Age and Geodynamic Setting of the Brusilovka Caldera, Sikhote-Alin

被引：0
|
作者：
A. V. Grebennikov
S. A. Kasatkin
I. Yu. Chekryzhov
D. G. Fedoseev
机构：
[1] Far Eastern Geological Institute,
[2] Far Eastern Branch,undefined
[3] Russian Academy of Sciences,undefined
来源：
Russian Journal of Pacific Geology | 2022年 / 16卷
关键词：
geochronology; Paleocene-early Eocene; left-lateral displacement; Sikhote-Alin orogenic belt; Russian Far East;
D O I：
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学科分类号：
摘要：
The absolute age of the Brusilovka paleo-caldera volcanic rocks has been determined for the first time through the LA-ICP-MS U–Pb zircon isotopic dating. The obtained results (~61–56 Ma) are consistent with the Paleocene magmatic stage of the Sikhote-Alin, and the patterns of their structural localization and spatiotemporal distribution are consistent with left-lateral displacements along the Vostochny and Pribrezhny faults. The distribution characteristics of early Paleogene igneous rocks both in the frontal and rear continental-marginal parts of the southern Sikhote-Alin can serve as a basis for paleogeodynamic reconstructions and subsequent metallogenic analysis.
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页码：634 / 639
页数：5
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