Paleocene Neo-Tethyan slab rollback constrained by A(1)-type granitic intrusion in the Gaoligong-Tengliang-Yingjiang belt of the Eastern Himalayan Syntaxis, SE Tibet
文献类型：期刊论文
| 作者 | Liu, Zheng1; Liao, Shi-Yong2; Tan, Shu-Cheng1; He, Xiao-Hu1; Wang, Guo-Chang3; Wang, Dong-Bing4; Zhou, Qing4 |
| 刊名 | INTERNATIONAL JOURNAL OF EARTH SCIENCES
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 108期号:6页码:2113-2128 |
| 关键词 | A-type granite Neo-Tethys Slab rollback Paleocene SE Tibet |
| ISSN号 | 1437-3254 |
| DOI | 10.1007/s00531-019-01752-4 |
| 通讯作者 | Tan, Shu-Cheng(tansc001@126.com) |
| 英文摘要 | Slab rollback is one of the primary processes in shaping tectonic framework. However, in the Tibet-Himalaya orogen, the timing of the Neo-Tethyan slab rollback remains controversial. In this contribution, we investigated an early Paleocene (ca. 62 Ma) A(1)-type granitic intrusion (South Gongshan) from the Gaoligong-Tengliang-Yingjiang (GTY) area, SE Tibet. It is mainly characterized by high 10,000*Ga/Al ratios (4.0-9.1) and extremely high HFSEs contents (Zr + Nb + Ce + Y = 669-3146 ppm), with relatively low Y/Nb ratios (0.8-1.1). The samples collected from the intrusion exhibit high zircon epsilon(Hf)(t) (+1.1 to +5.7) and whole-rock epsilon(Nd)(t) values (- 0.8 to - 3.1). Geochemical data indicated that it was probably produced by extreme FC of asthenospheric mantle-derived basaltic magmas. Together with results from convergence rate between India and Asia, the emplacement of the South Gongshan intrusion was likely to be associated with a transition from flat to steep subduction triggered by the Neo-Tethyan slab rollback. We proposed that the Neo-Tethyan slab rollback beneath the GTY area might have occurred at ca. 62 Ma. |
| WOS关键词 | A-TYPE GRANITES ; ZIRCON U-PB ; SW CHINA PETROGENESIS ; INDIA-ASIA COLLISION ; TENGCHONG BLOCK ; WESTERN YUNNAN ; MILIN AREA ; ISOTOPE ; ROCKS ; AGES |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000481892500020 |
| 出版者 | SPRINGER |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/27919]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Tan, Shu-Cheng |
| 作者单位 | 1.Yunnan Univ, Sch Resource Environm & Earth Sci, Kunming 650091, Yunnan, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Key Lab Planetary Sci, Nanjing 210008, Peoples R China 3.Yunnan Univ, Yunnan Key Lab Palaeobiol, Kunming 650091, Yunnan, Peoples R China 4.Chinese Geol Survey, Chengdu Ctr, Chengdu 610081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Zheng,Liao, Shi-Yong,Tan, Shu-Cheng,et al. Paleocene Neo-Tethyan slab rollback constrained by A(1)-type granitic intrusion in the Gaoligong-Tengliang-Yingjiang belt of the Eastern Himalayan Syntaxis, SE Tibet[J]. INTERNATIONAL JOURNAL OF EARTH SCIENCES,2019,108(6):2113-2128. |
| APA | Liu, Zheng.,Liao, Shi-Yong.,Tan, Shu-Cheng.,He, Xiao-Hu.,Wang, Guo-Chang.,...&Zhou, Qing.(2019).Paleocene Neo-Tethyan slab rollback constrained by A(1)-type granitic intrusion in the Gaoligong-Tengliang-Yingjiang belt of the Eastern Himalayan Syntaxis, SE Tibet.INTERNATIONAL JOURNAL OF EARTH SCIENCES,108(6),2113-2128. |
| MLA | Liu, Zheng,et al."Paleocene Neo-Tethyan slab rollback constrained by A(1)-type granitic intrusion in the Gaoligong-Tengliang-Yingjiang belt of the Eastern Himalayan Syntaxis, SE Tibet".INTERNATIONAL JOURNAL OF EARTH SCIENCES 108.6(2019):2113-2128. |
入库方式： OAI收割
来源：紫金山天文台
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。