cobequid Hi...
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Atlantic Geoscience Society
1983
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ftuninewbrunojs:oai:ojs.journals.lib.unb.ca:article/1566 2023-05-15T15:46:48+02:00 Petrology and geochemistry of Devono-Carboniferous volcanic rocks in Nova Scotia Dostal, J. Keppie, J. D. Dupuy, C. 1983-08-08 application/pdf https://journals.lib.unb.ca/index.php/ag/article/view/1566 eng eng Atlantic Geoscience Society https://journals.lib.unb.ca/index.php/ag/article/view/1566/1932 https://journals.lib.unb.ca/index.php/ag/article/view/1566 Copyright (c) 2015 Atlantic Geology Atlantic Geoscience; Vol. 19 No. 2 (1983) 2564-2987 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1983 ftuninewbrunojs 2022-07-11T11:41:23Z The Devono-Carboniferous volcanic rocks of Nova Scotia include Middle Devonian basalts from the McAras Brook Formation in the northern Antigonlsh Highlands (Ballantynes Cove and McAras Brook areas), Kiddle Devonian and Carboniferous basalts and rhyolites of the Fountain Lake Group In the Cobequid Highlands and the Upper Devonian-Lower Carboniferous basalts and rhyolites of the Fisset Brook Formation in Cape Breton Island. The volcanic rocks were extruded upon the continental crust in an lntraplate setting. The basalts are tholelitic except those from Ballantynes Cove which are alkaline. All these basalts could have been derived from a similar upper mantle source - garnet peridotite. Rhyolites were probably generated by crustal anatexis related to the ascending basaltic magma. The Devono-Carboniferous volcaniant is probably connected with rifting along faults bounding the Magadalen pull-apart basin. In the Cobequid Highlands, the volcanlsm appears to be spatially and temporally associated with plutonism. RÉSUMÉ Les roches volcaniquée Dévono-Carbonifères de la Nouvelle-Écosse comprennent: les basaltes de la formation McAras Brook (Dévonian moyen) dans la partie nord des hautes-terres d'Antigonlsh (régions de Ballantynes Cove et de McAras Brook); les basaltes et les rhyolites du groupe Fountain Lake (Dévonien moyen et Carbonifère) des monts Cobequid; et les basaltes et rhyolites (Dévonien supérieur-Carbonifère inférieur) de la formation Fisset Brook su l’ile du Cap-Breton. Les roches volcaniquée furent repandues à la surface de la croùte continentale dans un contexte intraplaque. Les basaltes sont tous tholèiltiques à l'exception de ceux de Ballantynes Cove qui sont alcallns. Tous ces basaltes pourralent provenir d'une même source située dans la partie supérieure de manteau terrestre - péridotite à ... Article in Journal/Newspaper Breton Island University of New Brunswick: Centre for Digital Scholarship Journals Breton Island ENVELOPE(141.383,141.383,-66.800,-66.800) Atlantic Geology 19 2 |
institution |
Open Polar |
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University of New Brunswick: Centre for Digital Scholarship Journals |
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ftuninewbrunojs |
language |
English |
description |
The Devono-Carboniferous volcanic rocks of Nova Scotia include Middle Devonian basalts from the McAras Brook Formation in the northern Antigonlsh Highlands (Ballantynes Cove and McAras Brook areas), Kiddle Devonian and Carboniferous basalts and rhyolites of the Fountain Lake Group In the Cobequid Highlands and the Upper Devonian-Lower Carboniferous basalts and rhyolites of the Fisset Brook Formation in Cape Breton Island. The volcanic rocks were extruded upon the continental crust in an lntraplate setting. The basalts are tholelitic except those from Ballantynes Cove which are alkaline. All these basalts could have been derived from a similar upper mantle source - garnet peridotite. Rhyolites were probably generated by crustal anatexis related to the ascending basaltic magma. The Devono-Carboniferous volcaniant is probably connected with rifting along faults bounding the Magadalen pull-apart basin. In the Cobequid Highlands, the volcanlsm appears to be spatially and temporally associated with plutonism. RÉSUMÉ Les roches volcaniquée Dévono-Carbonifères de la Nouvelle-Écosse comprennent: les basaltes de la formation McAras Brook (Dévonian moyen) dans la partie nord des hautes-terres d'Antigonlsh (régions de Ballantynes Cove et de McAras Brook); les basaltes et les rhyolites du groupe Fountain Lake (Dévonien moyen et Carbonifère) des monts Cobequid; et les basaltes et rhyolites (Dévonien supérieur-Carbonifère inférieur) de la formation Fisset Brook su l’ile du Cap-Breton. Les roches volcaniquée furent repandues à la surface de la croùte continentale dans un contexte intraplaque. Les basaltes sont tous tholèiltiques à l'exception de ceux de Ballantynes Cove qui sont alcallns. Tous ces basaltes pourralent provenir d'une même source située dans la partie supérieure de manteau terrestre - péridotite à ... |
format |
Article in Journal/Newspaper |
author |
Dostal, J. Keppie, J. D. Dupuy, C. |
spellingShingle |
Dostal, J. Keppie, J. D. Dupuy, C. Petrology and geochemistry of Devono-Carboniferous volcanic rocks in Nova Scotia |
author_facet |
Dostal, J. Keppie, J. D. Dupuy, C. |
author_sort |
Dostal, J. |
title |
Petrology and geochemistry of Devono-Carboniferous volcanic rocks in Nova Scotia |
title_short |
Petrology and geochemistry of Devono-Carboniferous volcanic rocks in Nova Scotia |
title_full |
Petrology and geochemistry of Devono-Carboniferous volcanic rocks in Nova Scotia |
title_fullStr |
Petrology and geochemistry of Devono-Carboniferous volcanic rocks in Nova Scotia |
title_full_unstemmed |
Petrology and geochemistry of Devono-Carboniferous volcanic rocks in Nova Scotia |
title_sort |
petrology and geochemistry of devono-carboniferous volcanic rocks in nova scotia |
publisher |
Atlantic Geoscience Society |
publishDate |
1983 |
url |
https://journals.lib.unb.ca/index.php/ag/article/view/1566 |
long_lat |
ENVELOPE(141.383,141.383,-66.800,-66.800) |
geographic |
Breton Island |
geographic_facet |
Breton Island |
genre |
Breton Island |
genre_facet |
Breton Island |
op_source |
Atlantic Geoscience; Vol. 19 No. 2 (1983) 2564-2987 |
op_relation |
https://journals.lib.unb.ca/index.php/ag/article/view/1566/1932 https://journals.lib.unb.ca/index.php/ag/article/view/1566 |
op_rights |
Copyright (c) 2015 Atlantic Geology |
container_title |
Atlantic Geology |
container_volume |
19 |
container_issue |
2 |
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1766381517558251520 |