鄂尔多斯盆地南部三叠系延长组沟谷体系构造成因

doi:10.11743/ogg20210504

摘要/Abstract

摘要：

鄂尔多斯盆地南部镇泾地区延长组顶部广泛发育沟谷体系，前人多认为是风化剥蚀和河流侵蚀所致。为了进一步厘清沟谷体系的发育特征、分布规律及其与区域构造的联系，基于三维地震资料对断裂的解释和前侏罗纪古地貌的恢复，刻画了延长组沟谷体系，探讨了其构造成因。结论显示，在延长组沉积晚期，受SW向区域构造挤压作用，玉都断裂发生左旋走滑，使延长组未成岩地层发生塑性变形，形成了一系列NW-SE向展布的挤压隆起与谷地；同时NW-SE向的拉张作用形成了NE-SW向的伸展谷地，最终形成了延长组晚期广泛分布的沟谷体系格局。该认识对于鄂尔多斯盆地南部延长组及其上覆的延安组的油气勘探都具有一定的指导意义。

关键词: 左旋走滑, 塑性变形, 沟谷体系, 构造成因, 延长组, 鄂尔多斯盆地

Abstract:

The valley systems widely developed at the top of Yanchang Formation in the Zhenjing area, southern Ordos Basin, is previously considered to be a product of long denudation and river erosion.However, deeper investigation indicates otherwise.In order to gain clearer insights into the connection between the development characteristics and occurrence of the systems with regional tectonics, this study characterizes the systems and discusses their tectonic genesis through analyses of fault interpretation and pre-Jurassic paleogeomorphy restoration based on 3D seismic data.It shows that the main fault (Yudu) experiences a sinistral strike-slip due to a NE-SW oblique compression during the late deposition stage of the Yanchang Formation, causing some layers of the formation that are still in the process of diagnesis to be plastically deformed to form a series of NW-SW trending compressional uplifts and valleys.An almost synchronously occurring NW-SE extension eventually results in the formation of this broadly distributed valley systems.The understanding can be used to guide the exploration of reservoirs in both the Yanchang Formation and overlying Yan'an Formation in the area.

Key words: sinistral strike-slip, plastic deformation, valley system, tectonic genesis, Yanchang Formation, Ordos Basin

中图分类号:

TE121.2

何发岐,齐荣,王付斌,等. 鄂尔多斯盆地南部三叠系延长组沟谷体系构造成因[J]. 石油与天然气地质, 2021, 42(5): 1056-1062. doi: 10.11743/ogg20210504 Faqi He,Rong Qi,Fubin Wang,et al. Tectonic genesis of Triassic Yanchang Formation valley systems, southern Ordos Basin[J]. Oil & Gas Geology, 2021, 42(5): 1056-1062. doi: 10.11743/ogg20210504

