Paleo-Tethys subduction induced slab-drag opening the Neo-Tethys: Evidence from an Iranian segment of Gondwana
文献类型：期刊论文
| 作者 | Wan, Bo2; Chu, Yang2; Chen, Ling2; Liang, Xiaofeng2; Zhang, Zhiyong2; Ao, Songjian2; Talebian, Morteza1 |
| 刊名 | EARTH-SCIENCE REVIEWS
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 221页码:13 |
| 关键词 | Paleo-Tethyan Ocean-ridge subduction Slab-drag Continental break-up Tethyan dynamics |
| ISSN号 | 0012-8252 |
| DOI | 10.1016/j.earscirev.2021.103788 |
| 英文摘要 | The Iranian plateau has a more straightforward relationship between the Paleo-Tethys and Neo-Tethys, than other regions in the Tethyan realm and is an ideal place to test the genetic connection of how the Paleo-Tethys affected the Neo-Tethys. Moreover, there is no consensus on how Paleo-Tethyan evolution influenced the Neo-Tethyan Wilson cycle. We studied the petrology, geochemistry, and metamorphic age of an eclogite suite at Rasht in northern Iran from the Paleo-Tethyan suture. The eclogitic protolith was a typical mid-ocean-ridge basalt and achieved its peak metamorphic condition of 2.7 GPa and 590 degrees C at 353 +/- 8.9 Ma. Reconstructed pressure-temperature-time path of the eclogite-facies rocks suggests that the eclogitic protolith entered the trench at 356 +/- 8.9 Ma. Mid-oceanic ridge rocks formed at similar to 380 Ma at the Rasht region and other places along the Alborz Mountain strike. A similar to 25 million years (Myr) period from the birth of oceanic crust to subduction at Rasht region implies that the mid-ocean-ridge was close to the trench. We propose that the Paleo-Tethyan mid-ocean-ridge was trench-parallelly subducted beneath the Eurasian boundary in northern Iran. This ridge-subduction propagated from east to west between 380 and 355 Ma. 47-27 Myr after ridge consumption, subduction of the remaining Paleo-Tethyan oceanic crust exerted a continuous extensional stress of similar to 0.1 GPa on the passive margin of Gondwana since the late Carboniferous. The drag-force eventually detached the Central Iranian Block from Gondwana, and opened the Neo-Tethyan ocean during the middle-late Permian. |
| WOS关键词 | CHILE-TRIPLE-JUNCTION ; A-TYPE GRANITES ; ZIRCON U-PB ; TECTONIC EVOLUTION ; RIDGE SUBDUCTION ; NW IRAN ; OROGENIC BELT ; MANTLE PLUMES ; PLATE MARGINS ; ZAGROS |
| 资助项目 | NSFC[91855207] ; NSFC[4188801] ; NSFC[91855103] ; NSFC[91755102] ; NSFC[41822204] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000703750100004 |
| 出版者 | ELSEVIER |
| 资助机构 | NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/102721]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Wan, Bo |
| 作者单位 | 1.Geol Survey Iran, Azadi Sq,Meraj Blvd, Tehran, Iran 2.Chinese Acad Sci, Innovat Acad Earth Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wan, Bo,Chu, Yang,Chen, Ling,et al. Paleo-Tethys subduction induced slab-drag opening the Neo-Tethys: Evidence from an Iranian segment of Gondwana[J]. EARTH-SCIENCE REVIEWS,2021,221:13. |
| APA | Wan, Bo.,Chu, Yang.,Chen, Ling.,Liang, Xiaofeng.,Zhang, Zhiyong.,...&Talebian, Morteza.(2021).Paleo-Tethys subduction induced slab-drag opening the Neo-Tethys: Evidence from an Iranian segment of Gondwana.EARTH-SCIENCE REVIEWS,221,13. |
| MLA | Wan, Bo,et al."Paleo-Tethys subduction induced slab-drag opening the Neo-Tethys: Evidence from an Iranian segment of Gondwana".EARTH-SCIENCE REVIEWS 221(2021):13. |
入库方式： OAI收割
来源：地质与地球物理研究所
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