奥尔洪地区花岗岩岩浆活动的年龄和地球化学演化:从喀里多尼亚合冲无矿花岗岩到中古生代板内环境的稀有金属花岗岩和伟晶岩

IF 4.6 3区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY
China Geology Pub Date : 2024-01-01 DOI:10.31035/cg2023040
Viktor Antipin , Valentina Makrygina , Larisa Kushch , Nataliya Sheptyakova
{"title":"奥尔洪地区花岗岩岩浆活动的年龄和地球化学演化:从喀里多尼亚合冲无矿花岗岩到中古生代板内环境的稀有金属花岗岩和伟晶岩","authors":"Viktor Antipin ,&nbsp;Valentina Makrygina ,&nbsp;Larisa Kushch ,&nbsp;Nataliya Sheptyakova","doi":"10.31035/cg2023040","DOIUrl":null,"url":null,"abstract":"<div><p>The detailed description of two granite complexes in the Olkhon subterrane is given. The Early Paleozoic Sharanur complex was formed by granitization of gneisses of the Olkhon series. It includes migmatites, granite-gneisses, granites and pegmatites of normal alkalinity; they belong to the type of syncollisional granites. The Middle Paleozoic Aya granite complex includes mother Aya massif of amazonite-bearing granites and several types of rare-metal pegmatites. They have elevated alkalinity, low of Ba, Sr, and high LILE and HFSE elements contents. The Aya pegmatites lie in northwest cracks of stretching and associated with the rise of the territory under the influence of the North Asian plume. These cracks and pegmatites mark the beginning of a new intraplate geodynamic setting. Two geochemical types are distinguished among the pegmatites of this complex. These are amazonite pegmatites of Li-F type with Ta mineralization and complex type pegmatite with Be-Rb-Nb-Ta and Li-F mineralization (the Ilixin vein). The Tashkiney pegmatite vein is similar to Ilixin, but lies in the gneisses of the Olkhon series. It shows high concentrations of Be, Nb, Ta, as well as W, Sn, but lacks Li and F, due to a greater depth and higher temperature of the melt crystallization of this pegmatite.</p><p>©2024 China Geology Editorial Office.</p></div>","PeriodicalId":45329,"journal":{"name":"China Geology","volume":null,"pages":null},"PeriodicalIF":4.6000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2096519224000569/pdfft?md5=646c9292802440c3f2c847a44a0b0ce4&pid=1-s2.0-S2096519224000569-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Age and geochemical evolution of granite magmatism in Olkhon region from Caledonian syncollisional ore-free granite to the rare metal granite and pegmatite of Middle Paleozoic intraplate setting\",\"authors\":\"Viktor Antipin ,&nbsp;Valentina Makrygina ,&nbsp;Larisa Kushch ,&nbsp;Nataliya Sheptyakova\",\"doi\":\"10.31035/cg2023040\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The detailed description of two granite complexes in the Olkhon subterrane is given. The Early Paleozoic Sharanur complex was formed by granitization of gneisses of the Olkhon series. It includes migmatites, granite-gneisses, granites and pegmatites of normal alkalinity; they belong to the type of syncollisional granites. The Middle Paleozoic Aya granite complex includes mother Aya massif of amazonite-bearing granites and several types of rare-metal pegmatites. They have elevated alkalinity, low of Ba, Sr, and high LILE and HFSE elements contents. The Aya pegmatites lie in northwest cracks of stretching and associated with the rise of the territory under the influence of the North Asian plume. These cracks and pegmatites mark the beginning of a new intraplate geodynamic setting. Two geochemical types are distinguished among the pegmatites of this complex. These are amazonite pegmatites of Li-F type with Ta mineralization and complex type pegmatite with Be-Rb-Nb-Ta and Li-F mineralization (the Ilixin vein). The Tashkiney pegmatite vein is similar to Ilixin, but lies in the gneisses of the Olkhon series. It shows high concentrations of Be, Nb, Ta, as well as W, Sn, but lacks Li and F, due to a greater depth and higher temperature of the melt crystallization of this pegmatite.</p><p>©2024 China Geology Editorial Office.</p></div>\",\"PeriodicalId\":45329,\"journal\":{\"name\":\"China Geology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.6000,\"publicationDate\":\"2024-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2096519224000569/pdfft?md5=646c9292802440c3f2c847a44a0b0ce4&pid=1-s2.0-S2096519224000569-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"China Geology\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2096519224000569\",\"RegionNum\":3,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"GEOSCIENCES, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"China Geology","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2096519224000569","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

摘要

本文详细描述了奥尔洪次岩层中的两个花岗岩群。早古生代沙拉努尔岩群是由奥尔洪系列片麻岩花岗岩化形成的。它包括普通碱度的偏闪长岩、花岗片麻岩、花岗岩和伟晶岩;它们属于同步碰撞花岗岩类型。中古生代阿亚花岗岩群包括阿亚母块含亚马孙岩的花岗岩和几种稀有金属伟晶岩。它们的碱度较高,钡、锶含量较低,锂惰性元素和高频闪锌元素含量较高。阿亚伟晶岩位于伸展的西北裂缝中,与该地区在北亚羽流影响下的上升有关。这些裂缝和伟晶岩标志着新的板内地球动力环境的开始。在这一复合体的伟晶岩中,有两种地球化学类型。它们是具有钽矿化的锂-F 型亚马孙伟晶岩和具有铍-铌-钽矿化和锂-F 矿化的复合型伟晶岩(Ilixin 矿脉)。塔什金尼伟晶岩矿脉与伊利新类似,但位于奥尔洪系列片麻岩中。它显示出高浓度的 Be、Nb、Ta 以及 W、Sn,但缺乏 Li 和 F,这是因为该伟晶岩的熔融结晶深度更大、温度更高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Age and geochemical evolution of granite magmatism in Olkhon region from Caledonian syncollisional ore-free granite to the rare metal granite and pegmatite of Middle Paleozoic intraplate setting

The detailed description of two granite complexes in the Olkhon subterrane is given. The Early Paleozoic Sharanur complex was formed by granitization of gneisses of the Olkhon series. It includes migmatites, granite-gneisses, granites and pegmatites of normal alkalinity; they belong to the type of syncollisional granites. The Middle Paleozoic Aya granite complex includes mother Aya massif of amazonite-bearing granites and several types of rare-metal pegmatites. They have elevated alkalinity, low of Ba, Sr, and high LILE and HFSE elements contents. The Aya pegmatites lie in northwest cracks of stretching and associated with the rise of the territory under the influence of the North Asian plume. These cracks and pegmatites mark the beginning of a new intraplate geodynamic setting. Two geochemical types are distinguished among the pegmatites of this complex. These are amazonite pegmatites of Li-F type with Ta mineralization and complex type pegmatite with Be-Rb-Nb-Ta and Li-F mineralization (the Ilixin vein). The Tashkiney pegmatite vein is similar to Ilixin, but lies in the gneisses of the Olkhon series. It shows high concentrations of Be, Nb, Ta, as well as W, Sn, but lacks Li and F, due to a greater depth and higher temperature of the melt crystallization of this pegmatite.

©2024 China Geology Editorial Office.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
China Geology
China Geology GEOLOGY-
CiteScore
7.80
自引率
11.10%
发文量
275
审稿时长
16 weeks
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信