图/表 6

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参考文献 29

1	时志强, 韩永林, 赵俊兴, 等. 鄂尔多斯盆地中南部中侏罗世延安期沉积体系及岩相古地理演化[J]. 地球学报, 2003, 24 (1): 49- 54. doi: 10.3321/j.issn:1006-3021.2003.01.008
	Shi Zhiqiang , Han Yonglin , Zhao Junxin , et al. Depositional system and paleogeographic evolution of the Middle Jurassic Yan'anian stage in the central and southern Ordos Basin[J]. Acta Geoscientica Sinica, 2003, 24 (1): 49- 54. doi: 10.3321/j.issn:1006-3021.2003.01.008
2	郭正权, 张立荣, 楚美娟, 等. 鄂尔多斯盆地南部前侏罗纪古地貌对延安组下部油藏的控制作用[J]. 古地理学报, 2008, 10 (1): 63- 71.
	Guo Zhengquan , Zhang Lirong , Chu Meijuan , et al. Pre-Jurassic palaeogeomorphic control on the hydrocarbon accumulation in the Lower Yan'an Formation in southern Ordos Basin[J]. Journal of Palaeogeography, 2008, 10 (1): 63- 71.
3	朱静, 李文厚, 韩永林, 等. 陇东地区前侏罗纪古地貌及油藏成藏规律研究[J]. 沉积学报, 2010, 28 (6): 1229- 1237.
	Zhu Jing , Li Wenhou , Han Yonglin , et al. Research on palaeogeomorphic features of pre-Jurassic and accumulation regularity of oil reservoir in the area of eastern Gansu, Ordos Basin[J]. Acta Sedimentologica Sinica, 2010, 28 (6): 1229- 1237.
4	李凤杰, 李磊, 林洪, 等. 鄂尔多斯盆地吴起地区侏罗系侵蚀古河油藏分布及控制因素[J]. 天然气地球科学, 2013, 24 (6): 1109- 1117.
	Li Fengjie , Li Lei , Lin Hong , et al. Distribution characteristics and controlling factors analyses on incised paleochannel reservoir of valley filling in Jurassic of Wuqi area, Ordos Basin[J]. Natural Gas Geoscience, 2013, 24 (6): 1109- 1117.
5	李永锋, 代波, 怀海宁, 等. 安塞油田南部侏罗系古地貌与延安组油气成藏关系[J]. 桂林理工大学学报, 2020, 40 (3): 486- 493. doi: 10.3969/j.issn.1674-9057.2020.03.004
	Li Yongfeng , Dai Bo , Huai Haining , et al. Paleomorphology of Jurassic in the southern area of Ansai Oilfield and its relationship with oil and gas accumulation in Yan'an Formation[J]. Journal of Guilin University of Technology, 2020, 40 (3): 486- 493. doi: 10.3969/j.issn.1674-9057.2020.03.004
6	赵虹, 党犇, 党永潮, 等. 鄂尔多斯盆地安塞志丹地区侏罗系延安组下部组合沉积演化及其对油气的控制[J]. 西北大学学报(自然科学版), 2020, 50 (3): 490- 500.
	Zhao Hong , Dang Ben , Dang Yongchao , et al. Depositional system and its evolution of the Lower Yan'an Formation Jurassic in Ansai district, Ordos Basin[J]. Journal of Northwest University (Natural Science Edition), 2020, 50 (3): 490- 500.
7	袁珍, 李文厚, 朱静, 等. 鄂尔多斯盆地陇东地区侏罗系古地貌恢复及其对石油聚集的影响[J]. 地质通报, 2013, 32 (11): 1806- 1814. doi: 10.3969/j.issn.1671-2552.2013.11.013
	Yuan Zhen , Li Wenhou , Zhu Jing , et al. The restoration of Pre-Jurassic paleogeomorphology and its influence on oil accumulation in Longdong area[J]. Geological Bulletin of China, 2013, 32 (11): 1806- 1814. doi: 10.3969/j.issn.1671-2552.2013.11.013
8	于雷, 王维斌, 车飞, 等. 鄂尔多斯盆地吴旗油区下侏罗统古地貌特征与油气富集关系[J]. 断块油气田, 2014, 21 (2): 147- 151.
	Yu Lei , Wang Weibin , Che Fei , et al. Lower Jurassic paleogeomorphology characteristics and relationship between oil and gas accumulation in Wuqi oil area of Ordos Basin[J]. Fault-Block Oil & Gas Field, 2014, 21 (2): 147- 151.
9	蒋代琴, 文志刚, 汤仁文, 等. 鄂尔多斯盆地吴起地区古地貌对侏罗系下部油藏形成和富集控制机制分析[J]. 地质力学学报, 2019, 24 (5): 627- 634.
