U-Pb Isotope Geochronology of Syntectonic Granites from Hainan Island, South China: Constraints on Tectonic Evolution of the Eastern Paleo-Tethys Ocean
文献类型：期刊论文
| 作者 | Zhou, Yang5,6; Yan, Yi6; Liu, Hailing4; Cai, Jianxin4; Zhou, Mengfei3; Zhang, Xinchang6; Wang, Yin2,5; Shen, Baoyun1 |
| 刊名 | JOURNAL OF OCEAN UNIVERSITY OF CHINA
 |
| 出版日期 | 2020-12-01 |
| 卷号 | 19期号:6页码:1315-1330 |
| ISSN号 | 1672-5182 |
| 关键词 | Indosinian orogeny Hainan Island Xiaomei shear zone Mangsan shear zone syntectonic granites paleo-Tethys |
| DOI | 10.1007/s11802-020-4352-1 |
| 英文摘要 | Since the recognition of the Indosinian orogeny in northern Vietnam, Triassic orogens have been widely identified around the western and southwestern boundaries of the South China block. The paleo-Tethys sutures stretch from west to southeast, from Jinshajiang-Ailaoshan via NE Vietnam to Hainan Island; these sutures exhibit and develop voluminous Permian-early Triassic magmatism and numerous high-strain shear zones. As ophiolites related to the paleo-Tethys are lacking on Hainan Island, the eastward extension of the Indosinian orogeny and subduction and closure time of the paleo-Tethys Ocean on Hainan Island remain controversial. Here, an integrated kinematic and geochronological study has been conducted on two shear zones, called the Xiaomei and Mangsan shear zones. U-Pb zircon dating yields an age of early Triassic (252-251 Myr) for Xiaomei syntectonic granites which formed in the same tectonic setting and presented the similar nanoparticles to the Indosinian granites from Ailaoshan ductile shear zone, including the strawberry-like and flower-like nanoparticles. The NE-trending Mangsan shear zone represented by the gneissic granites with middle Permian ages (264-262 Myr) formed in the same tectonic setting as the Wuzhi-shan granites that were proposed as I-type granites. These middle Permian gneissic granites with arc affinity may represent an arc setting related to the NW subduction of the paleo-Tethys. The analyses reveal that granites with late Triassic ages (235-232 Myr) in the Xiaomei shear zone have the characteristics of A-type granites. The late Triassic extensional events on Hainan Island may be related to the subduction of the paleo-Pacific Plate beneath the East Asian continent. |
| WOS关键词 | A-TYPE GRANITES ; DUCTILE SHEAR ZONE ; VOLCANIC-ROCKS ; TRACE-ELEMENT ; INDOSINIAN OROGENY ; NORTH MARGIN ; SUTURE ZONE ; ZIRCON ; GEOCHEMISTRY ; PETROGENESIS |
| WOS研究方向 | Oceanography |
| 语种 | 英语 |
| 出版者 | OCEAN UNIV CHINA |
| WOS记录号 | WOS:000589197500010 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/98688]  |
| 专题 | 地质与地球物理研究所_其他部门 |
| 通讯作者 | Liu, Hailing |
| 作者单位 | 1.Guangdong Univ Technol, Sch Electromech Engn, Guangzhou 510006, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, SKL, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Porous Flow & Fluid Mech, Langfang 065007, Peoples R China 4.Chinese Acad Sci, South China Sea Inst Oceanol, Guangzhou 510301, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Yang,Yan, Yi,Liu, Hailing,et al. U-Pb Isotope Geochronology of Syntectonic Granites from Hainan Island, South China: Constraints on Tectonic Evolution of the Eastern Paleo-Tethys Ocean[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2020,19(6):1315-1330. |
| APA | Zhou, Yang.,Yan, Yi.,Liu, Hailing.,Cai, Jianxin.,Zhou, Mengfei.,...&Shen, Baoyun.(2020).U-Pb Isotope Geochronology of Syntectonic Granites from Hainan Island, South China: Constraints on Tectonic Evolution of the Eastern Paleo-Tethys Ocean.JOURNAL OF OCEAN UNIVERSITY OF CHINA,19(6),1315-1330. |
| MLA | Zhou, Yang,et al."U-Pb Isotope Geochronology of Syntectonic Granites from Hainan Island, South China: Constraints on Tectonic Evolution of the Eastern Paleo-Tethys Ocean".JOURNAL OF OCEAN UNIVERSITY OF CHINA 19.6(2020):1315-1330. |
入库方式： OAI收割
来源：地质与地球物理研究所
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