Intrusive relationships between young and old Archaean gneisses: evidence from Ivisǎrtoq, southern West Greenland
Abstract Relict discordant relationships between the c. 3000–2800 Ma old Nǔk granitic ( s.l. ) gneisses and the c. 3700 Ma old Amǐtsoq gneisses of Ivisǎrtoq clearly indicate that the Nǔk gneisses originated as intrusive sheets and bosses. The older gneisses are preserved as continuous banded units w...
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crwiley:10.1002/gj.3350180106 2024-06-02T08:07:28+00:00 Intrusive relationships between young and old Archaean gneisses: evidence from Ivisǎrtoq, southern West Greenland Hall, R. P. Friend, C. R. L. 1983 http://dx.doi.org/10.1002/gj.3350180106 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fgj.3350180106 https://onlinelibrary.wiley.com/doi/pdf/10.1002/gj.3350180106 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Geological Journal volume 18, issue 1, page 77-91 ISSN 0072-1050 1099-1034 journal-article 1983 crwiley https://doi.org/10.1002/gj.3350180106 2024-05-03T12:04:06Z Abstract Relict discordant relationships between the c. 3000–2800 Ma old Nǔk granitic ( s.l. ) gneisses and the c. 3700 Ma old Amǐtsoq gneisses of Ivisǎrtoq clearly indicate that the Nǔk gneisses originated as intrusive sheets and bosses. The older gneisses are preserved as continuous banded units which are injected by thin granitic dykes and sills and become progressively disrupted by increasing proportions of intrusive Nǔk granitic material until they occur merely as discrete xenoliths and enclaves dissemminated within a younger gneiss matrix. The Nǔk granites were emplaced into the cores of developing large scale folds within intercalated oceanic and ancient continental portions of the Archaean crust, previously interleaved by thrusting. Article in Journal/Newspaper Greenland Wiley Online Library Greenland Geological Journal 18 1 77 91 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Relict discordant relationships between the c. 3000–2800 Ma old Nǔk granitic ( s.l. ) gneisses and the c. 3700 Ma old Amǐtsoq gneisses of Ivisǎrtoq clearly indicate that the Nǔk gneisses originated as intrusive sheets and bosses. The older gneisses are preserved as continuous banded units which are injected by thin granitic dykes and sills and become progressively disrupted by increasing proportions of intrusive Nǔk granitic material until they occur merely as discrete xenoliths and enclaves dissemminated within a younger gneiss matrix. The Nǔk granites were emplaced into the cores of developing large scale folds within intercalated oceanic and ancient continental portions of the Archaean crust, previously interleaved by thrusting. |
format |
Article in Journal/Newspaper |
author |
Hall, R. P. Friend, C. R. L. |
spellingShingle |
Hall, R. P. Friend, C. R. L. Intrusive relationships between young and old Archaean gneisses: evidence from Ivisǎrtoq, southern West Greenland |
author_facet |
Hall, R. P. Friend, C. R. L. |
author_sort |
Hall, R. P. |
title |
Intrusive relationships between young and old Archaean gneisses: evidence from Ivisǎrtoq, southern West Greenland |
title_short |
Intrusive relationships between young and old Archaean gneisses: evidence from Ivisǎrtoq, southern West Greenland |
title_full |
Intrusive relationships between young and old Archaean gneisses: evidence from Ivisǎrtoq, southern West Greenland |
title_fullStr |
Intrusive relationships between young and old Archaean gneisses: evidence from Ivisǎrtoq, southern West Greenland |
title_full_unstemmed |
Intrusive relationships between young and old Archaean gneisses: evidence from Ivisǎrtoq, southern West Greenland |
title_sort |
intrusive relationships between young and old archaean gneisses: evidence from ivisǎrtoq, southern west greenland |
publisher |
Wiley |
publishDate |
1983 |
url |
http://dx.doi.org/10.1002/gj.3350180106 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fgj.3350180106 https://onlinelibrary.wiley.com/doi/pdf/10.1002/gj.3350180106 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Geological Journal volume 18, issue 1, page 77-91 ISSN 0072-1050 1099-1034 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/gj.3350180106 |
container_title |
Geological Journal |
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18 |
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1 |
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77 |
op_container_end_page |
91 |
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1800752557134446592 |