دورية أكاديمية
Geology of Elu Inlet and Melville Sound, Nunavut, Arctic Canada
العنوان: | Geology of Elu Inlet and Melville Sound, Nunavut, Arctic Canada |
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المؤلفون: | Alessandro Ielpi, Robert H. Rainbird, J. Wilder Greenman, C. Gabriel Creason |
المصدر: | Journal of Maps, Vol 13, Iss 2, Pp 124-132 (2017) |
بيانات النشر: | Taylor & Francis Group, 2017. |
سنة النشر: | 2017 |
المجموعة: | LCC:Maps |
مصطلحات موضوعية: | Stratigraphy, sedimentology, Precambrian, Proterozoic, Laurentia, Kilohigok Basin, Maps, G3180-9980 |
الوصف: | 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. |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | English |
تدمد: | 1744-5647 17445647 |
Relation: | https://doaj.org/toc/1744-5647 |
DOI: | 10.1080/17445647.2016.1268981 |
URL الوصول: | https://doaj.org/article/30c8d947509c432fb9a026677e2efbab |
رقم الأكسشن: | edsdoj.30c8d947509c432fb9a026677e2efbab |
قاعدة البيانات: | Directory of Open Access Journals |
تدمد: | 17445647 |
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DOI: | 10.1080/17445647.2016.1268981 |