The Neoarchaean Uyea Gneiss Complex, Shetland: an onshore fragment of the Rae Craton on the European Plate
A tract of amphibolite facies granitic gneisses and metagabbros in northern Shetland, U.K., is here named the Uyea Gneiss Complex. Zircon U–Pb dating indicates emplacement of the igneous protoliths of the complex c. 2746–2726 Ma, at a later time than most of the Archaean protoliths of the Lewisian G...
Published in: | Journal of the Geological Society |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Geological Society
2019
|
Subjects: | |
Online Access: | http://eprints.esc.cam.ac.uk/4502/ http://eprints.esc.cam.ac.uk/4502/1/jgs2019-017.pdf https://doi.org/10.1144/jgs2019-017 |
id |
ftucambridgeesc:oai:eprints.esc.cam.ac.uk:4502 |
---|---|
record_format |
openpolar |
spelling |
ftucambridgeesc:oai:eprints.esc.cam.ac.uk:4502 2023-05-15T16:03:48+02:00 The Neoarchaean Uyea Gneiss Complex, Shetland: an onshore fragment of the Rae Craton on the European Plate Kinny, PD Strachan, R. A. Fowler, M Clark, C Davis, S. Jahn, I. Taylor, R. J. M. Holdsworth, R. E. Dempsey, E. 2019-05-17 text http://eprints.esc.cam.ac.uk/4502/ http://eprints.esc.cam.ac.uk/4502/1/jgs2019-017.pdf https://doi.org/10.1144/jgs2019-017 en eng Geological Society http://eprints.esc.cam.ac.uk/4502/1/jgs2019-017.pdf Kinny, PD and Strachan, R. A. and Fowler, M and Clark, C and Davis, S. and Jahn, I. and Taylor, R. J. M. and Holdsworth, R. E. and Dempsey, E. (2019) The Neoarchaean Uyea Gneiss Complex, Shetland: an onshore fragment of the Rae Craton on the European Plate. Journal of the Geological Society, 176 (5). pp. 847-862. ISSN 0016-7649, ESSN: 2041-479X DOI https://doi.org/10.1144/jgs2019-017 <https://doi.org/10.1144/jgs2019-017> 02 - Geodynamics Geophysics and Tectonics Article PeerReviewed 2019 ftucambridgeesc https://doi.org/10.1144/jgs2019-017 2021-03-11T23:16:38Z A tract of amphibolite facies granitic gneisses and metagabbros in northern Shetland, U.K., is here named the Uyea Gneiss Complex. Zircon U–Pb dating indicates emplacement of the igneous protoliths of the complex c. 2746–2726 Ma, at a later time than most of the Archaean protoliths of the Lewisian Gneiss Complex of mainland Scotland. Calc-alkaline geochemistry of the Uyea Gneiss Complex indicates arc-affinity and a strong genetic kinship among the mafic and felsic components. Zircon Hf compositions suggest an enriched mantle source and limited interaction with older crust during emplacement. Ductile fabrics developed soon after emplacement, with zircon rims at c. 2710 Ma, but there was little further deformation until Caledonian reworking east of the Uyea Shear Zone. There is no evidence for the Palaeoproterozoic reworking that dominates large tracts of the Lewisian Gneiss Complex and of the Nagssugtoqidian Orogen of East Greenland. The more northerly location of the Uyea Gneiss Complex and extensive offshore basement of similar age implies that, prior to the opening of the North Atlantic Ocean, these rocks were contiguous with the Archaean Rae Craton. Article in Journal/Newspaper East Greenland Greenland North Atlantic University of Cambridge, Department of Earth Sciences: ESC Publications Greenland Rae ENVELOPE(-116.053,-116.053,62.834,62.834) Journal of the Geological Society 176 5 847 862 |
institution |
Open Polar |
collection |
University of Cambridge, Department of Earth Sciences: ESC Publications |
op_collection_id |
ftucambridgeesc |
language |
English |
topic |
02 - Geodynamics Geophysics and Tectonics |
spellingShingle |
