Geology of Elu Inlet and Melville Sound, Nunavut, Arctic Canada
We present the results of helicopter- and field-based geological mapping of Elu Inlet and Melville Sound, Kitikmeot Region of Nunavut, Arctic Canada. The area includes a ∼150 km-wide belt of Proterozoic sedimentary rocks that unconformably overlie the Archean Slave Province of the Canadian Shield an...
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ftrepec:oai:RePEc:taf:tjomxx:v:13:y:2017:i:2:p:124-132 2023-05-15T14:54:03+02:00 Geology of Elu Inlet and Melville Sound, Nunavut, Arctic Canada Alessandro Ielpi Robert H. Rainbird J. Wilder Greenman C. Gabriel Creason http://hdl.handle.net/10.1080/17445647.2016.1268981 unknown http://hdl.handle.net/10.1080/17445647.2016.1268981 article ftrepec 2020-12-04T13:41:49Z We present the results of helicopter- and field-based geological mapping of Elu Inlet and Melville Sound, Kitikmeot Region of Nunavut, Arctic Canada. The area includes a ∼150 km-wide belt of Proterozoic sedimentary rocks that unconformably overlie the Archean Slave Province of the Canadian Shield and are cross-cut by Neoproterozoic mafic rocks and covered by early Palaeozoic deposits. This work introduces an updated sedimentologic, stratigraphic, and structural framework for the area and is corroborated by geophysical analysis of natural radioactivity. Three Proterozoic sedimentary sequences have been identified, spanning in age from ∼1.9 to ∼1.2 Ga, and including fluvial–aeolian sandstone and shallow-marine carbonate rocks. Mass-spectrometric analyses identified above-baseline concentrations of uranium along the unconformities underlying the two oldest Proterozoic sequences. Proterozoic deposits display weak deformation, related to syn-orogenic foreland and intracratonic-sag stages of the Kilohigok and Elu basins, respectively. Article in Journal/Newspaper Arctic Kitikmeot Nunavut RePEc (Research Papers in Economics) Arctic Canada Elu Inlet ENVELOPE(-106.085,-106.085,68.501,68.501) Melville Sound ENVELOPE(-107.002,-107.002,68.168,68.168) Nunavut |
institution |
Open Polar |
collection |
RePEc (Research Papers in Economics) |
op_collection_id |
ftrepec |
language |
unknown |
description |
We present the results of helicopter- and field-based geological mapping of Elu Inlet and Melville Sound, Kitikmeot Region of Nunavut, Arctic Canada. The area includes a ∼150 km-wide belt of Proterozoic sedimentary rocks that unconformably overlie the Archean Slave Province of the Canadian Shield and are cross-cut by Neoproterozoic mafic rocks and covered by early Palaeozoic deposits. This work introduces an updated sedimentologic, stratigraphic, and structural framework for the area and is corroborated by geophysical analysis of natural radioactivity. Three Proterozoic sedimentary sequences have been identified, spanning in age from ∼1.9 to ∼1.2 Ga, and including fluvial–aeolian sandstone and shallow-marine carbonate rocks. Mass-spectrometric analyses identified above-baseline concentrations of uranium along the unconformities underlying the two oldest Proterozoic sequences. Proterozoic deposits display weak deformation, related to syn-orogenic foreland and intracratonic-sag stages of the Kilohigok and Elu basins, respectively. |
format |
Article in Journal/Newspaper |
author |
Alessandro Ielpi Robert H. Rainbird J. Wilder Greenman C. Gabriel Creason |
spellingShingle |
Alessandro Ielpi Robert H. Rainbird J. Wilder Greenman C. Gabriel Creason Geology of Elu Inlet and Melville Sound, Nunavut, Arctic Canada |
author_facet |
Alessandro Ielpi Robert H. Rainbird J. Wilder Greenman C. Gabriel Creason |
author_sort |
Alessandro Ielpi |
title |
Geology of Elu Inlet and Melville Sound, Nunavut, Arctic Canada |
title_short |
Geology of Elu Inlet and Melville Sound, Nunavut, Arctic Canada |
title_full |
Geology of Elu Inlet and Melville Sound, Nunavut, Arctic Canada |
title_fullStr |
Geology of Elu Inlet and Melville Sound, Nunavut, Arctic Canada |
title_full_unstemmed |
Geology of Elu Inlet and Melville Sound, Nunavut, Arctic Canada |
title_sort |
geology of elu inlet and melville sound, nunavut, arctic canada |
url |
http://hdl.handle.net/10.1080/17445647.2016.1268981 |
long_lat |
ENVELOPE(-106.085,-106.085,68.501,68.501) ENVELOPE(-107.002,-107.002,68.168,68.168) |
geographic |
Arctic Canada Elu Inlet Melville Sound Nunavut |
geographic_facet |
Arctic Canada Elu Inlet Melville Sound Nunavut |
genre |
Arctic Kitikmeot Nunavut |
genre_facet |
Arctic Kitikmeot Nunavut |
op_relation |
http://hdl.handle.net/10.1080/17445647.2016.1268981 |
_version_ |
1766325746890964992 |