Effect of Rock Composition on Appearance of Garnet in Anorthosite–Charnockite Suites
Fe 2+ /Mg and normative An/Ab ratios of 55 rocks of the Adirondack anorthosite–charnockite suite subdivide the compositional field in two domains; one without garnet (at low ratios) and one commonly with garnet (at high ratios). A similar subdivision is shown by 27 rocks of the Morin Complex. On the...
Published in: | Canadian Journal of Earth Sciences |
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Canadian Science Publishing
1973
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Online Access: | http://dx.doi.org/10.1139/e73-097 http://www.nrcresearchpress.com/doi/pdf/10.1139/e73-097 |
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crcansciencepubl:10.1139/e73-097 2023-12-17T10:33:32+01:00 Effect of Rock Composition on Appearance of Garnet in Anorthosite–Charnockite Suites Martignole, J. Schrijver, K. 1973 http://dx.doi.org/10.1139/e73-097 http://www.nrcresearchpress.com/doi/pdf/10.1139/e73-097 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 10, issue 7, page 1132-1139 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1973 crcansciencepubl https://doi.org/10.1139/e73-097 2023-11-19T13:39:26Z Fe 2+ /Mg and normative An/Ab ratios of 55 rocks of the Adirondack anorthosite–charnockite suite subdivide the compositional field in two domains; one without garnet (at low ratios) and one commonly with garnet (at high ratios). A similar subdivision is shown by 27 rocks of the Morin Complex. On the other hand, this subdivision is not valid for small anorthosite–charnockite complexes in the southern, Canadian, part of the Grenville Province, nor for the huge Nain (Labrador) anorthosite–adamellite massif.These different relations can be explained by: (1) formation of garnet during cooling under high confining pressure in the southern part of the Grenville Province, the size of the anorthosite–charnockite body determining the rate of cooling and (2) cooling of the Nain massif under lower confining pressure. Article in Journal/Newspaper Nain Canadian Science Publishing (via Crossref) Nain ENVELOPE(-61.695,-61.695,56.542,56.542) Canadian Journal of Earth Sciences 10 7 1132 1139 |
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 Martignole, J. Schrijver, K. Effect of Rock Composition on Appearance of Garnet in Anorthosite–Charnockite Suites |
topic_facet |
General Earth and Planetary Sciences |
description |
Fe 2+ /Mg and normative An/Ab ratios of 55 rocks of the Adirondack anorthosite–charnockite suite subdivide the compositional field in two domains; one without garnet (at low ratios) and one commonly with garnet (at high ratios). A similar subdivision is shown by 27 rocks of the Morin Complex. On the other hand, this subdivision is not valid for small anorthosite–charnockite complexes in the southern, Canadian, part of the Grenville Province, nor for the huge Nain (Labrador) anorthosite–adamellite massif.These different relations can be explained by: (1) formation of garnet during cooling under high confining pressure in the southern part of the Grenville Province, the size of the anorthosite–charnockite body determining the rate of cooling and (2) cooling of the Nain massif under lower confining pressure. |
format |
Article in Journal/Newspaper |
author |
Martignole, J. Schrijver, K. |
author_facet |
Martignole, J. Schrijver, K. |
author_sort |
Martignole, J. |
title |
Effect of Rock Composition on Appearance of Garnet in Anorthosite–Charnockite Suites |
title_short |
Effect of Rock Composition on Appearance of Garnet in Anorthosite–Charnockite Suites |
title_full |
Effect of Rock Composition on Appearance of Garnet in Anorthosite–Charnockite Suites |
title_fullStr |
Effect of Rock Composition on Appearance of Garnet in Anorthosite–Charnockite Suites |
title_full_unstemmed |
Effect of Rock Composition on Appearance of Garnet in Anorthosite–Charnockite Suites |
title_sort |
effect of rock composition on appearance of garnet in anorthosite–charnockite suites |
publisher |
Canadian Science Publishing |
publishDate |
1973 |
url |
http://dx.doi.org/10.1139/e73-097 http://www.nrcresearchpress.com/doi/pdf/10.1139/e73-097 |
long_lat |
ENVELOPE(-61.695,-61.695,56.542,56.542) |
geographic |
Nain |
geographic_facet |
Nain |
genre |
Nain |
genre_facet |
Nain |
op_source |
Canadian Journal of Earth Sciences volume 10, issue 7, page 1132-1139 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e73-097 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
10 |
container_issue |
7 |
container_start_page |
1132 |
op_container_end_page |
1139 |
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1785587629684686848 |