柴达木盆地西部新生界水平裂缝及其构造意义

doi:10.11743/ogg20200610

Abstract

Abstract:

Fractures in rocks record critical information of crustal tectonic evolution.Outcrop, core and thin section observations show the Cenozoic mudstone of western Qaidam Basin is abundant in open horizontal fractures with rough surface and gypsum fill.These fractures are mainly curve-shaped and occasionally straight in geometry.T-shaped intersections probably formed by the intense interaction between adjacent curved horizontal fractures are observed.The aperture of the fractures mainly ranges from 1 to 10 mm with the maximum value of 30 mm.Both the scale and linear density of the fractures reduce with the decrease of erosional quantity and increase of burial depth.Furthermore, the fractures are restricted in the hinge zone of intensively denuded anticlines.All evidences above indicate that the fractures are linked to the vertical extension induced by residual stress during a rapid uplift and erosion of strata, and probably formed after a tectonic compression as they are observed to incise most early-formed vertical fractures.Given the electron spin resonance (ESR) spectroscopy dating data of gypsum, the generation of horizontal fractures mainly includes two stages:the first stage occurred at about 1.8Ma and the second 0.3Ma.The fractures formed at the second stage are much larger in scale and higher in intensity compared with those at the first stage.The initial driving force for the formation of the fractures calculated based on crack strain indicates that the erosional volume at the second stage is 2-3 times more than that at the first stage.Evidences also reveal that impulse compressional uplift and erosion activities in the western Qaidam Basin occurred during the Quaternary with an ever-growing tendency in intensity, indicating a progressively increasing episodic tectonic activities in the Tibet Plateau since the Quaternary.

Key words: mudstone, extensional fracture, tectonic uplift and erosion, horizontal fracture, Cenozoic, Qaidam Basin

CLC Number:

TE122.2

Jian Li, Lianbo Zeng, Yu Lin, Guoping Liu, Dongsheng Cao, Zhaosheng Wang. Horizontal fractures of the Cenozoic in western Qaidam Basin and their tectonic implication[J]. Oil & Gas Geology, 2020, 41(6): 1222-1232.

