Granitoid rocks and associated coper skarn, Whycocomagh Mountain, Cape Breton Island, Nova Scotia
Mineralized (Fe-Cu-W-Mo) skarn in the Whycocomagh Mountain area is associated with a small pluton of Devonian (402±20 Ma) age, which intruded predominantly metasedimentary rocks of the Hadrynian George River Group. The pluton consists largely of granite porphyry with a marginal granodiorite to diori...
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Atlantic Geoscience Society
1984
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ftuninewbrunojs:oai:ojs.journals.lib.unb.ca:article/1573 2023-05-15T15:46:48+02:00 Granitoid rocks and associated coper skarn, Whycocomagh Mountain, Cape Breton Island, Nova Scotia Barr, Sandra M. Choy, R. Yip Colwell, J. A. Oldale, H. S. 1984-04-04 application/pdf https://journals.lib.unb.ca/index.php/ag/article/view/1573 eng eng Atlantic Geoscience Society https://journals.lib.unb.ca/index.php/ag/article/view/1573/1939 https://journals.lib.unb.ca/index.php/ag/article/view/1573 Copyright (c) 2015 Atlantic Geology Atlantic Geoscience; Vol. 20 No. 1 (1984) 2564-2987 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1984 ftuninewbrunojs 2022-07-11T11:41:23Z Mineralized (Fe-Cu-W-Mo) skarn in the Whycocomagh Mountain area is associated with a small pluton of Devonian (402±20 Ma) age, which intruded predominantly metasedimentary rocks of the Hadrynian George River Group. The pluton consists largely of granite porphyry with a marginal granodiorite to diorite zone, and minor porphyritlc granodiorite to monzodiorite dykes and pegmatite. The suite is calc-alkalic with I-type characteristics. Although weakly mineralized, the Whycocomagh Mountain pluton has features typical of plutons associated with porphyry-type Cu-Mo deposits. Calc-silicate rocks derived from marbles of the George River Group are the chief hosts for magnetlte ± chalcopyrlte ± scheelite ± molybdenite ± pyrite which occur in veinlets along fractures and as disseminated grains In adjacent alteration envelopes. Characteristics of the pluton and the skarn minerals suggest that the deposit is a copper skarn. RÉSUMÉ Un skarn minéralise (Fe-Cu-W-Mo), situe dans la région de la montagne Whycocomagh, est associé à une petite intrusion ignée d'âge Dévonien (402±20 m.a.) qui pénétre des roches, principalement des métasédiments, du groupe George River (Hadrynien). Le pluton consiste surtout en un granite porphyrique accompagne d'une zone marginale (granodiorite à diorite), de dykes mineurs (granodiorite à monzodiorite porphyrique) et de pegmatite. L'ensemble est calco-alcalln et de "type 1". Blen que faiblement minéralise, le pluton Whycocomagh Mountain possède lea caractérlstiques typiques des plutons associés aux dépôts porphyrlques de type Cu-Mo. Les calco-sflicates dérives des marbres du groupe George River sont les notes principaux du cortege for magnétite ± chalcopyrlte ± scheelite ± molybdenite ± pyrite que L’on retrouve dans des veinules le long des fractures et disséminés dans les ... 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 20 1 |
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Open Polar |
collection |
University of New Brunswick: Centre for Digital Scholarship Journals |
op_collection_id |
ftuninewbrunojs |
language |
English |
description |
Mineralized (Fe-Cu-W-Mo) skarn in the Whycocomagh Mountain area is associated with a small pluton of Devonian (402±20 Ma) age, which intruded predominantly metasedimentary rocks of the Hadrynian George River Group. The pluton consists largely of granite porphyry with a marginal granodiorite to diorite zone, and minor porphyritlc granodiorite to monzodiorite dykes and pegmatite. The suite is calc-alkalic with I-type characteristics. Although weakly mineralized, the Whycocomagh Mountain pluton has features typical of plutons associated with porphyry-type Cu-Mo deposits. Calc-silicate rocks derived from marbles of the George River Group are the chief hosts for magnetlte ± chalcopyrlte ± scheelite ± molybdenite ± pyrite which occur in veinlets along fractures and as disseminated grains In adjacent alteration envelopes. Characteristics of the pluton and the skarn minerals suggest that the deposit is a copper skarn. RÉSUMÉ Un skarn minéralise (Fe-Cu-W-Mo), situe dans la région de la montagne Whycocomagh, est associé à une petite intrusion ignée d'âge Dévonien (402±20 m.a.) qui pénétre des roches, principalement des métasédiments, du groupe George River (Hadrynien). Le pluton consiste surtout en un granite porphyrique accompagne d'une zone marginale (granodiorite à diorite), de dykes mineurs (granodiorite à monzodiorite porphyrique) et de pegmatite. L'ensemble est calco-alcalln et de "type 1". Blen que faiblement minéralise, le pluton Whycocomagh Mountain possède lea caractérlstiques typiques des plutons associés aux dépôts porphyrlques de type Cu-Mo. Les calco-sflicates dérives des marbres du groupe George River sont les notes principaux du cortege for magnétite ± chalcopyrlte ± scheelite ± molybdenite ± pyrite que L’on retrouve dans des veinules le long des fractures et disséminés dans les ... |
format |
Article in Journal/Newspaper |
author |
Barr, Sandra M. Choy, R. Yip Colwell, J. A. Oldale, H. S. |
spellingShingle |
Barr, Sandra M. Choy, R. Yip Colwell, J. A. Oldale, H. S. Granitoid rocks and associated coper skarn, Whycocomagh Mountain, Cape Breton Island, Nova Scotia |
author_facet |
Barr, Sandra M. Choy, R. Yip Colwell, J. A. Oldale, H. S. |
author_sort |
Barr, Sandra M. |
title |
Granitoid rocks and associated coper skarn, Whycocomagh Mountain, Cape Breton Island, Nova Scotia |
title_short |
Granitoid rocks and associated coper skarn, Whycocomagh Mountain, Cape Breton Island, Nova Scotia |
title_full |
Granitoid rocks and associated coper skarn, Whycocomagh Mountain, Cape Breton Island, Nova Scotia |
title_fullStr |
Granitoid rocks and associated coper skarn, Whycocomagh Mountain, Cape Breton Island, Nova Scotia |
title_full_unstemmed |
Granitoid rocks and associated coper skarn, Whycocomagh Mountain, Cape Breton Island, Nova Scotia |
title_sort |
granitoid rocks and associated coper skarn, whycocomagh mountain, cape breton island, nova scotia |
publisher |
Atlantic Geoscience Society |
publishDate |
1984 |
url |
https://journals.lib.unb.ca/index.php/ag/article/view/1573 |
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. 20 No. 1 (1984) 2564-2987 |
op_relation |
https://journals.lib.unb.ca/index.php/ag/article/view/1573/1939 https://journals.lib.unb.ca/index.php/ag/article/view/1573 |
op_rights |
Copyright (c) 2015 Atlantic Geology |
container_title |
Atlantic Geology |
container_volume |
20 |
container_issue |
1 |
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1766381517719732224 |