The Structural Types and Petroleum Geological Significance of Early Cretaceous Complex Faulted Sag in Erlian Basin
Received date: 2014-10-08
Revised date: 2014-12-08
Online published: 2015-07-10
Erlian Basin could be divided into 5 depressions and 4 uplifts based on the distribution of Lower Cretaceous that filled in the faulted-sag in the styles of graben and/or half-graben controlled by NE-NNE striking normal faults.By the configuration of major faults,the complex faulted sag could be categorized into 4 families which are named respectively as serial,parallel,diagonal and interlaced.Each family includes 4 compounded patterns:(1)two or more half-grabens synthetic linked,(2)two or more half-grabens convergent linked,(3)graben and half-graben linked,(4)two or more grabens linked.The distribution of Early Cretaceous faulted-sag was controlled by Hercynian basement soft zone and the depressions extended in different direction.The hydrocarbon-bearing features of Lower Cretaceous have close relationship to both pattern of complex faulted-sags and the mode of rifting.The orthogonal rifting zone consisting of serial,diagonal faulted-sags in small angle with sag axle is beneficial to develop a narrow and deep faulted-lake,and hydrocarbon source rock is found within deep sub-sags.The oblique rifting zone consisting of parallel,diagonal faulted-sag in high angle with sag axle is beneficial to develop a wide faulted-lake,and source rock is found within the slope of faulted-lake.Most of the faulted-sags scattered over the uplift superimposed on the rigid basement,in that steep boundary fault with big displacement will be more favorable to the development of source rock growth in deep lake.
ZHAO Xian-zheng,JIN Feng-ming,QI Jia-fu,WANG Quan,YANG Ming-hui,SHI Yuan-peng,DONG Xiong-ying . The Structural Types and Petroleum Geological Significance of Early Cretaceous Complex Faulted Sag in Erlian Basin[J]. Natural Gas Geoscience, 2015 , 26(7) : 1289 -1298 . DOI: 10.11764/j.issn.1672-1926.2015.07.1289
[1]Ma Xingyuan,Liu Hefu,Wang Weixiang,et al.Meso-Cenozoic taphrogeny and extensional tectonics in eastern China[J].Acta Geologica Sinica,1983,57(1):22-321.[马杏垣,刘和甫,王维襄.中国东部中新生代裂陷作用及伸展构造[J].地质学报,1983,57(1):22-321.]
[2]Liu Hefu,Liang Huishe,Li Xiaoqing,et al.The coupling mechanisms of Mesozoic-Cenozoic rift basins and extensional mountain system in eastern China[J].Earth Science Frontiers,2000,7(4):477-486.[刘和甫,梁慧社,李晓青,等.中国东部中新生代裂陷盆地与伸展山岭耦合机制[J].地学前缘,2000,7(4):477-486.]
[3]Withjack M O,Jamison W R.Deformation produced by oblique rifting[J].Tectonophysics,1986,126(2-4):99-124.
[4]McClay K R,White M.Analogue models of orthogonal and oblique rifting[J].Marine and Petroleum Geology,1995,12(2):137-151.
[5]McClay K R,Dooley T,Whitehouse P,et al.4-D evolution of rift systems:Insights from scaled physical models[J].AAPG Bulletin,2002,86(6):935-959.
[6]Mortimer E,Paton D A,Scholz C A,et al.Orthogonal to oblique rifting:Effect of rift basin orientation in the evolution of the north basin,Malawi Rift,East Afica[J].Basin Research,2007,19(3):393-407.
[7]Jackson J A.Active normal faulting and crustal extension[C]// Coward M P,Dewey J F,Hancock P L.Continental Extensional Tectonics.London:Geological Society of London Special Publication,1987:3-17.
[8]Schlische R W.Half-graben basin filling models:New constraints on continental extensioan basin development[J].Basin Research,1991,3(3):123-141.
[9]Ren Jianye,Li Sitian,Jiao Guihao.Extensional tectonic systemof Erlian fault basin group and its deep background[J].Earth Science:Journal of China University of Geosciences,1998,23(6):567-572.[任建业,李思田,焦贵浩.二连断陷盆地群伸展构造系统及其发育的深部背景[J].地球科学:中国地质大学学报,1998,23(6):567-572.]
[10]Li Xiaoqing,Qiu Dongzhou,Liu Hefu,et al.Prospectivity for oil and gas in sedimentary basins superposed on are like folded belts in Mongolia[J].Earth Science Frontiers,2006,13(6):72-81.[李晓清,丘东洲,刘和甫,等.蒙古弧形褶皱带上叠沉积盆地油气远景[J].地学前缘,2006,13(6):72-81.]