Figures/Tables 10

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References 41

1	Sibson R H . Fault rocks and fault mechanisms[J]. Journal of the Geological Society, 1977, 133 (3): 191- 213. doi: 10.1144/gsjgs.133.3.0191
2	Hindle A D . Petroleum migration pathways and charge concentration:A three-dimensional model[J]. AAPG Bulletin, 1997, 81 (9): 1451- 1481.
3	Hao F , Li S , Gong Z , et al. Thermal regime, interreservoir compositional heterogeneities, and reservoir-filling history of the Dongfang Gas Field, Yinggehai Basin, South China Sea:evidence for episodic fluid injections in overpressured basins?[J]. AAPG Bulletin, 2000, 84 (5): 607- 626.
4	李明诚. 石油与天然气运移[M]. 北京: 石油工业出版社, 2004: 54- 58.
	Li Mingcheng . Migration of oil and gas[M]. Beijing: China Petroleum Industry Press, 2004: 54- 58.
5	高帅, 巩磊, 刘小波, 等. 松辽盆地北部深层致密火山岩气藏天然裂缝分布特征及控制因素[J]. 石油与天然气地质, 2020, 41 (3): 503- 512.
	Gao Shuai , Gong Lei , Liu Xiaobo , et al. Distribution and controlling factors of natural fractures in deep tight volcanic gas reservoirs in Xujiaweizi area, Northern Songliao Basin[J]. Oil & Gas Geology, 2020, 41 (3): 503- 512.
6	冯建伟, 孙建芳, 张亚军, 等. 塔里木盆地库车坳陷断层相关褶皱对裂缝发育的控制[J]. 石油与天然气地质, 2020, 41 (3): 543- 557.
	Feng Jianwei , Sun Jianfang , Zhang Yajun , et al. Control of fault-related folds on fracture development in Kuqa Depression, Tarim Basin[J]. Oil & Gas Geology, 2020, 41 (3): 543- 557.
7	Zeng L , Tang X , Qi J , et al. Insight into the Cenozoic tectonic evolution of the Qaidam Basin, Northwest China from fracture information[J]. International Journal of Earth Sciences, 2012a, 101 (8): 2183- 2191. doi: 10.1007/s00531-012-0779-y
8	Zeng L , Tang X , Wang T , et al. The influence of fracture cements in tight Paleogene saline lacustrine carbonate reservoirs, western Qaidam Basin, northwest China[J]. AAPG Bulletin, 2012b, 96 (11): 2003- 2017. doi: 10.1306/04181211090
9	Yin A , Harrison T M . Geologic evolution of the Himalayan-Tibetan orogen[J]. Annual Review of Earth and Planetary Sciences, 2000, 28 (1): 211- 280. doi: 10.1146/annurev.earth.28.1.211
10	Johnson M R W . Shortening budgets and the role of continental subduction during the India-Asia collision[J]. Earth-Science Reviews, 2002, 59 (1-4): 101- 123. doi: 10.1016/S0012-8252(02)00071-5
11	Harrison T M , Copeland P , Kidd W S F , et al. Raising tibet[J]. Science, 1992, 255 (5052): 1663- 1670. doi: 10.1126/science.255.5052.1663
12	Fielding E J . Tibet uplift and erosion[J]. Tectonophysics, 1996, 260 (1-3): 55- 84. doi: 10.1016/0040-1951(96)00076-5
13	Zhou J , Xu F , Wang T , Wang T , et al. Cenozoic deformation history of the Qaidam Basin, NW China:Results from cross-section restoration and implications for Qinghai-Tibet Plateau tectonics[J]. Earth and Planetary Science Letters, 2006, 243 (1-2): 195- 210. doi: 10.1016/j.epsl.2005.11.033
14	Yin A , Dang Y Q , Wang L C , et al. Cenozoic tectonic evolution of Qaidam basin and its surrounding regions(Part 1):The southern Qilian Shan-Nan Shan thrust belt and northern Qaidam basin[J]. Geological Society of America Bulletin, 2008, 120 (7-8): 813- 846. doi: 10.1130/B26180.1
15	Song T , Wang X . Structural styles and stratigraphic patterns of syndepositional faults in a contractional setting:Examples from Quaidam Basin, Northwestern China[J]. AAPG Bulletin, 1993, 77 (1): 102- 117.
16	焦小芹, 牛花朋, 谢庆宾, 等. 柴达木盆地尖北斜坡基岩储层特征及天然气成藏条件[J]. 石油与天然气地质, 2020, 41 (2): 305- 315.
	Jiao Xiaoqin , Niu Huapeng , Xie Qingbin , et al. Characteristics of basement reservoirs and setting for natural gas accumulation in Jianbei slope, Qaidam Basin[J]. Oil & Gas Geology, 2020, 41 (2): 305- 315.
17	Yin A , Dang Y Q , Zhang M , et al. Cenozoic tectonic evolution of the Qaidam basin and its surrounding regions(Part 3):Structural geology, sedimentation, and regional tectonic reconstruction[J]. Geological Society of America Bulletin, 2008, 120 (7-8): 847- 876. doi: 10.1130/B26232.1
18	Qinmin W , Coward M P . The Chaidam basin(NW China):formation and hydrocarbon potential[J]. Journal of Petroleum Geology, 1990, 13 (1): 93- 112. doi: 10.1111/j.1747-5457.1990.tb00255.x
19	Arnaud N O , Brunel M , Cantagrel J M , et al. High cooling and denudation rates at Kongur Shan, eastern Pamir(Xinjiang, China) revealed by 40Ar/39Ar alkali feldspar thermochronology[J]. Tecto-nics, 1993, 12 (6): 1335- 1346.
20	王军. 西昆仑卡日巴生岩体和苦子干岩体的隆升[J]. 地质论评, 1998, 44 (4): 435- 442.
	Wang Jun . Uplift of the Karibasheng and Kuzugan granite in the west Kunlun Mountains[J]. Geological Review, 1998, 44 (4): 435- 442.
21	Wang E , Wan J , Liu J . Late Cenozoic geological evolution of the foreland basin bordering the West Kunlun range in Pulu area:Constraints on timing of uplift of northern margin of the Tibetan Plateau[J]. Journal of Geophysical Research:Solid Earth, 2003, 108 (B8): 148- 227.
