TECTONIC EVOLUTION AND FORMING MECHANISM OF THE SOUTHERN LIAOZHONG SAG, LIAODONG BAY DEPRESSION
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摘要: 基于最新的三维地震连片资料，通过对辽中南洼断裂体系和地层发育特征的精细解释，明确了辽中南洼的构造发育演化特征，探讨了成因机制。结果表明：辽中南洼发育走滑和伸展2类断裂，主干走滑断裂整体NNE走向，深浅均有发育；伸展断裂主要发育在深部，被走滑断裂切割改造。受控于走滑和伸展作用在不同地区的作用强弱差异，辽中南洼整体东西分带、南北分段，自西向东辽中南洼可以划分为西部斜坡带、中部走滑带和东部斜坡带，东、西两个斜坡带为典型的伸展半地堑，走滑断裂条数的变化、中央走滑断裂的走向弯曲造成了中部走滑带的南北分段性。辽中南洼新生代构造演化可以划分为古近纪孔店组—沙四段沉积期、沙三段—沙一段沉积期、东营组沉积期、新近纪—第四纪4个阶段，经历了伸展断陷、构造转型、走滑—断拗转换、走滑—拗陷的构造演化过程，体现了伸展和走滑作用强弱的时间差异。辽中南洼现今复杂多样而又独特的构造特征并不单纯受控于单一构造背景，而是形成于伸展和走滑应力在时间和空间上的差异复合作用。Abstract: Based on the conventional interpretation of latest 3D seismic data, the tectonic evolution of the southern Liaozhong Sag is analyzed, and the formation mechanism discussed. The results indicate that two main types of faults, i.e. the strike-slip faults and the extensional faults, are developed in the study area. The strike-slip faults extend primarily along the strike of strata in NNE and cut through both the deep and shallow sequences, while the extensional faults are developed in the deep sequences and complicated by the formers. Under the combined influence of strike-slip shearing and extensional stress, the southern Liaozhong Sag are divided into the western half-graben slope zone, the central strike-slip zone and the eastern half-graben slope zone from west to east, and the central strike-slip zone is further sub-divided into south and north parts according to the change in the quantity and curvature of the central strike-slip faults. The Cenozoic tectonic evolution of the southern Liaozhong Sag have passed through four tectonic evolutionary stages, including the extensional stage (Ek-Es4), tectonic transitional stage (Es3-Es1), strike-slip shearing + extensional stage (Ed), and strike-slip shearing + depression stage (N+Q), based on the tectonic evolution caused by temporal and spatial variation of the strike-slip shearing and extension stress. The present structural pattern of southern Liaozhong Sag is complicated under the control of the temporal and spatial variation of both the strike-slip shearing and extension instead of one stress.
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Key words:
- structural characteristics /
- fault system /
- Cenozoic /
- southern Liaozhong Sag /
- Liaodong Bay
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[1] 侯贵廷, 钱祥麟, 蔡东升.渤海湾盆地中、新生代构造演化研究[J].北京大学学报:自然科学版, 2001, 37(6): 845-851. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=bjdxxb200106016
[2] 侯贵廷, 钱祥麟, 宋新民.渤海湾盆地形成机制研究[J].北京大学学报:自然科学版, 1998, 34(4): 91-97. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199800188296
[3] 徐长贵, 周心怀, 邓津辉, 等.辽西凹陷锦州25-1大型轻质油田发现的地质意义[J].中国海上油气, 2010, 22(1): 7-11, 16. doi: 10.3969/j.issn.1673-1506.2010.01.002
[4] 何京, 柳屿博, 吴奎, 等.渤海海域辽中凹陷南洼断裂体系及走滑控圈模式[J].断块油气田, 2017, 24(2): 147-153. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dkyqt201702003
[5] 龚再升, 蔡东升, 张功成.郯庐断裂对渤海海域东部油气成藏的控制作用[J].石油学报, 2007, 28(4): 1-10. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=syxb200704001
[6] 王祥, 王应斌, 吕修祥, 等.渤海海域辽东湾坳陷油气成藏条件与分布规律[J].石油与天然气地质, 2011, 32(3): 342-351. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=syytrqdz201103005
