来自次大陆岩石圈地幔的Bystraya带玄武岩:贝加尔湖裂谷系的Tunka山谷

IF 0.8 Q4 GEOSCIENCES, MULTIDISCIPLINARY

Italian Journal of Engineering Geology and Environment Pub Date : 2021-01-01 DOI:10.26516/2541-9641.2021.1.41

Y. Ailow, S. Rasskazov, T. Yasnygina, I. Chuvashova, Zhenhua Xie, Yi‐min Sun

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引用次数: 0

摘要

根据石油化学和微量元素资料，认为轴向裂谷的玄武岩来源于次大陆岩石圈地幔，其不均匀性是由于提取了上下地壳成分所致。微量元素模拟表明，含磷灰石的矿源部分熔融3- 8%，石榴石和斜辉石的比例不同。

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Basalts of the Bystraya zone from sources of sub-continental lithospheric mantle: the Tunka valley of the Baikal Rift System

In terms of petrochemical and trace-element data, basalts from the axial rift valley are suggested to originate from sources of the sub-continental lithospheric mantle, inhomogeneity of which was due to extracting upper and lower crustal components. Trace-element modeling indicated 3-8 %partial melting of apatite-bearing sources with varying garnet and clinopyroxene proportions.

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来源期刊

Italian Journal of Engineering Geology and Environment GEOSCIENCES, MULTIDISCIPLINARY-

CiteScore

1.30

自引率

8.30%

发文量

期刊介绍： Italian Journal of Engineering Geology and Environment (IJEGE), published by Sapienza Università Editrice university press, is the open access Journal of the Research Center CERI on "Prediction, Prevention ad Control of Geological Risks" of Sapienza University of Rome. The Journal publishes original papers concerning the numerous topics of environmental risks such as seismic risk, landslide risk, hydraulic and flood risk, groundwater resource management, soil and groundwater contamination, reclamation of contaminated land, applied geophysics, economic geology, land use, soil and rock characterization. IJEGE is the Journal of the Italian Association of Engineering Geology and Environment (AIGA). The Journal is published under the auspices of the International Association for Engineering Geology and the Environment (IAEG) - Italian Group.