The Upper Basalts of the East Chukotka Segment of Okhotsk-Chukotka Belt: the Along Strike Migration of Volcanic Activity or the Overprint by Later Magmatic Event?

Tikhomirov, P. L.; Lebedev, I. E.; Pasenko, A. M.; Lhuillier, F. J. L.; Alekseev, D. and Pavlov, V. E. (2021): The Upper Basalts of the East Chukotka Segment of Okhotsk-Chukotka Belt: the Along Strike Migration of Volcanic Activity or the Overprint by Later Magmatic Event? In: Doklady Earth Sciences, Vol. 501, No. 2: pp. 1038-1042

Abstract

New U-Pb and Ar-40/Ar-39 isotopic dates on volcanic rocks of the East Chukotka segment of the Okhotsk-Chukotka Belt correspond to 76-71 Ma span, which is partially beyond the conventional lifetime of this volcanic province. This could result from the migration of magmatic loci along the strike of the volcanic belt, and/or from the overprint by a younger magmatic event.

• Item Type: Journal article
• Faculties: Geosciences > Department of Earth and Environmental Sciences
• Subjects: 500 Science > 550 Earth sciences and geology
• ISSN: 1028-334X
• Language: English