THE FIRST 40Ar/39Ar GEOCHRONOLOGICAL DATA FOR ORE METASOMATITES OF THE UNGLICHIKAN GOLD DEPOSIT, EASTERN PART OF THE MONGOL-OKHOTSK FOLD BELT

IF 0.8 Q4 GEOCHEMISTRY & GEOPHYSICS

Geodynamics & Tectonophysics Pub Date : 2020-12-15 DOI:10.5800/gt-2020-11-4-0499

A. Kadashnikova, A. A. Sorokin, A. Ponomarchuk, A. Travin, V. Ponomarchuk

引用次数: 1

Abstract

In our isotope-geochronological study, the age of ore metasomatites of the Unglichikan gold deposit is determined at 140–136 Ma. Magmatism of this age is absent in the study area, and it is thus unreasonable to relate the ore mineralization in the Unglichikan deposit to any magmatic process. We conclude that in the mobilization and redistribution of the ore material and the formation of the Unglichikan deposit, a significant role was played by dislocation processes accompanied by hydrothermal activity during the final stages of orogenesis in the Mongol-Okhotsk belt.

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蒙古—鄂霍次克褶皱带东段乌格利赤坎金矿床矿石交代岩的第一批40Ar/39Ar年代学资料

在同位素年代学研究中，确定了乌格利奇坎金矿床矿石交代岩的年龄在140 ~ 136 Ma之间。研究区没有这一时代的岩浆活动，因此将乌格利赤坎矿床的成矿作用与任何岩浆作用联系起来是不合理的。我们认为，在成矿物质的调动和再分配以及Unglichikan矿床的形成过程中，蒙古—鄂霍次克构造带造山末期伴随热液活动的位错作用发挥了重要作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Geodynamics & Tectonophysics GEOCHEMISTRY & GEOPHYSICS-

CiteScore

1.20

自引率

14.30%

发文量

审稿时长

24 weeks

期刊介绍： The purpose of the journal is facilitating awareness of the international scientific community of new data on geodynamics of continental lithosphere in a wide range of geolchronological data, as well as tectonophysics as an integral part of geodynamics, in which physico-mathematical and structural-geological concepts are applied to deal with topical problems of the evolution of structures and processes taking place simultaneously in the lithosphere. Complex geological and geophysical studies of the Earth tectonosphere have been significantly enhanced in the current decade across the world. As a result, a large number of publications are developed based on thorough analyses of paleo- and modern geodynamic processes with reference to results of properly substantiated physical experiments, field data and tectonophysical calculations. Comprehensive research of that type, followed by consolidation and generalization of research results and conclusions, conforms to the start-of-the-art of the Earth’s sciences.