	Jiang Daiqin , Wang Zhigang , Tang Renwen , et al. Analysis on the formation and enrichment control mechanism of the lower Jurassic reservoirs by paleo-geomorphology of Wuqi area in the Ordos Basin[J]. Journal of Geomechanics, 2019, 24 (5): 627- 634.
10	王霞, 刘凤林, 范柏江, 等. 鄂尔多斯盆地吴起曾岔地区前侏罗纪古地貌与油藏成藏规律[J]. 兰州大学学报(自然科学版), 2020, 56 (1): 8- 15.
	Wang Xia , Liu Fenglin , Fan Baijiang , et al. Palaeogeomorphic features of pre-Jurassic and accumulation regularity of oil reservoir of Zengcha area in Wuqi County, Ordos Basin[J]. Journal of Lanzhou University (Natural Sciences), 2019, 24 (5): 627- 634.
11	董桂玉, 何幼斌. 陆相断陷盆地基准面调控下的古地貌要素耦合控砂机制[J]. 石油勘探与开发, 2016, 43 (4): 529- 539.
	Dong Guiyu , He Youbin . Mechanism of sand body prediction in a continental rift basin by coupling paleogeomorphic elements under the control of base level[J]. Petroleum Exploration and Development, 2016, 43 (4): 529- 539.
12	蒙启安, 李跃, 李军辉. 复杂断陷盆地源-汇时空耦合控砂机制分析——以海拉尔盆地贝尔凹陷为例[J]. 中国矿业大学学报, 2019, 48 (2): 344- 352.
	Meng Qian , Li Yue , Li Junhui , et al. Analysis of source and convergence coupling control sand mechanism in complicated faulted basin: An example of Beier depression in Hailar basin[J]. Journal of China University of Mining & Technology, 2019, 48 (2): 344- 352.
13	刘池洋, 赵红格, 桂小军, 等. 鄂尔多斯盆地演化-改造的时空坐标及其成藏(矿)响应[J]. 地质学报, 2006, 80 (5): 617- 638. doi: 10.3321/j.issn:0001-5717.2006.05.001
	Liu Chiyang , Zhao Hongge , Gui Xiaojun , et al. Space-time coordinate of the evolution and reformation and mineralization response in Ordos Basin[J]. Acta Geologica Sinica, 2006, 80 (5): 617- 638. doi: 10.3321/j.issn:0001-5717.2006.05.001
14	Chen G , Sun J B , Zhou L F , et al. Fission-track-age records of the Mesozoic tectonic-events in the southwest margin of the Ordos Basin, China[J]. Science in China (Series D), 2007, 50 (2): 133- 143.
15	张园园, 任战利, 何发岐, 等. 克拉通盆地构造转折区中-新生界构造特征及其控藏意义——以鄂尔多斯盆地西南部镇泾地区延长组为例[J]. 岩石学报, 2020, 36 (11): 3537- 3549. doi: 10.18654/1000-0569/2020.11.18
	Zhang Yuanyuan , Ren Zhanli , He Faqi , et al. Meso-Cenozoic structural characteristics and their reservoir controls of structural transition area in China Craton: A case study of Yanchang Formation in Zhenjing area of southwestern Ordos Basin[J]. Acta Petrologica Sinica, 2020, 36 (11): 3537- 3549. doi: 10.18654/1000-0569/2020.11.18
16	Dong Y P , Yang Z , Liu X M , et al. Mesozoic intracontinental orogeny in the Qinling, Mountains, Central China[J]. Gondwana Research, 2016, 30, 144- 158. doi: 10.1016/j.gr.2015.05.004
17	丁熊, 田景春, 姚泾利, 等. 鄂尔多斯盆地延长组长10₁期沉积特征[J]. 岩性油气藏, 2015, 27 (4): 26- 30.
	Ding Xiong , Tian Jingchun , Yao Jingli , et al. Sedimentary characteristics of sandstone in Chang 10₁ stage of Yanchang Formation in Ordos Basin[J]. Lithologic Reservoirs, 2015, 27 (4): 26- 30.
18	李元昊, 杨桂茹, 彭建, 等. 鄂尔多斯盆地前侏罗纪古地貌形成演化及沉积充填特征[J]. 世界地质, 2020, 39 (1): 56- 71. doi: 10.3969/j.issn.1004-5589.2020.01.005
	Li Yuanhao , Yang Guiru , Peng Jian , et al. Formation and evolution of pre-Jurassic palaeogeomorphology and characteristics of sedimentary filling in Ordos Basin[J]. Global Geology, 2020, 39 (1): 56- 71. doi: 10.3969/j.issn.1004-5589.2020.01.005
