The Archean Victoria Fjord terrane of northernmost Greenland and geodynamic interpretation of Precambrian crust in and surrounding the Arctic Ocean
In far North Greenland at the head of Victoria Fjord (∼81°30′N), a ∼1000 km2 exposure of Precambrian crystalline basement rocks is a window through the region's extensive latest Neoproterozoic and Paleozoic Arctic Platform sedimentary cover sequence. These basement rocks, named here the Victori...
| Published in: | Journal of Geodynamics |
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| Main Authors: | , , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Pergamon-Elsevier Ltd
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| Subjects: | |
| Online Access: | http://hdl.handle.net/1885/204780 https://doi.org/10.1016/j.jog.2019.03.006 https://openresearch-repository.anu.edu.au/bitstream/1885/204780/5/01_Nutman_The_Archean_Victoria_Fjord_2019.pdf.jpg |
| Summary: | In far North Greenland at the head of Victoria Fjord (∼81°30′N), a ∼1000 km2 exposure of Precambrian crystalline basement rocks is a window through the region's extensive latest Neoproterozoic and Paleozoic Arctic Platform sedimentary cover sequence. These basement rocks, named here the Victoria Fjord terrane, are dominated by weakly-foliated granodioritic orthogneisses, with lesser amounts of migmatite. These are intercalated with strips of supracrustal rocks dominated by paragneisses. This poorly-exposed Archean terrane at Greenland's northern tip is succeeded to the south by the extensive east-west trending Paleoproterozoic Inglefield Mobile Belt of juvenile arc rocks. This project was supported by a travel grant from the Faculty of Science, Medicine and Health of the University of Wollongong, the GeoQuEST Research Centre, Hiroshima University, the Australian National University and Julie Hollis of the Bureau of Minerals and Petroleum, The Government of Greenland (Naalakkersuisut). |
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