关于南乌拉尔山脉西坡岩浆岩/超岩浆岩侵入体 Sm-Nd 年龄的新数据

IF 0.7 4区地球科学 Q4 GEOSCIENCES, MULTIDISCIPLINARY Doklady Earth Sciences Pub Date : 2024-07-01 DOI:10.1134/s1028334x24602621

S. G. Kovalev, S. S. Kovalev, A. A. Sharipova, V. M. Gorozhanin, A. V. Maslov

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摘要

摘要这项工作提供了沿南乌拉尔西坡分布的 Ishlya（1470 ± 62 Ma）和 Misaelga（1481 ± 58 Ma）黑云母/超黑云母复合体的 Sm-Nd 年龄的新数据。所获得的年龄接近国际年代地层尺度的卡利米亚-远古边界（约 1400 Ma）。根据计算数据显示，形成命名复合体的熔体的岩浆生成区域位于羽流的 "头部"，这是乌拉尔南部马沙克 "岩浆事件 "的主要原因。

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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New Data on the Sm–Nd Age of Mafic/Ultramafic Intrusions on the Western Slope of the Southern Urals

Abstract

This work presents new data on the Sm–Nd age of the Ishlya (1470 ± 62 Ma) and Misaelga (1481 ± 58 Ma) mafic/ultramafic complexes distributed along the western slope of the Southern Urals. The ages obtained are close to the Calymmian–Ectasian boundary (~1400 Ma) of the International Chronostratigraphic Scale. Based on calculated data, it is shown that the area of magma generation for the melts that formed the named complexes has been located in the “head” of a plume, which is the primary cause of the Mashak “magmatic event” in the Southern Urals.

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来源期刊

Doklady Earth Sciences 地学-地球科学综合

CiteScore

1.40

自引率

22.20%

发文量

138

审稿时长

3-6 weeks

期刊介绍： Doklady Earth Sciences is a journal that publishes new research in Earth science of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.