Tectonic Structure and Geodynamic Settings of Neoproterozoic Granitoid Magmatism of the Eastern Arctic
| العنوان: | Tectonic Structure and Geodynamic Settings of Neoproterozoic Granitoid Magmatism of the Eastern Arctic |
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| المؤلفون: | Sergey D. Sokolov, A. V. Moiseev, Marina Luchitskaya |
| المصدر: | Doklady Earth Sciences. 493:573-577 |
| بيانات النشر: | Pleiades Publishing Ltd, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | education.field_of_study, Provenance, 010504 meteorology & atmospheric sciences, Continental crust, Population, Orogeny, Crust, 010502 geochemistry & geophysics, 01 natural sciences, Paleontology, Continental margin, Arctic, Magmatism, Earth and Planetary Sciences (miscellaneous), General Earth and Planetary Sciences, education, Geology, 0105 earth and related environmental sciences |
| الوصف: | The correlation of Neoproterozoic granitoid magmatism of the New Siberian Islands, Wrangel Island, Chukotka, the Chukchi Borderland, and Northern Alaska indicates integrity of the Arctic Alaska–Chukotka microplate basement and the formation of the continental crust during the Timanian (Baikalian) orogeny. The age of inherited cores of zircons and the Nd model age point out the participation of the Meso- and, less frequently, Paleoproterozoic crust in the formation of the epi-Grenville Arctida continent. In the modern structure, Timanides extended from the Timan Range through the Polar Urals and Taimyr to Chukotka and Northern Alaska, framing the margins of the Baltics, Siberia, and North America continents. It is suggested that the geodynamic setting of Neoproterozoic granitoids for most of the microplate is supra-subduction continental margin, less frequently, rift-related at the late stages of the Timanian orogeny. The origin of the Grenville and Neoproterozoic–Timanian population of detrital and inherited zircons is explained by local provenance areas. |
| تدمد: | 1531-8354 1028-334X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::8b7b3fd0df8c2e9007878d968140d833 https://doi.org/10.1134/s1028334x20080206 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........8b7b3fd0df8c2e9007878d968140d833 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15318354 1028334X |
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