Structural Characteristics and Evolution in the Southern Margin of Junggar Basin

doi:10.7657/XJPG20200102

Abstract

Abstract:

The understanding of the complex structures in the southern margin of Junggar basin is very important to explore the oil traps in the middle-deep strata and discover large oil and gas fields. In this paper, the structural characteristics and evolution of the fold-thrust belt in the southern margin of Junggar basin are studied based on 2D structural sections, quantitative analysis of structural deformation, and the complex structural model and tectonic activity time and deformation mechanism are determined. The research results show that the southern margin of Junggar basin underwent two stages of deformation in the Late Jurassic and Miocene, respectively. Strike slip faults were developed in the Late Jurassic during which Gaoquan fault-uplift zone, Aika structural belt and Qigu-south Anjihai strike-slip fault formed, which were belong to Mesozoic strike-slip fault system in the periphery of Junggar basin. Thrust and fold belt were developed during Miocene. The Cenozoic anticline over-lapped on Gaoquan fault-uplift zone and Aika structural belt in the western section of the southern margin. The drilling of Well Gaotan-1 proves that the anticline structures overlying on the paleostructures are favorable targets for exploration. Three rows of thrust faults and imbricate structures are developed in the middle section of the southern margin, and the middle and lower parts of the structures are the main targets for petroleum exploration. The Cenozoic thrust-fold belt extends from south to north in the southern margin of Junggar basin. Qigu fault-fold zone in the piedmont and the deep folds in the basin formed in the early Miocene (23 Ma), the Huo-Ma-Tu thrust fault occurred at the end of Miocene(7 Ma), and Hutubi anticline and Kayindike anticline formed in Quaternery.

Key words: Junggar basin, Shawan sag, Sikeshu sag, strike-slip fault, fold-thrust belt, Jurassic, Miocene, tectonic evolution

CLC Number:

TE121.2

ZHU Ming, WANG Xin, XIAO Lixin. Structural Characteristics and Evolution in the Southern Margin of Junggar Basin[J]. Xinjiang Petroleum Geology, 2020, 41(1): 9-17.

