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Geology of Elu Inlet and Melville Sound, Nunavut, Arctic Canada

التفاصيل البيبلوغرافية
العنوان: Geology of Elu Inlet and Melville Sound, Nunavut, Arctic Canada
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
الوصف
تدمد:17445647
DOI:10.1080/17445647.2016.1268981