[7] 李伟, 陈兴鹏, 吴智平, 等.渤海海域辽中南洼压扭构造带成因演化及其控藏作用[J].高校地质学报, 2016, 22(3): 502-511. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gxdzxb201603011
[8] 吴奎, 徐长贵, 张如才, 等.辽中凹陷南洼走滑伴生构造带发育特征及控藏作用[J].中国海上油气, 2016, 28(3): 50-56. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zghsyq-gc201603007
[9] 柳永军, 徐长贵, 杜晓峰, 等.渤海海域走滑反转构造带油气运聚与调整——以旅大22-27地区为例[J].断块油气田, 2013, 20(6): 694-697. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dkyqt201306004
[10] 柳永军, 徐长贵, 吴奎, 等.辽中南洼走滑反转带的形成及其对油藏的控制作用[J].大庆石油地质与开发, 2016, 35(3): 16-21. doi: 10.3969/J.ISSN.1000-3754.2016.03.003
[11] Hou G T, Hari K R. Mesozoic-cenozoic Extension of the Bohai Sea: Contribution to the Destruction of North China Craton[J]. Frontiers of Earth Science, 2014, 8(2):202-215. http://d.wanfangdata.com.cn/Periodical_zggdxxxswz-dqkx201402003.aspx
[12] 侯贵廷, 钱祥麟, 蔡东升.渤海中、新生代盆地构造活动与沉积作用的时空关系[J].石油与天然气地质, 2000, 21(3): 201-206. doi: 10.3321/j.issn:0253-9985.2000.03.004
[13] 李伟, 吴智平, 张明华, 等.埕岛地区中生代和新生代断层发育特征及其对沉积的控制作用[J].中国石油大学学报:自然科学版, 2006, 30(1): 1-6, 11. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=sydxxb200601001
[14] 郑德顺, 吴智平, 李伟, 等.济阳坳陷中、新生代盆地转型期断裂特征及其对盆地的控制作用[J].地质学报, 2005, 79(3): 386-394. doi: 10.3321/j.issn:0001-5717.2005.03.010
[15] 武云云, 马立驰, 杨贵丽, 等.渤海湾盆地垦东地区新近系断裂特征及其控藏作用[J].石油实验地质, 2017, 39(1): 65-70. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=sysydz201701010
[16] Kopp H, Kopp C, Phipps morgan J, et al. Fossil Hot Spot-ridge Interaction in the Musicians Seamount Province: Geophysical Investigations of Hot Spot Volcanism at Volcanic Elongated Ridges[J]. Journal of Geophysical Research Solid Earth, 2003, 108(3):291-291. http://dx.doi.org/10.1029/2002jb002015
[17] Kopp H, Flueh E R, Klaeschen D, et al. Crustal Structure of the Central Sunda Margin at the Onset of Oblique Subduction[J]. Geophysical Journal International, 2001, 147(2):449-474. doi: 10.1046/j.0956-540x.2001.01547.x
[18] Steinberger B, Sutherland R, O'Connell R J. Prediction of Emperor-hawaii Seamount Locations From a Revised Model of Global Plate Motion and Mantle Flow[J]. Nature, 2004, 430(6996):167. doi: 10.1038/nature02660
[19] 徐长贵.渤海古近系坡折带成因类型及其对沉积体系的控制作用[J].中国海上油气, 2006, 18(6): 365-371. doi: 10.3969/j.issn.1673-1506.2006.06.002
[20] 左银辉, 邱楠生, 李建平, 等.渤海盆地辽东湾地区古近系烃源岩成熟演化模拟[J].现代地质, 2009, 23(4): 746-754. doi: 10.3969/j.issn.1000-8527.2009.04.021
[21] 侯贵廷.渤海湾盆地地球动力学[M].北京:科学出版社, 2014: 92-99.
[22] 陈书平, 吕丁友, 王应斌, 等.渤海盆地新近纪—第四纪走滑作用及油气勘探意义[J].石油学报, 2010, 31(6): 894-899. doi: 10.3969/j.issn.1001-8719.2010.06.011
[23] 官大勇, 王永利, 王玉秀, 等.渤海海域庙西北洼反转构造特征及其对油气成藏控制作用[J].海洋石油, 2012, 32(1): 18-22. doi: 10.3969/j.issn.1008-2336.2012.01.018
[24] 龚再升, 王国纯, 贺清.上第三系是渤中坳陷及其周围油气勘探的主要领域[J].中国海上油气地质, 2000, 14(3): 2-13. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zghsyq-dz200003001
[25] 龚再升, 王国纯.渤海新构造运动控制晚期油气成藏[J].石油学报, 2001, 22(2): 1-7, 119. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=syxb200102001
[26] 詹润, 朱光, 杨贵丽, 等.渤海海域新近纪断层成因与动力学状态[J].地学前缘, 2013, 20(4): 151-165. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dxqy201304012
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