19	刘强虎, 朱筱敏, 李顺利, 等. 沙垒田凸起西部断裂陡坡型源-汇系统[J]. 地球科学, 2017, 42 (11): 1883- 1896.
	Liu Qianghu , Zhu Xiaomin , Li Shunli , et al. Source-to-sink system of the steep slope fault in the western Shaleitian Uplift[J]. Earth Science, 2017, 42 (11): 1883- 1896.
20	谈明轩, 朱筱敏, 张自力, 等. 古"源-汇"系统沉积学问题及基本研究方法简述[J]. 石油与天然气地质, 2020, 41 (5): 1107- 1118.
	Tan Mingxuan , Zhu Xiaomin , Zhang Zili , et al. Liu Wei, Zhao Hongchao, Su Bin.Summary of sedimentological issues and fundamental approaches in terms of ancient "Source-to-Sink" systems[J]. Oil & Gas Geology, 2020, 41 (5): 1107- 1118.
21	杜晓峰, 王清斌, 庞小军, 等. 渤中凹陷石南陡坡带东三段源汇体系定量表征[J]. 岩性油气藏, 2018, 30 (5): 1- 10.
	Du Xiaofeng , Wang Qinbin , Pang Xiaojun , et al. Quantitative characterization of source-sink system of Ed₃ in Shinan steep slope zone, Bozhong Depression[J]. Lithologic Reservoirs, 2018, 30 (5): 1- 10.
22	万志云. 珠江口盆地恩平凹陷文昌组古沟谷体系与砂体展布分析[D]. 湖北武汉: 中国地质大学(武汉), 2012.
	Wang Zhiyun. Analysis of ancient valley system and sand body distribution of Wenchang Formation in Enping Sag, Pearl River Mouth Basin[D]. Wuhan: China University of Geoscience (Wuhan), 2012.
23	王建强, 刘池洋, 赵红格, 等. 鄂尔多斯盆地西南部三叠纪末抬升剥蚀事件及热年代学记录[J]. 岩石学报, 2020, 36 (4): 1199- 1212.
	Wang Jianqiang , Liu Chiyang , Zhao Hongge , et al. Uplift and exhumation events and thermochronological constraints at the end of Triassic in southwestern Ordos Basin[J]. Acta Petrologica Sinica, 2020, 36 (4): 1199- 1212.
24	Xia Dongling , Wu Yue , Zou Min , et al. Quality characterization of tight sandstone reservoirs in the Yanchang Formation of the Honghe oilfield, Ordos Basin, central China[J]. Energy Geoscience, doi: 10.1016/j.engeos.2021.07.001
25	徐兴雨, 王伟锋, 陈谋. 鄂尔多斯盆地断裂特征及其石油地质意义[J]. 中国矿业大学学报, 2019, 48 (4): 830- 841.
	Xu Xingyu , Wang Weifeng , Chen mou . Characteristics of faults and their significance in hydrocarbon accumulation in Ordos Basin[J]. Journal of China University of Mining & Technology, 2019, 48 (4): 830- 841.
26	Yuan Hui , Yin Shuai , Dong Li , et al. Restoration of the pre-Jurassic paleogeomorphology and its control on hydrocarbon distribution in western Ordos Basin[J]. Energy Geoscience, doi: 10.1016/j.engeos.2021.06.007
27	王猛. 鄂尔多斯盆地镇原-泾川地区中生界断裂发育[J]. 断块油气田, 2019, 26 (02): 142- 146.
	Wang Meng . Mesozoic fracture development characteristics of Zhen-yuan-Jingchuan area, Ordos Basin[J]. Fault-Block Oil and Gas Field, 2019, 26 (02): 142- 146.
28	石文龙, 杨波, 李慧勇, 等. 沙垒田凸起围区古近系源-汇体系[J]. 断块油气田, 2019, 26 (03): 279- 284.
	Shi Wenlong , Yang Bo , Li Huiyong , et al. Paleogene source-to-sink system of surrounding slope area of Shaleitian Uplift[J]. Fault-Block Oil and Gas Field, 2019, 26 (03): 279- 284.
29	屈红军, 蒲仁海, 陈硕, 等. 相-势耦合控制鄂尔多斯盆地中生界石油聚集[J]. 石油与天然气地质, 2019, 40 (4): 752- 762.
	Qu Hongjun , Pu Renhai , Chen Shuo , et al. Controls of facies potential coupling on oil accumulation in the Mesozoic Ordos Basin[J]. Oil & Gas Geology, 2019, 40 (4): 752- 762.

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