22	Cowgill E . Cenozoic right-slip faulting along the eastern margin of the Pamir salient, northwestern China[J]. GSA Bulletin, 2010, 122 (1-2): 145- 161. doi: 10.1130/B26520.1
23	Sobel E R , Chen J , Schoenbohm L M , et al. Oceanic-style subduction controls late Cenozoic deformation of the Northern Pamir orogen[J]. Earth and Planetary Science Letters, 2013, 363, 204- 218. doi: 10.1016/j.epsl.2012.12.009
24	Cao K , Bernet M , Wang G C , et al. Focused Pliocene-Quaternary exhumation of the Eastern Pamir domes, western China[J]. Earth and Planetary Science Letters, 2013, 363, 16- 26. doi: 10.1016/j.epsl.2012.12.023
25	潘家伟, 李海兵, 孙知明, 等. 青藏高原西北部晚第四纪以来的隆升作用——来自西昆仑阿什库勒多级河流阶地的证据[J]. 岩石学报, 2013, 29 (6): 2199- 2210.
	Pan Jiawei , Li Haibing , Sun Zhiming , et al. Late Quaternary uplift of the northwestern Tibetan Plateau:Evidences from river terraces in the Ashikule area, West Kunlun Mountain[J]. Acta Petrologica Sinica, 2013, 29 (6): 2199- 2210.
26	于祥江, 郭召杰, 张道伟, 等. 第四纪悸动:来自柴达木盆地构造增强的证据及其对多圈层的响应[J]. 第四纪研究, 2018, 38 (1): 39- 53.
27	Yu Xiangjiang , Guo Zhaojie , Zhang Daowei , et al. Quaternary shaking:evidences of tectonic intensification from the Qaidam Basin and its influence on multi-spherical interaction[J]. Quaternary Sciences, 2018, 38 (1): 39- 53.
28	金之钧, 张明利, 汤良杰, 等. 柴达木中新生代盆地演化及其控油气作用[J]. 石油与天然气地质, 2004, 25 (6): 603- 608.
	Jin Zhijun , Zhang Mingli , Tang Liangjie , et al. Evolution of Meso-Cenozoic Qaidam basin and its control on oil and gas[J]. Oil and Gas Geology, 2004, 25 (6): 603- 608.
29	Wang Y , Zheng J , Zhang W , et al. Cenozoic uplift of the Tibetan Plateau:Evidence from the tectonic-sedimentary evolution of the western Qaidam Basin[J]. Geoscience Frontiers, 2012, 3 (2): 175- 187. doi: 10.1016/j.gsf.2011.11.005
30	叶得泉, 钟筱春, 姚益民, 等. 中国油气区第三系I总论[M]. 北京: 石油工业出版社, 1993: 104- 108.
	Ye Dequan , Zhong Xiaochun , Yao Yimin , et al. Tertiary in petroliferous regions of China[M]. Beijignjing: China Petroleum Industry Press, 1993: 104- 108.
31	Olson J , Pollard D D . Inferring paleostresses from natural fracture patterns:A new method[J]. Geology, 1989, 17 (4): 345- 348. doi: 10.1130/0091-7613(1989)017<0345:IPFNFP>2.3.CO;2
32	Thomas A L , Pollard D D . The geometry of echelon fractures in rock:implications from laboratory and numerical experiments[J]. Journal of Structural Geology, 1993, 15 (3-5): 323- 334. doi: 10.1016/0191-8141(93)90129-X
33	Olson J E . Joint pattern development:Effects of subcritical crack growth and mechanical crack interaction[J]. Journal of Geophysical Research:Solid Earth, 1993, 98 (B7): 12251- 12265. doi: 10.1029/93JB00779
34	Bahat D . Single-layer burial joints vs single-layer uplift joints in Eocene chalk from the Beer Sheva syncline in Israel[J]. Journal of Structural Geology, 1999, 21 (3): 293- 303. doi: 10.1016/S0191-8141(98)00118-7
35	Warburton P M.A stereological interpretation of joint trace data[C].International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts.Pergamon, 1980, 17(4): 181-190.
36	陈正乐, 高荐, 张岳桥, 等. 阿尔金断裂中段晚新生代构造变形的ESR测年证据[J]. 地质论评, 2002, (S1): 140- 145.
	Chen Zhengle , Gao Jian , Zhang Yueqiao , et al. Electron Spin Resonance Dating of the Late Cenozoic deformation along the Central Altun Fault[J]. Geological Review, 2002, (S1): 140- 145.
37	Lajtai E Z . A mechanistic view of some aspects of jointing in rocks[J]. Tectonophysics, 1977, 38 (3-4): 327- 338. doi: 10.1016/0040-1951(77)90218-9
38	Scholz C H . A note on the scaling relations for opening mode fractures in rock[J]. Journal of Structural Geology, 2010, 32 (10): 1485- 1487. doi: 10.1016/j.jsg.2010.09.007
39	张倬元, 王士天, 王兰生, 等. 工程地质分析原理[M]. 北京: 地质出版社, 2009: 54- 59.
	Zhang Zhuoyuan , Wang Shitian , Wang Lansheng , et al. Principle of engineering geological analysis[M]. Beijing: Geological Publishing House, 2009: 54- 59.
40	Walsh J B . The effect of cracks on the uniaxial elastic compression of rocks[J]. Journal of Geophysical Research, 1965, 70 (2): 399- 411. doi: 10.1029/JZ070i002p00399
41	Segall P , Pollard D D . Joint formation in granitic rock of the Sierra Nevada[J]. Geological Society of America Bulletin, 1983, 94 (5): 563- 575. doi: 10.1130/0016-7606(1983)94<563:JFIGRO>2.0.CO;2

测量剖面	咸水泉剖面破裂应变	南翼山剖面破裂应变
A—A′	0.045 9	0.012 8
B—B′	0.043 7	0.016 1
C—C′	0.030 1	0.015 1
平均值	0.039 9	0.014 7

	咸水泉剖面	南翼山剖面
ε_f^c	0.039 9	0.014 7
ρ_f/(kg·m^-3)	1.425	0.863
E/GPa	5.5	4.8
ν	0.19	0.20
σ_i上限/MPa	244.9	80.9
σ_i下限/MPa	25.4	13.5

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Horizontal fractures of the Cenozoic in western Qaidam Basin and their tectonic implication

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