东营凹陷中央隆起带西段“帚状生长断层系”发育特征及成因机制

许淑梅; 马云; 王金铎; 于建国; 高平; 季建清

doi:10.3724/SP.J.1140.2011.06075

东营凹陷中央隆起带西段“帚状生长断层系”发育特征及成因机制

许淑梅^1,2,
马云²,
王金铎³,
于建国⁴,
高平⁴,
季建清⁵

1 海底科学与探测技术教育部重点实验室, 青岛 266100;
2 中国海洋大学海洋地球科学学院, 青岛 266100;
3 中石化胜利油田西部研究中心, 东营 257001;
4 中石化胜利油田分公司物探研究院, 东营 257022;
5 北京大学地球与空间科学学院, 北京 100871

详细信息

作者简介:
许淑梅(1970-),女,博士,副教授,主要从事沉积学及层序地层的教学和研究工作,E-mail:xsm@ouc.edu.cn

中图分类号: P736
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出版历程
- 收稿日期: 2011-05-19
- 修回日期: 2011-10-13

CHARACTERISTICS AND GENETIC MECHANISM OF “BROOM-LIKE SYN-DEPOSITIONAL FAULTS” IN WEST SEGMENT OF CENTRAL UPLIFT BELT IN DONGYING DEPRESSION

1 Key Laboratory of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Qingdao 266100;
2 College of Marine Geosciences, Ocean University of China, Qingdao 266100;
3 Xibu Research Institute, Shengli Oilfield, SINOPEC, Dongying 257001;
4 ShengLi Oilfield Company Ltd, Geophysics Research Institute, Dongying 257022;
5 School of Earth and Space Sciences, Peking University, Beijing 100871

摘要

摘要: 通过对东营凹陷中央隆起带西段帚状生长断层系中"帚状分散系"和"主干断层"生长指数的计算,分析了研究区"帚状生长断层"中不同组系断层的发育特征,认为帚状生长断层中"主干断层"和"帚状分散系"具有"非等时性"特点,"帚状分散系"在中始新统沙河街组三段沉积期生长指数最大,"主干断层"在上始新统沙河街组二段沉积期生长指数最大。研究区"帚状生长断层"系内不发育断角砂体,沉积中心不稳定,中始新世沙河街三段沉积期沉积中心位于"帚状分散系"的上盘,晚始新世沙河街二段沉积期则迁移至"主干断层"的上盘。这些特征表证明其并非真正帚状生长断层,本文称之为"似帚状生长断层"。论文讨论了"似帚状生长断层"活动对沉积的控制作用,并结合区域构造特征探讨了"似帚状生长断层"的形成机制。根据前述"似帚状生长断层"对沉积的控制作用,结合区域构造特征,论文注重探讨了"似帚状生长断层"的形成机制。中始新世Es³中+Es³下亚段沉积期以近SN向张应力为主,形成近EW向生长断层,至晚始新世Es³上亚段+Es²段沉积期以NW向张应力为主,形成NE向生长断层。中始新世近EW向生长断层发育,晚始新世NE向生长断层发育且走滑构造活动作用加强,使得不同时期的生长断层在空间上组合形成"似帚状生长断层"。"似帚状生长断层"对沉积的控制作用明显不同于真正意义上的帚状生长断层,这一点在对高勘探程度渤海湾盆地的研究过程中应引起充分的重视。
- “似帚状生长断层” /
- 生长系数 /
- 成因机制 /
- 中央隆起带 /
- 东营凹陷
Abstract: The development characteristic of the "broom like faults" in the west segment of the central uplift zone in the Dongying Depression was discussed in this paper by calculating the growth coefficient of the faults. Our results show that the main faults and the subsidiaries of the "Broom like faults" are not synchronous according to their growth index. The subsidiary faults have their highest growth index in the 3rd Member of the Shahejie Formation of mid Eocene, while the main faults have that in the 2st Member of Shahejie Formation of late Eocene. There found no sand bodies formed in the fracture angle between the main faults and the subsidiary faults. The depocenter is not stable but migrate from the hanging wall of the subsidiary faults during mid Eocene to the hanging wall of the main faults during late Eocene. These characters are different from those of the real "broom like faults". In the case of the real "broom-like faults", main faults are formed synchronously with the subsidiaries, and the depocenter is rather stable and located in the fracture angle between the main fault and the subsidiary fault. Therefore, we call this kind of faults the "quasi-broom like faults". The genetic mechanism of the "quasi-broom like faults" and the influence of the activity of "quasi-broom like faults" on sedimentary patterns are probed in this paper. It is concluded that the "quasi-broom like faults" were the result of the joint action of the independent extensional tectonic system and the SN strike and strike-slip system in NE direction.
The stage of Cenozoic faulting in the Jiyang Depression can be divided into two episodes according to the differences in tectonic stress fields. In the first episode during the early to mid Eocene, the Dongying Sag was under a N-S extensional tectonic stress field which caused the formation of E-W trending growth faults, while in the second episode during the late Eocene, the Dongying Sag was under the control of a NW-SE trending extensional tectonic stress field, which caused the formation of the NE-SW trending growth faults. The proper spatial combination of the E-W trending growth faults and the NE-SW trending growth faults due to the sinistral movement of the Tanlu Fault during the Eocene caused the "quasi-broom like faults" to take shape. The influences of the "quasi-broom like faults" on deposition pattern are far different from those of real broom like faults, so it is a must to pay much attention to the influence of "quasi-broom like faults" on sedimentation, in highly explorated basins, such as the Bohai Bay Basin.
- quasi-broom like faults /
- growth coefficient /
- genetic mechanism /
- central uplift belt /
- Dongying Depression

