Alternative Interpretations for the Casino Complex and Klotassin Batholith in the Yukon Crystalline Terrane
A small part of the Klotassin batholith, that intrudes the Yukon Metamorphic Complex, has been studied in detail near the Casino porphyry copper–molybdenum deposit, Yukon Territory. Eleven potassium–argon model ages, including concordant biotite and hornblende ages, indicate a mid-Cretaceous (100 Ma...
Published in: | Canadian Journal of Earth Sciences |
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1975
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Online Access: | http://dx.doi.org/10.1139/e75-168 http://www.nrcresearchpress.com/doi/pdf/10.1139/e75-168 |
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crcansciencepubl:10.1139/e75-168 2023-12-17T10:28:46+01:00 Alternative Interpretations for the Casino Complex and Klotassin Batholith in the Yukon Crystalline Terrane Godwin, Colin I. 1975 http://dx.doi.org/10.1139/e75-168 http://www.nrcresearchpress.com/doi/pdf/10.1139/e75-168 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 12, issue 11, page 1910-1916 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1975 crcansciencepubl https://doi.org/10.1139/e75-168 2023-11-19T13:38:22Z A small part of the Klotassin batholith, that intrudes the Yukon Metamorphic Complex, has been studied in detail near the Casino porphyry copper–molybdenum deposit, Yukon Territory. Eleven potassium–argon model ages, including concordant biotite and hornblende ages, indicate a mid-Cretaceous (100 Ma) age for this batholith. All ages are indistinguishable statistically. This age, therefore, is interpreted as the age of emplacement of the Klotassin batholith. Older dates can be expected from rocks of the Yukon Metamorphic Complex, the Carmacks batholith, and Aishihik batholith.The Casino complex, host to the Casino deposit, is dated at latest-Cretaceous (70 Ma), based on potassium–argon model ages from two samples of biotite. The complex is clearly intrusive into and younger than the Klotassin batholith. Previously, this unit was interpreted as Early Tertiary. Possibly the several so called Early Tertiary volcanic and hypabyssal rocks in Yukon are not strictly contemporaneous. Article in Journal/Newspaper Carmacks Yukon Canadian Science Publishing (via Crossref) Yukon Aishihik ENVELOPE(-137.512,-137.512,61.598,61.598) Carmacks ENVELOPE(-136.293,-136.293,62.088,62.088) Canadian Journal of Earth Sciences 12 11 1910 1916 |
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 Godwin, Colin I. Alternative Interpretations for the Casino Complex and Klotassin Batholith in the Yukon Crystalline Terrane |
topic_facet |
General Earth and Planetary Sciences |
description |
A small part of the Klotassin batholith, that intrudes the Yukon Metamorphic Complex, has been studied in detail near the Casino porphyry copper–molybdenum deposit, Yukon Territory. Eleven potassium–argon model ages, including concordant biotite and hornblende ages, indicate a mid-Cretaceous (100 Ma) age for this batholith. All ages are indistinguishable statistically. This age, therefore, is interpreted as the age of emplacement of the Klotassin batholith. Older dates can be expected from rocks of the Yukon Metamorphic Complex, the Carmacks batholith, and Aishihik batholith.The Casino complex, host to the Casino deposit, is dated at latest-Cretaceous (70 Ma), based on potassium–argon model ages from two samples of biotite. The complex is clearly intrusive into and younger than the Klotassin batholith. Previously, this unit was interpreted as Early Tertiary. Possibly the several so called Early Tertiary volcanic and hypabyssal rocks in Yukon are not strictly contemporaneous. |
format |
Article in Journal/Newspaper |
author |
Godwin, Colin I. |
author_facet |
Godwin, Colin I. |
author_sort |
Godwin, Colin I. |
title |
Alternative Interpretations for the Casino Complex and Klotassin Batholith in the Yukon Crystalline Terrane |
title_short |
Alternative Interpretations for the Casino Complex and Klotassin Batholith in the Yukon Crystalline Terrane |
title_full |
Alternative Interpretations for the Casino Complex and Klotassin Batholith in the Yukon Crystalline Terrane |
title_fullStr |
Alternative Interpretations for the Casino Complex and Klotassin Batholith in the Yukon Crystalline Terrane |
title_full_unstemmed |
Alternative Interpretations for the Casino Complex and Klotassin Batholith in the Yukon Crystalline Terrane |
title_sort |
alternative interpretations for the casino complex and klotassin batholith in the yukon crystalline terrane |
publisher |
Canadian Science Publishing |
publishDate |
1975 |
url |
http://dx.doi.org/10.1139/e75-168 http://www.nrcresearchpress.com/doi/pdf/10.1139/e75-168 |
long_lat |
ENVELOPE(-137.512,-137.512,61.598,61.598) ENVELOPE(-136.293,-136.293,62.088,62.088) |
geographic |
Yukon Aishihik Carmacks |
geographic_facet |
Yukon Aishihik Carmacks |
genre |
Carmacks Yukon |
genre_facet |
Carmacks Yukon |
op_source |
Canadian Journal of Earth Sciences volume 12, issue 11, page 1910-1916 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e75-168 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
12 |
container_issue |
11 |
container_start_page |
1910 |
op_container_end_page |
1916 |
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1785580956137029632 |