Email this article New Data on the Age of Magmatic Events in Oloy Tectonic Zone, West Chukotka Area (Evidences from Zircon U–Pb Dating)
- Authors: Kara T.V.1, Tikhomirov P.L.2,3, Demin A.D.4
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Affiliations:
- LLC Polyus
- Moscow State University
- North-East Interdisciplinary Scientific Research Institute, Far East Branch, Russian Academy of Sciences
- LLC Geokhimpoiski
- Issue: Vol 489, No 1 (2019)
- Pages: 1277-1280
- Section: Geology
- URL: https://journals.rcsi.science/1028-334X/article/view/195567
- DOI: https://doi.org/10.1134/S1028334X19110114
- ID: 195567
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Abstract
The following U–Pb ages (Ma) were obtained for zircons from volcanic rocks and granitoids representing various complexes of the Nembonda Depression (the Anadyr segment of the Okhotsk–Chukotka Belt): 147.7 ± 2; 123.8 ± 1.7; 119.3 ± 1.7; 95.8 ± 0.5; and 80.55 ± 0.96. These results support the hypothesis of a significant Aptian igneous event in the Verkhoyansk–Chukotka region and provide the basis for the revision the boundaries of the Okhotsk–Chukotka Belt.
About the authors
T. V. Kara
LLC Polyus
Email: petr_tikhomirov@mail.ru
Russian Federation, Moscow, 123056
P. L. Tikhomirov
Moscow State University; North-East Interdisciplinary Scientific Research Institute, Far East Branch, Russian Academy of Sciences
Author for correspondence.
Email: petr_tikhomirov@mail.ru
Russian Federation, Moscow, 119991; Magadan, 685000
A. D. Demin
LLC Geokhimpoiski
Email: petr_tikhomirov@mail.ru
Russian Federation, Moscow, 127282