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参考文献(23)

[1]	任建业, 张青林. 东营凹陷中央隆起带形成机制分析[J]. 大地构造与成矿学, 2004, 8(3):254-262. [REN Jianye, ZHANG Qinglin. Analysis of Development Mechanism for Center Anticline High in Dongying Depression[J]. Geotectonica et Metallogenia, 2004, 8(3):254-262.]
[2]	于建国, 李三忠, 王金铎,等. 东营凹陷盐底辟作用与中央隆起带断裂构造成因[J]. 地质科学, 2005, 40(1):55-68. [YU Jianguo, LI Sanzhong, WANG Jinduo et al. Salt Diapirism and Faulting of the Central Uplift Belt in the Dongying Sag, Bohai Bay Basin, North China[J]. Chinese Journal of Geology, 2005, 40(1):55-68.]
[3]	李丕龙, 翟庆龙, 荣启宏. 东营凹陷中央背斜带油气运聚特征[J]. 石油勘探与开发, 2000, 27(4):64-68. [LI Pilong, ZHAI Qinglong, RONG Qihong. Characteristics of the Oil-Gas Migration In Center Anticline High in Dongying Depression[J]. Petroleum Exploration and Development, 2000, 27(4):64-68.]
[4]	林畅松, 郑和荣, 任建业. 渤海湾盆地东营沾化凹陷早第三纪同沉积断裂对沉积充填的控制[J]. 中国科学D辑, 2003, 33(11):1025-1036. [LIN Changsong, ZHENG Herong, REN Jianye. In Early Cenozoic in Dongying and Zhanhua Sag, the Bohai Bay Basin[J].Science in China(Series D), 2003, 33(11):1025-1036.]
[5]	Bryan D, Jason J. Tectonostratigraphy of the Nieuwerkerk Formation (Delfland subgroup), West Netherlands Basin[J]. AAPG Bulletin, 2002,86(10):1679-1709.
[6]	Wood L J. Chronostratigraphy and Tectonostratigraphy of the Columbus Basin, eastern offshore Trinidad[J]. AAPG Bulletin, 2000,84(14):1905-1929.
[7]	Pavelic D. Tectonostratigraphic model for the North Croation and North Bosnian sector of the Miocene Pannonian Basin System[J]. Basin Research, 2001, 13(3):359-376.
[8]	马丽娟, 解习农, 任建业. 东营凹陷古构造对下第三系储集体的控制作用[J]. 石油勘探与开发, 2002, 29(2):64-67. [MA Lijuan, XIE Xinong, REN Jianye. Controlling of the Dongying Sag Structure On The Teritary Sedimentary Sands Bodies[J]. Petroleum Exploration and Development, 2002, 29(2):64-67.]
[9]	付瑾平.箕状凹陷陡坡带砂砾岩扇体空间展布及成藏规律——以东营凹陷为例[J]. 复式油气田, 1998(3):8-11.[FU Jinping. Space Distribution and Pool Forming Rule of Sandy Conglomerate Fun Body of in Steep Region of the Faulted Basin[J]. Compound Oil-Gas Field, 1998 (3):8-11.]
[10]	陆克政. 构造地质学教程[M]. 东营:石油大学出版社, 2005.[LU Kezheng. Course of Tectonic Geology[J]. Dongying:Petroleum University Press, 2005.]
[11]	冯有良. 东营凹陷下第三系层序地层格架及盆地充填模式[J]. 地球科学, 1999, 24(6):635-642. [FENG Youliang. Lower Territiary Sequence Stratigraphic Framework and Basin Filling Model in Dongying Depression[J]. Earth Science-Journal of China University of Geosciences, 1999, 24(6):635-642.]
[12]	戴俊生, 漆家福, 陆克政. 渤海湾盆地早第三纪构造样式与油气藏的关系[J]. 石油大学学报:自然科学版, 1998, 22(2):1-5. [DAI Junsheng, QI Jiafu, LU Kezheng. Relationship Between Structural Styles and Oil-Gas Reservoir in Paleocene Period at Bohai Bay Basin[J].Journal of the University of Petroleum, China, 1998, 22(2):1-5.]