[11]Liang Hongbin,Wu Chonglong,Li Linbo,et al.Unifying division of sequence stratigraphy unit and framework sequence stratigraphy of Erlian Basin[J].Earth Science:Journal of China University of Geosciences,2010,35(2):97-106.[梁宏斌,吴冲龙,李林波,等.二连盆地层序地层单元统一划分及格架层序地层学[J].地球科学:中国地质大学学报,2010,35(1):97-106.]
[12]Liang Guanzhong,Tan Jiancai,Wei Li,et al.Sedimentary characteristics of nearshore subaqueous fans of the Lower Cretaceous in Abei Sag of Erlian Basin,Inner Mongolia[J].Journal of Palaeogeography,2013,15(1):31-42.[梁官忠,谭建财,魏莉,等.内蒙古二连盆地阿北凹陷下白垩统近岸水下扇沉积特征[J].古地理学报,2013,15(1):31-42.]
[13]China National Petroleum Corporation.SY/ T 5978-1994 Division of Tectonic Units in Oil and Gas Basin[S].Beijing:Petroleum Industry Press,1995:1-3.[中国石油天然气总公司.SY/ T 5978-1994 含油气盆地构造单元划分[S].北京:石油工业出版社,1995:1-3.]
[14]Pan Guitang,Xiao Qinghui,Lu Songnian,et al.Subdivision of tectonic units in China[J].Geology in China,2009,36(1):1-28.[潘桂棠,肖庆辉,陆松年,等.中国大地构造单元划分[J].中国地质,2009,36(1):1-28.]
[15]Bureau of Geology and Mineral Resources of Inner Mongolia Autonomous Region.Regional Geology of the Inner Mongolia Autonomous Region[M].Beijing:Geological Publishing House,1991:1-275.[内蒙古自治区地质矿产局.内蒙古自治区区域地质志[M].北京:地质出版社,1991:1-275.]
[16]Meng Qi′an,Zhu Dengfeng,Chen Junliang,et al.Styles of complex faulted sags in rifting basins and its significance for petroleum geology:An example from Hailar-Tamsag Early Cretaceous Basin[J].Earth Science Frontiers,2012,19(5):76-85.[蒙启安,朱德丰,陈均亮,等.陆内裂陷盆地的复式断陷结构类型及其油气地质意义:以海塔盆地早白垩世盆地为例[J].地学前缘,2012,19(5):76-85.]
[17]Zhao Xianzheng,Jin Fengming,Wang Quan,et al.Theory of hydrocarbon accumulation in troughs within continental faulted basins and its application:A case study in Jizhong Depression and Erlian Basin[J].Acta Petrolei Sinica,2011,32(1):18-24.[赵贤正,金凤鸣,王权,等.陆相断陷盆地洼槽聚油理论及其应用——以渤海湾盆地冀中坳陷和二连盆地为例[J].石油学报,2011,32(1):18-24.]
[18]Ding Xiujian,Liu Guangdi,Lu Xuejun,et al.The impact on organic matter preservation by the degree of oxidation and reduction and sedimentation rates of Erlian Basin[J].Natural Gas Geoscience,2014,25(3):810-817.[丁修建,柳广弟,卢学军,等.二连盆地氧化—还原程度和沉积速率对有机质保存的影响[J].天然气地球科学,2014,25(6):810-817.]
[19]Yi Shiwei,Li Zhengwen,Jiao Guihao.The depression structure and accumulation model in Erlian Basin[J].Petroleum Exploration and Development,1998,25(2):8-14.[易士威,李正文,焦贵浩,等.二连盆地凹陷结构与成藏模式[J].石油勘探与开发,1998,25(2):8-14.]
[20]Zhang Wenchao,Zhu Yuheng,Jiang Donghua,et al.The law of oil controlled by subsags and prospect of petroleum exploration in Erlian Basin[J].Acta Petrolei Sinica,1997,18(4):25-31.[张文朝,祝玉衡,姜冬华,等.二连盆地“洼槽”控油规律与油气勘探前景[J].石油学报,1997,18(4):25-31.]
[21]Gawthorpe R L,Fraser A J,Collier R E L.Sequence stratigraphy in active extensional basins:Implications for the interpretation of ancient basin fills[J].Marine and Petroleum Geology,1994,11(6):642-658.
[22]Qi Jiafu,Yang Qiao.Structural styles of extensional basins and their main controlling factors of dynamics[J].Oil and Gas Geology,2007,28(5):634-640.[漆家福,杨桥.伸展盆地的结构形态及其主控动力学因素[J].石油与天然气地质,2007,28(5):634-640.]
[23]Cowie P A,Gupta S,Dawers N H.Implications of fault array evolution for synrift depocentre development:Insights from a numerical fault growth model[J].Basin Research,2000,12(3/4):241-261.
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