Tectonic evolution of the Sichuan Basin, Southwest China

被引:251
作者
Liu, Shugen [1 ,2 ]
Yang, Yu [3 ]
Deng, Bin [1 ]
Zhong, Yong [1 ]
Wen, Long [3 ]
Sun, Wei [1 ]
Li, Zhiwu [1 ]
Jansa, Luba [4 ]
Li, Jinxi [1 ]
Song, Jinmin [1 ]
Zhang, Xihua [3 ]
Peng, Hanling [3 ]
机构
[1] Chengdu Univ Technol, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu, Peoples R China
[2] Xihua Univ, Chengdu, Peoples R China
[3] PetroChina Southwest Oil & Gasfield Co, Explorat & Dev Res Inst, Chengdu, Peoples R China
[4] Dalhousie Univ, Dept Earth Sci, Halifax, NS, Canada
关键词
Intracratonic sag; Palaeo-uplift; Structural decoupling; Superimposed basin; Sichuan basin; Eastern Tibetan Plateau; WEIYUAN GAS-FIELD; EASTERN MARGIN; TIBETAN PLATEAU; YANGTZE BLOCK; GEOLOGICAL EVOLUTION; QINLING OROGEN; ORDOS BASIN; THRUST BELT; SHAN; HISTORY;
D O I
10.1016/j.earscirev.2020.103470
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Surface deformation in continental interiors is typically coupled to processes at depth. However, in the Sichuan basin, east of the Tibetan Plateau, recent seismic data detect Neoproterozoic subduction and rifts, indicating long-term tectonic quiescence of the basement. The Sichuan basin is characterized by two episodes of weak extension and compression which influenced the architecture of the marine platform during Palaeozoic to Middle Triassic times. The weak extensional episodes occurred in the early Cambrian and late Permian, characterized by formation of intracratonic sags oriented at high angles to the basin margins, the early Cambrian Mianyang-Changning sag and the late Permian Kaijiang-Liangping sag. The formation of these sags was followed by weak compressional episodes that formed the Caledonian (Early Palaeozoic) Leshan-Longnvshi palaeo-uplift and the Mid. to Late Triassic Luzhou and Kaijiang palaeo-uplifts. These intracratonic sags and palaeo-uplifts show no genetic correlation in terms of geometry or inherited deformation. Subsequent evolution of the Sichuan basin was characterised by foreland basins controlled by the Longmenshan and Dabashan fold-and-thrust belts along the western and northeastern margins of the basin respectively. A large wedge-shaped body of strata was subsequently eroded, removing of 2.0-3.0 km of rock in the Cenozoic. The subsidence history of the Sichuan basin is characterized by an increase in subsidence rate due to the formation of the foreland basins and by a subsequent period of uplift and exhumation. We argue that structural decoupling occurred both between the sedimentary cover and the basement and between the multiple sedimentary sequences in the Sichuan basin. The Sichuan basin may thus represent a unique type of superimposed basin, as its evolution appears to have been controlled by deformation propagated from its peripheral orogens. This suggests a mechanism of basin architecture controlled by crustal deformation, rather than by deep lithospheric and mantle processes.
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页数:18
相关论文
共 107 条
[1]   Did the growth of Tibetan topography control the locus and evolution of Tien Shan mountain building? [J].
Aitken, Alan R. A. .
GEOLOGY, 2011, 39 (05) :459-462
[2]  
Allen PA, 2012, TECTONICS OF SEDIMENTARY BASINS: RECENT ADVANCES, P602
[3]  
[Anonymous], TECTONICS SEDIMENTAR
[4]   Cratonic basins and the long-term subsidence history of continental interiors [J].
Armitage, John J. ;
Allen, Philip A. .
JOURNAL OF THE GEOLOGICAL SOCIETY, 2010, 167 (01) :61-70
[5]  
Bally A.W., 1980, Facts and principles of world petroleum occurrence, V6, P9
[6]  
Burchfiel B.C., 1995, INT GEOL REV, V37, P661, DOI [DOI 10.1080/00206819509465424, 10.1080/00206819509465424]
[7]   Asymmetric three-dimensional topography over mantle plumes [J].
Burov, Evgueni ;
Gerya, Taras .
NATURE, 2014, 513 (7516) :85-+
[8]   Asymmetric vs. symmetric deep lithospheric architecture of intra-plate continental orogens [J].
Calignano, Elisa ;
Sokoutis, Dimitrios ;
Willingshofer, Ernst ;
Gueydan, Frederic ;
Cloetingh, Sierd .
EARTH AND PLANETARY SCIENCE LETTERS, 2015, 424 :38-50
[9]   Walled sedimentary basins of China [J].
Carroll, A. R. ;
Graham, S. A. ;
Smith, M. E. .
BASIN RESEARCH, 2010, 22 (01) :17-32
[10]   Emplacement of the Longmen Shan Thrust-Nappe belt along the eastern margin of the Tibetan plateau [J].
Chen, SF ;
Wilson, CJL .
JOURNAL OF STRUCTURAL GEOLOGY, 1996, 18 (04) :413-430