[13]	漆家福, 张一伟, 陆克政. 渤海湾盆地新生代构造演化[J]. 石油大学学报:自然科学版, 1995, 19(增刊):1-6.[QI Jiafu, ZHANG Yiwei, LU Kezheng. Tectonic Evolution in Cenozoic Of the Bohai bay Basin[J]. Journal of the University of Petroleum, China, 1995 , 19(suppl.):1-6.]
[14]	洪宇, 黄国平, 张金报. 东濮凹陷东倾同沉积断层与油气聚集[J]. 油气地质与采收率, 2003, 10(5):19-21. [HONG Yu, HUANG Guoping, ZHANG Jinbao. The East Inclined Synsedimentary fault and Oil-gas Accumulation in Dongpu Sag[J]. Petroleum Geology and Recovery Efficiency, 2003, 10(5):19-21.]
[15]	张凡芹, 王伟锋, 戴俊生. 沾化凹陷断层活动性及其对层序发育的控制作用[J]. 石油与天然气地质, 2003, 24(3):253-259. [ZHANG Fanqin, WANG Weifeng, DAI Junsheng. Fault Activities and Their Controls on the Development of Lithologic Sequence in Zhanhua Sag[J].Oil and Gas Geology, 2003, 24(3):253-259.]
[16]	程日辉, 林畅松, 崔宝琛. 沉积型式与构造控制研究进展[J]. 地质科技情报, 2000, 19(1):11-15. [CHENG Rihui, LIN Changsong, CUI Baoshen. Adveances in the Study of Sedimentation and the Tectonic Control[J]. Geological Science and Technology Information, 2000, 19(1):11-15.]
[17]	杨明慧, 刘池阳, 孙冬胜. 冀中坳陷北区古近纪构造沉积关系双向研究[J]. 西安石油学院学报:自然科学版, 2002, 17(6):12-16. [YANG Huiming, LIU Chiyang, SUN Dongsheng. Coupling Relationship Between Structure and Sedimentation in the North of Jizhong Basin During Paleogene[J]. Journal of Xi`an Petroleum Institute (Natural Science Edition), 2002, 17(6):12-16.]
[18]	陶晓风, 刘登忠, 朱利东. 陆相盆地沉积作用与构造作用的关系[J]. 沉积学报, 2001, 19(3):410-414. [TAO Xiaofeng, LIU Dengzhong, ZHU Lidong. Relationship between Sedimentary Process in Terrestrial Basin and Tectonic Process[J]. Acta Sedimentologyica Sinica, 2001, 19(3):410-414.]
[19]	于正军. 东营凹陷浊积岩沉积特征及描述技术[C]//胜利油田论文汇编. 2006:12.[YU Zhengjun. Technique of Sedimentary Characteristic of the turbidite in Dongying Sag[C]//Paper Collection of the Shengli Oil Field. 2006:12.]
[20]	漆家福. 渤海湾新生代盆地的两种构造系统及其成因解释[J].中国地质, 2004, 31(1):15-27. [QI Jiafu. Two Tectonic Systems in the Cenozoic Bohai Bay Basin and Their Dgenetic Interpretation[J]. Geology in China, 2004, 31(1):15-27.]
[21]	何斌. 渤海湾复式盆地动力学探讨[J]. 石油试验地质, 2001, 23(1):27-32. [HE Bin. On Dynamics Of The Bohai Bay Complex Faulted Basin[J]. Petroleum Geology and Experiment, 2001, 23(1):27-32.]
[22]	谢向阳, 信荃麟. 东营凹陷中央隆起带断块模式[J]. 断块油气田, 1997, 4(5):15-20. [XIE Xiangyang, XIN Quanlin. Fault-Block Modes in the Central Uplift of Dongying Sag[J]. Fault-Block Oil-Gas Field, 1997, 4(5):15-20.]
[23]	韩文功, 季建清, 王金铎,等. 郯庐断裂带古新世-早始新世左旋走滑活动的反射地震证据[J]. 自然科学进展, 2005, 15(11):1383-1389. [HAN Wengong, JI Jianqing, WANG Jinduo, et al. Scismic reflection Evidence of left-lateral strike-slip of Tan-Lu Fault Zone From Paleocene to the Early Eocene[J]. Natural Science Development, 2005, 15(11):1383-1389.]