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Presenting Meso-Cenozoic seismic sequential stratigraphy of the Offshore Indus Basin Pakistan

文献类型：期刊论文

作者Khan, Majid4,5; Liu, Yike2,3; Din, Syed Zaheer Ud1,4
刊名PHYSICS OF THE EARTH AND PLANETARY INTERIORS
出版日期2020-03-01
卷号300页码:22
关键词Depositional sequences Seismic stratigraphy Parasequences Continental margins Offshore Indus Pakistan
ISSN号0031-9201
DOI10.1016/j.pepi.2020.106431
英文摘要Preserved deformed depositional sequences along passive continental margins are important repositories of natural resources as well as key laboratories for understanding rift-drift tectonics. With better post signal processing schemes, interpretation techniques, and potential data, imaging sedimentary basins along these margins has reached unique levels of refinement. This, in turn, has led to considerable improvement in unfolding the complex tectono-sedimentary history since rifting to basin development. In this paper, deep reflection seismic coupled with well data and biostratigraphic information have been used to decipher the third-order depositional sequences of Meso-Cenozoic succession in western parts of the Indian Plate Passive Continental Margin (Offshore Indus Basin) as pioneer research. Based on morpho-tectonic considerations, the depositional sequences are divided into syn-rift, passive margin, and post-rift stages deformed by steeply dipping normal faults. Using the principles of classic sequence stratigraphy, five third-order mappable depositional sequences have been recognized on seismic records that are controlled by regional tectonics and sea-level fluctuations coupled with sedimentation type and rates in the region. The associated system tracts were recognized and mapped based on genetic reflection terminations on seismic profiles and log motifs, and constraint surfaces include sequence boundaries (SBs), maximum flooding surfaces (MFSs) and transgressive surfaces (TSs). The depositional systems encompass lowstand system tracts (LSTs), transgressive system tracts (TSTs), and highstand system tracts (HSTs). The LSTs are composed of shallowing-upward lowstand deltas or terraces prograding in the basin-ward direction while pinches out landward at preceding depositional shoreline breaks. The sand units of TSTs are interpreted as shoreface sands deposited in the shelfal part during rising sea-levels and HSTs are characterized by coarsening and shallowing upward intervals, with both fluvial and laterally prograding deltaic deposits. A hydrocarbon entrapment model is proposed suggesting an interesting petroleum trap. Based on the entire course of this research, valuable recommendations have been made for answering past exploration failures and future efforts. Such studies can be applied to worldwide passive margins dominated by third-order sequences with complex sediments-tectonic interplay.
WOS关键词LARGER FORAMINIFERAL BIOSTRATIGRAPHY ; INDIAN-OCEAN ; CARBONATE PLATFORM ; BREAKUP ; EVOLUTION ; SEQUENCES ; FAN ; CONSTRAINTS ; GONDWANA ; TERTIARY
资助项目Young Doctors Cooperation Fund, Qilu University of Technology (Shandong Academy of Sciences)[2019BSHZ006]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000526829900008
出版者ELSEVIER
资助机构Young Doctors Cooperation Fund, Qilu University of Technology (Shandong Academy of Sciences) ; Young Doctors Cooperation Fund, Qilu University of Technology (Shandong Academy of Sciences) ; Young Doctors Cooperation Fund, Qilu University of Technology (Shandong Academy of Sciences) ; Young Doctors Cooperation Fund, Qilu University of Technology (Shandong Academy of Sciences) ; Young Doctors Cooperation Fund, Qilu University of Technology (Shandong Academy of Sciences) ; Young Doctors Cooperation Fund, Qilu University of Technology (Shandong Academy of Sciences) ; Young Doctors Cooperation Fund, Qilu University of Technology (Shandong Academy of Sciences) ; Young Doctors Cooperation Fund, Qilu University of Technology (Shandong Academy of Sciences)
源URL[http://ir.iggcas.ac.cn/handle/132A11/95566]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Khan, Majid
作者单位1.Qilu Univ Technol, Shandong Acad Sci, Jinan 250353, Shandong, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Key Lab Petr Resource Res, Inst Geol & Geophys, Beijing 100029, Peoples R China
4.Qilu Univ Technol, Int Sch Optoelect Engn, Shandong Acad Sci, Jinan 250353, Peoples R China
5.Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Khan, Majid,Liu, Yike,Din, Syed Zaheer Ud. Presenting Meso-Cenozoic seismic sequential stratigraphy of the Offshore Indus Basin Pakistan[J]. PHYSICS OF THE EARTH AND PLANETARY INTERIORS,2020,300:22.
APA Khan, Majid,Liu, Yike,&Din, Syed Zaheer Ud.(2020).Presenting Meso-Cenozoic seismic sequential stratigraphy of the Offshore Indus Basin Pakistan.PHYSICS OF THE EARTH AND PLANETARY INTERIORS,300,22.
MLA Khan, Majid,et al."Presenting Meso-Cenozoic seismic sequential stratigraphy of the Offshore Indus Basin Pakistan".PHYSICS OF THE EARTH AND PLANETARY INTERIORS 300(2020):22.

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来源：地质与地球物理研究所

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