Petrography and detrital zircon U-Ph dating of the Neogene sandstones in the Sylhet Trough, Bengal Basin (Bangladesh): Implications for Provenance
文献类型：期刊论文
| 作者 | Khanam, Farida2; Rahman, M. Julleh Jalalur3; Abdullah, Rashed3; Xiao, Wenjiao4; Alam, Mustafa1 |
| 刊名 | HIMALAYAN GEOLOGY
 |
| 出版日期 | 2020 |
| 卷号 | 41期号:2页码:133-144 |
| 关键词 | Provenance Neogene sediments Detrital Zircon U-Pb Dating Sandstone Petrography Sylhet Trough Bengal Basin |
| ISSN号 | 0971-8966 |
| 英文摘要 | The Sylhet Trough is located in the northeastern part of the Indian plate, was developed as a part of a foreland basin (i.e., the Bengal Basin) in response to the uplift of the mountain belts of Himalaya and Indo-Burman Ranges and accommodated one of the thickest sedimentary piles. The present study aims to understand the possible provenance of the Neogene sediments in the trough based on results from detrital zircon U-Pb dating and detrital mode of sandstone petrography. Provenance analysis based on the modal composition of these Neogene sediments indicates a 'recycled orogen', suggesting significant reworking and recycling of the detrital sediments during the mountain building process. The detrital zircon age spectra of the Miocene Surma Group and Plio-Pleistone Dupitila sediments from the Sylhet Trough suggest that the sediments were mostly derived from three Himalayan litho-tectonic units; the Tethyan Himalaya, the Higher Himalaya and the Lesser Himalaya. However, younger detrital zircons (<200 Ma) from the Sylhet Trough are aged similar to 143-32 Ma, are identical to similar to 85-50 Ma Gangdese batholith, located north of the Himalayan belt. Such observation suggests that the sediments of the Sylhet Trough are sourced from the Late Cretaceous-Eocene Gangdese Trans Himalayan Batholith that includes the Bomi-Chayu, the Dianxi-Burma and the Northern Magmatic Belt (i.e., the Northern Lhasa block). |
| WOS关键词 | SURMA GROUP ; PB AGE ; SEDIMENTS ; TECTONICS ; BRAHMAPUTRA ; HISTORY ; GEOCHEMISTRY ; CONSTRAINTS ; EVOLUTION ; COLLISION |
| 资助项目 | 'Banggabandu Fellowship Program', Ministry of Science and Technology, Government of the People's Republic of Bangladesh |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000550807800002 |
| 出版者 | WADIA INST HIMALAYAN GEOLOGY |
| 资助机构 | 'Banggabandu Fellowship Program', Ministry of Science and Technology, Government of the People's Republic of Bangladesh ; 'Banggabandu Fellowship Program', Ministry of Science and Technology, Government of the People's Republic of Bangladesh ; 'Banggabandu Fellowship Program', Ministry of Science and Technology, Government of the People's Republic of Bangladesh ; 'Banggabandu Fellowship Program', Ministry of Science and Technology, Government of the People's Republic of Bangladesh ; 'Banggabandu Fellowship Program', Ministry of Science and Technology, Government of the People's Republic of Bangladesh ; 'Banggabandu Fellowship Program', Ministry of Science and Technology, Government of the People's Republic of Bangladesh ; 'Banggabandu Fellowship Program', Ministry of Science and Technology, Government of the People's Republic of Bangladesh ; 'Banggabandu Fellowship Program', Ministry of Science and Technology, Government of the People's Republic of Bangladesh |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/97565]  |
| 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 | Rahman, M. Julleh Jalalur |
| 作者单位 | 1.Dhaka Univ, Dept Geol, Dhaka, Bangladesh 2.Bangladesh Petr Explorat & Prod Co Ltd BAPEX, Dhaka, Bangladesh 3.Jahangirnagar Univ, Dept Geol Sci, Dhaka, Bangladesh 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Khanam, Farida,Rahman, M. Julleh Jalalur,Abdullah, Rashed,et al. Petrography and detrital zircon U-Ph dating of the Neogene sandstones in the Sylhet Trough, Bengal Basin (Bangladesh): Implications for Provenance[J]. HIMALAYAN GEOLOGY,2020,41(2):133-144. |
| APA | Khanam, Farida,Rahman, M. Julleh Jalalur,Abdullah, Rashed,Xiao, Wenjiao,&Alam, Mustafa.(2020).Petrography and detrital zircon U-Ph dating of the Neogene sandstones in the Sylhet Trough, Bengal Basin (Bangladesh): Implications for Provenance.HIMALAYAN GEOLOGY,41(2),133-144. |
| MLA | Khanam, Farida,et al."Petrography and detrital zircon U-Ph dating of the Neogene sandstones in the Sylhet Trough, Bengal Basin (Bangladesh): Implications for Provenance".HIMALAYAN GEOLOGY 41.2(2020):133-144. |
入库方式： OAI收割
来源：地质与地球物理研究所
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