Geochemical characteristics and genesis of Tahe granitic complex in northern part of the Da Hinggan Range
文献类型：期刊论文
| 作者 | Zhang YanLong1; Zhao XuChao1,2; Ge WenChun1; Zhang JiHeng1,2; Gao Yan1,3 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2010-12-01 |
| 卷号 | 26期号:12页码:3507-3520 |
| 关键词 | Tahe granitic complex Magma mixing Zircon Hf isotopes Crustal growth |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Tahe pluton is a granitic complex formed in Early Paleozoic, which locates in the eastern Ergun block near the north side of Tayuan-Xiguitu suture zone. It is mainly composed of syenogranite, monzogranite, with minor alkali-feldspar granite and granodiorite. Gabbroic enclaves are enclosed by granitic rocks. The complex is classified as post-orogenic I-type intrusion, with the characteristics of high-K calc-alkaline series. Characteristics of outcrop, microstructures, mineral assemblages, chemical and zircon Hf isotopic compositions show magma mixing during the petrogenesis definitely. At Early Paleozoic, the crust and mantle underwent partial melting under an extensional environment following the collision between the Ergun and the Xing' an blocks. The basaltic magma which originated from depleted mantle mixed with granitic magma melted by lower crust, and then formed different rock types of Tahe complex through fractionation crystallization. The epsilon(Hf)(t) values (from -0.8 to +5.6) and Hf model ages (0.9 similar to 1.5Ga) of the granites indicate that the source rocks of Tahe granite were juvenile crustal materials mainly originated form depleted mantle in Mid-Neo Proterozoic. Combined with previously published zircon Hf isotopic data of the Early Paleozoic and Mesozoic granites in the Ergun block, it is concluded that block underwent an important episode of crustal growth in Mid-Neo Proterozoic. |
| WOS关键词 | U-PB AGES ; HF ISOTOPIC EVIDENCE ; LACHLAN FOLD BELT ; S-TYPE GRANITES ; A-TYPE GRANITES ; NORTHEASTERN CHINA ; MAFIC ENCLAVES ; I-TYPE ; PETROGENESIS ; ZIRCON |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000286452000005 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/72250]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang YanLong |
| 作者单位 | 1.Jilin Univ, Coll Earth Sci, Changchun 130061, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Jilin Univ, Int Ctr Geosci Res & Educ NE Asia, Changchun 130026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang YanLong,Zhao XuChao,Ge WenChun,et al. Geochemical characteristics and genesis of Tahe granitic complex in northern part of the Da Hinggan Range[J]. ACTA PETROLOGICA SINICA,2010,26(12):3507-3520. |
| APA | Zhang YanLong,Zhao XuChao,Ge WenChun,Zhang JiHeng,&Gao Yan.(2010).Geochemical characteristics and genesis of Tahe granitic complex in northern part of the Da Hinggan Range.ACTA PETROLOGICA SINICA,26(12),3507-3520. |
| MLA | Zhang YanLong,et al."Geochemical characteristics and genesis of Tahe granitic complex in northern part of the Da Hinggan Range".ACTA PETROLOGICA SINICA 26.12(2010):3507-3520. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。