02 - Geodynamics Geophysics and Tectonics Kinny, PD Strachan, R. A. Fowler, M Clark, C Davis, S. Jahn, I. Taylor, R. J. M. Holdsworth, R. E. Dempsey, E. The Neoarchaean Uyea Gneiss Complex, Shetland: an onshore fragment of the Rae Craton on the European Plate |
topic_facet |
02 - Geodynamics Geophysics and Tectonics |
description |
A tract of amphibolite facies granitic gneisses and metagabbros in northern Shetland, U.K., is here named the Uyea Gneiss Complex. Zircon U–Pb dating indicates emplacement of the igneous protoliths of the complex c. 2746–2726 Ma, at a later time than most of the Archaean protoliths of the Lewisian Gneiss Complex of mainland Scotland. Calc-alkaline geochemistry of the Uyea Gneiss Complex indicates arc-affinity and a strong genetic kinship among the mafic and felsic components. Zircon Hf compositions suggest an enriched mantle source and limited interaction with older crust during emplacement. Ductile fabrics developed soon after emplacement, with zircon rims at c. 2710 Ma, but there was little further deformation until Caledonian reworking east of the Uyea Shear Zone. There is no evidence for the Palaeoproterozoic reworking that dominates large tracts of the Lewisian Gneiss Complex and of the Nagssugtoqidian Orogen of East Greenland. The more northerly location of the Uyea Gneiss Complex and extensive offshore basement of similar age implies that, prior to the opening of the North Atlantic Ocean, these rocks were contiguous with the Archaean Rae Craton. |
format |
Article in Journal/Newspaper |
author |
Kinny, PD Strachan, R. A. Fowler, M Clark, C Davis, S. Jahn, I. Taylor, R. J. M. Holdsworth, R. E. Dempsey, E. |
author_facet |
Kinny, PD Strachan, R. A. Fowler, M Clark, C Davis, S. Jahn, I. Taylor, R. J. M. Holdsworth, R. E. Dempsey, E. |
author_sort |
Kinny, PD |
title |
The Neoarchaean Uyea Gneiss Complex, Shetland: an onshore fragment of the Rae Craton on the European Plate |
title_short |
The Neoarchaean Uyea Gneiss Complex, Shetland: an onshore fragment of the Rae Craton on the European Plate |
title_full |
The Neoarchaean Uyea Gneiss Complex, Shetland: an onshore fragment of the Rae Craton on the European Plate |
title_fullStr |
The Neoarchaean Uyea Gneiss Complex, Shetland: an onshore fragment of the Rae Craton on the European Plate |
title_full_unstemmed |
The Neoarchaean Uyea Gneiss Complex, Shetland: an onshore fragment of the Rae Craton on the European Plate |
title_sort |
neoarchaean uyea gneiss complex, shetland: an onshore fragment of the rae craton on the european plate |
publisher |
Geological Society |
publishDate |
2019 |
url |
http://eprints.esc.cam.ac.uk/4502/ http://eprints.esc.cam.ac.uk/4502/1/jgs2019-017.pdf https://doi.org/10.1144/jgs2019-017 |
long_lat |
ENVELOPE(-116.053,-116.053,62.834,62.834) |
geographic |
Greenland Rae |
geographic_facet |
Greenland Rae |
genre |
East Greenland Greenland North Atlantic |
genre_facet |
East Greenland Greenland North Atlantic |
op_relation |
http://eprints.esc.cam.ac.uk/4502/1/jgs2019-017.pdf Kinny, PD and Strachan, R. A. and Fowler, M and Clark, C and Davis, S. and Jahn, I. and Taylor, R. J. M. and Holdsworth, R. E. and Dempsey, E. (2019) The Neoarchaean Uyea Gneiss Complex, Shetland: an onshore fragment of the Rae Craton on the European Plate. Journal of the Geological Society, 176 (5). pp. 847-862. ISSN 0016-7649, ESSN: 2041-479X DOI https://doi.org/10.1144/jgs2019-017 <https://doi.org/10.1144/jgs2019-017> |
op_doi |
https://doi.org/10.1144/jgs2019-017 |
container_title |
Journal of the Geological Society |
container_volume |
176 |
container_issue |
5 |
container_start_page |
847 |
op_container_end_page |
862 |
_version_ |
1766399484122628096 |