Canadian Journal of Earth Sciences最新文献

筛选
英文 中文
LA–ICP–MS zircon U–Pb age, geochemistry, and genesis of Paleozoic granite in Biezhentao Mountain, Western Tianshan, Xinjiang 新疆天山西部别振托山古生代花岗岩的LA-ICP-MS锆石U-Pb年龄、地球化学与成因
Canadian Journal of Earth Sciences Pub Date : 2024-01-04 DOI: 10.1139/cjes-2023-0048
Xiang Li, Fang Xia, Ling-Ling Gao, Chuan Chen, Xiao-Fei Du, Shunda Li
{"title":"LA–ICP–MS zircon U–Pb age, geochemistry, and genesis of Paleozoic granite in Biezhentao Mountain, Western Tianshan, Xinjiang","authors":"Xiang Li, Fang Xia, Ling-Ling Gao, Chuan Chen, Xiao-Fei Du, Shunda Li","doi":"10.1139/cjes-2023-0048","DOIUrl":"https://doi.org/10.1139/cjes-2023-0048","url":null,"abstract":"The geologic history of the Western Tianshan region is important for understanding the evolution of the Central Asian Orogenic Belt and accretionary orogenesis. Paleozoic and Mesozoic igneous rocks are present along the northern margin of the Yili Block; however, studies of Paleozoic subduction and collisional events have been relatively limited. Published geochronologies of Middle Devonian magmatic rocks in this region are also lacking. Therefore, this study analyzed the zircon U-Pb ages and major and trace elemental compositions of three granite types collected from Biezhentao Mountain (Wenquan County, Western Tianshan). The medium-grained diorite (384.1 ± 3.6 Ma) and diorite-porphyrite (382 ± 3.2 Ma) are silica-rich, weakly peraluminous, alkali-rich, enriched in large ion lithophile elements, depleted in high field strength elements, and belong to the calc-alkaline series, with A-type granite characteristics. The monzogranite (423.3 ± 9.4 Ma) exhibits A-type granite characteristics and belongs to the peraluminous calc-alkaline series. The findings suggest that the granitoids recorded two stages of tectonomagmatism during the Middle Devonian–Late Silurian. The Middle Devonian medium-grained diorite and diorite-porphyrite formed in a back-arc extensional setting, whereas the Late Silurian monzogranite formed in an active continental margin setting during the subduction of the North Tianshan Ocean. These results provide insights into the tectonic and magmatic processes that occurred during the evolution of the Western Tianshan region and the formation and evolution of the Central Asian Orogenic Belt.","PeriodicalId":503418,"journal":{"name":"Canadian Journal of Earth Sciences","volume":"71 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139387270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
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×
相关产品
×
本文献相关产品
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