SHRIMP Zircon U-Pb Datingascii-font-family: ’Times New Roman’">，Geochemistryascii-font-family: ’Times New Roman’">，Sr-Nd-Hf Isotopic Analysis of the Yingqian Intrusion in Jiangxi Provinceascii-font-family: ’Times New Roman’">，South China and Its Geological Significance
- 责任者：Guo Chunli (MLR Key Laboratory of Metallogeny and Mineral Assessment ; Insitute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Mao Jingwen
- 刊名：Acta Petrologica Sinica
- 出版年：2010
- 卷期：26(3)
- 关键词：黑云母花岗岩 ; biotite granite ; 花岗闪长岩 ; granodiorites
- 页码：p.919-937
- 图表：14 illus., 6 tables, 54 refs.
- 分类号：0801, 0600, 1300
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
The Yingqian intrusion is located in southern Jiangxi Province of the East Nanling region, and consists of granitoids of two periods of granitoids, mega-porphyritic granodiorites and fine-grained granitesascii-font-family: ’Times New Roman’">．SHRIMP zircon U-Pb dating indicates that the Yingqian intrusion is a Mid-Jurassic magmatic plutonascii-font-family: ’Times New Roman’">．All of the rocks fall into the calc-alkaline categoryascii-font-family: ’Times New Roman’">．LILE enrichment and HFSE depletion, and significantly negative Nb-Ta anomalies characterized the primitive mantle-normalized trace element spidergrams of the rocksascii-font-family: ’Times New Roman’">．It indicates that the Yingqian intrusion were result of partial melting of ancient crustal materialsascii-font-family: ’Times New Roman’">，interacted with mantle-derived magmasascii-font-family: ’Times New Roman’">．The Mid-Jurassic magmatism along the “Shi-Hang” belt formed in a continental crustal thinning settingascii-font-family: ’Times New Roman’">，which is a favorable event of interaction between crustal and mantleascii-font-family: ’Times New Roman’">．