Figures/Tables 10

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References 25

[1]	BURCHFIEL B C, BROWN E T, DENG Q D , et al. Crustal shortening on the margins of the Tian Shan,Xinjiang,China[J]. International Geology Review, 1999,41(8):665-700.
[2]	AVOUAC J P, TAPPONNIER P, BAI P , et al. Active thrusting and folding along the northern Tian Shan and late Cenozoic rotation of the Tarim relative to Dzungaria and Kazakhstan[J]. Journal Geophysical Research, 1993,98(10):11 791-11 808.
[3]	邵雨, 李学义, 杨迪生 , 等. 准噶尔盆地南缘新生代构造特征及演化[M]. 北京: 科学出版社, 2016.
	SHAO Yu, LI Xueyi, YANG Disheng , et al. The Cenozoic structural characteristics and evolution of the southern Junggar basin[M]. Beijing: Science Press, 2016.
[4]	杨迪生, 肖立新, 闫桂华 , 等. 准噶尔盆地南缘四棵树凹陷构造特征与油气勘探[J]. 新疆石油地质, 2019,40(2):138-144.
	YANG Disheng, XIAO Lixin, YAN Guihua , et al. Structural characteristics and petroleum exploration in Sikeshu sag,southern margin of Junggar basin[J]. Xinjiang Petroleum Geology, 2019,40(2):138-144.
[5]	管树巍, 张朝军, 何登发 , 等. 前陆冲断带复杂构造解析与建模:以准噶尔盆地南缘第一排背斜带为例[J]. 地质学报, 2006,80(8):1 131-1 140.
	GUAN Shuwei, ZHANG Chaojun, HE Dengfa , et al. Complex structural analysis and modeling:the first row of anticlinal belt on the southern margin of the Junggar basin[J]. Acta Geologica Sinica, 2006,80(8):1 131-1 140.
[6]	李本亮, 管树巍, 陈竹新 , 等. 断层相关褶皱理论与应用:以准噶尔盆地南缘地质构造为例[M]. 北京: 石油工业出版社, 2010.
	LI Benliang, GUAN Shuwei, CHEN Zhuxin , et al. Fault-related fold theory and application:case study on structural geology in southern Junggar basin[M]. Beijing: Petroleum Industry Press, 2010.
[7]	李本亮, 陈竹新, 雷永良 , 等. 天山南缘与北缘前陆冲断带构造地质特征对比及油气勘探建议[J]. 石油学报, 2011,32(3), 395-403.
	LI Benliang, CHEN Zhuxin, LEI Yongliang , et al. Structural geology correlation of foreland thrust-folded belts between the southern and northern edges of the Tianshan mountain and some suggestions for hydrocarbon exploration[J]. Acta Petrolei Sinica, 2011,32(3):395-403.
[8]	GUAN S, STOCKMEYER J M, SHAW J H , et al. Structural inversion,imbricate wedging,and out-of-sequence thrusting in the southern Junggar fold-and-thrust belt,northern Tian Shan,China[J]. AAPG Bulletin, 2016,100(9):1 443-1 468.
[9]	李本亮, 管树巍, 陈竹新 , 等. 楔形构造在山前冲断构造位移量消减中的作用:以准噶尔盆地南缘为例[J]. 地质学报, 2012,86(6):890-897.
	LI Benliang, GUAN Shuwei, CHEN Zhuxin , et al. The effect of wedge structure on displacement subduction of piedmont thrust structure:a case study of the southern margin of Junggar basin[J]. Acta Geologica Sinica, 2012,86(6):890-897.
[10]	陈伟, 郝晋进, 张健 , 等. 准噶尔盆地南缘托斯台背斜的几何学分析[J]. 石油学报, 2011,32(1):90-94.
	CHEN Wei, HAO Jinjin, ZHANG Jian , et al. Geometrical kinematics of the Tuositai anticline in the southern margin of the Junggar basin[J]. Acta Petrolei Sinica, 2011,32(1):90-94.
[11]	陈伟, 彭文利, 李世琴 , 等. 独山子背斜的几何学运动学数字模拟[J]. 地质科学, 2012,47(1):37-50.
	CHEN Wei, PENG Wenli, LI Shiqin , et al. The geometric and kinematic numerical simulation of the Dushanzi anticline,southern Junggar basin[J]. Chinese Journal of Geology, 2012,47(1):37-50.
[12]	况军, 齐雪峰 . 准噶尔前陆盆地构造特征与油气勘探方向[J]. 新疆石油地质, 2006,27(1):5-9.
	KUANG Jun, QI Xuefeng . The structural characteristics and oil-gas explorative direction in Junggar foreland basin[J]. Xinjiang Petroleum Geology, 2006,27(1):5-9.
[13]	雷德文, 唐勇, 常秋生 . 准噶尔盆地南缘深部优质储集层及有利勘探领域[J]. 新疆石油地质, 2008,29(4):435-438.
	LEI Dewen, TANG Yong, CHANG Qiushen . The deep and relatively high-quality clastic reservoir bodies and favorable exploration areas in southern margin of Junggar basin[J]. Xinjiang Petroleum Geology, 2008,29(4):435-438.
[14]	邵雨, 汪仁富, 张越迁 , 等. 准噶尔盆地西北缘走滑构造与油气勘探[J]. 石油学报, 2011,32(6):976-984.
	SHAO Yu, WANG Renfu, ZHANG Yueqian , et al. Strike-slip structures and oil-gas exploration in the NW margin of the Junggar basin,China[J]. Acta Petrolei Sinica, 2011,32(6):976-984.
[15]	YU Yangli, WANG Xin, RAO Gang , et al. Mesozoic reactivated transpressional structures and multi-stage tectonic deformation along the Hong-Che fault zone in the northwestern Junggar basin,NW China[J]. Tectonophysics, 2016,679:156-168.
[16]	LIU Baojin, SHEN Jun, ZHANG Xiankang , et al. The crust structures and tectonics of Urumqi depression revealed by deep seismic reflection profile in the northern margin of Tianshan mountains[J]. Chinese Journal of Geophysics, 2007,50(5):1 274-1 282
[17]	CHARREAU J, CHEN Y, GILDER S , et al. Neogene uplift of the Tian Shan mountains observed in the magnetic record of the Jingou river section (northwest China)[J]. Tectonics, 2009,28(2):1-22.
[18]	SHAW H J, CONNORS C, SUPPE J . Seismic interpretation of contractional fault-related folds:an AAPG seismic atlas[M]. Tulsa,Oklahoma:The American Association of Petroleum Geologists, 2005.
[19]	SUPPE J . Geometry and kinematics of fault-bend folding[J]. American Journal Science, 1983,283:684-721.
[20]	邓起东, 冯先岳, 张培震 , 等. 天山活动构造[M]. 北京: 地震出版社, 2000.
	DENG Qidong, FENG Xianyue, ZHANG Peizhen , et al. Active tectonics of the Chinese Tianshan mountain[M]. Beijing: Earthquake Press, 2000.
[21]	STOCKMEYER J M, SHAW J H, GUAN S . Seismic hazards of multisegment thrust-fault ruptures:insights from the 1906 Mw 7.4-8.2 Manas,China,earthquake[J]. Seismological Research Letters, 2014,85(4):801-808.
[22]	STOCKMEYER J M, SHAW J H, BROWN N D , et al. Active thrust sheet deformation over multiple rupture cycles:a quantitative basis for relating terrace folds to fault slip rates[J]. Geological Society of America Bulletin , 2017,129(9/10):1 337-1 356.
[23]	肖立新, 雷德文, 魏凌云 , 等. 准南西段构造样式及逆冲推覆构造特征[J]. 天然气工业, 2012,32(11):36-39.
	XIAO Lixin, LEI Dewen, WEI Lingyun , et al. Structural types and features in the west of south margin in the Junggar basin[J]. Natural Gas Industry, 2012,32(11):36-39.
[24]	王彦君, 魏东涛, 潘建国 , 等. 准南独山子背斜构造几何学和运动学参数的确定及其意义[J]. 高校地质学报, 2012,18(4):711-718.
	WANG Yanjun, WEI Dongtao, PAN Jianguo , et al. The determination of geometric and kinematic parameters for the Dushanzi anticline in southern margin of Junggar basin and its significance[J]. Geological Journal of China Universities, 2012,18(4):711-718.
[25]	朱文, 吴朝东, 王家林 , 等. 准噶尔盆地四棵树凹陷三叠系物源及其构造意义[J]. 新疆石油地质, 2017,38(5):512-518.
	ZHU Wen, WU Chaodong, WANG Jialin , et al. Triassic provenance and its tectonic significance in Sikeshu sag,Junggar basin[J]. Xinjiang Petroleum Geology, 2017,38(5):512-518.