鄂尔多斯南缘构造特征研究
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摘要
鄂尔多斯南缘西接六盘山构造带,南邻北祁连—北秦岭构造带,横跨渭北隆起、渭河地堑、华北板块西缘南端等不同级别构造单元,在大地构造位置上比较特殊。各构造单元的构造特征主要受到加里东、燕山和喜马拉雅等多期构造运动的影响。特殊的构造位置、特殊的构造动力学环境及其叠加造就了不同时代、不同类型的岩石地层单元及其复杂的地质接触关系,从而也使该区现今地质构造特征极为复杂。
     本论文以现代构造地质学理论为指导,在对研究区各种地质及地球物理资料进行综合解释和研究的基础上,对研究区的基底和盖层分别进行了详细研究;划分了研究区的构造层和构造单元,并剖析了各构造单元的基本特征;对控制各构造单元构造特征的区域断裂系统进行了专门的研究和讨论。论文得出如下成果和认识:
     1、研究区以太古界及古元古界变质岩系为结晶基底,总体走向为北东向的磁异常和磁异常等值线均反映出呈北东向隆坳相间的基本构造格局,布格重力异常图也较好地反映了该构造格局。
     2、根据研究区盖层内部不同时代地层之间的接触关系,将研究区沉积盖层划分为主要七个构造层:晋宁构造层、泛非构造层、加里东构造层、海西构造层、印支构造层、燕山构造层、喜马拉雅构造层。
     3、在研究区主干断裂研究成果的基础上,结合区域地质、地球物理特征将研究区划分为四个构造单元:渭河盆地、渭北隆起、陇县—千阳构造带、小秦岭构造带。并对研究区内的前三个构造单元构造特征进行了详细的研究,渭河盆地主体构造特征表现为以“y”字型正断层控制的南深北浅的箕状断陷。根据渭北隆起断裂构造及其伴生的褶皱构造的变形差异,可以将其划分为麟游—永寿逆冲褶皱构造带和彬县-铜川构造带两个次级构造单元。麟游—永寿逆冲褶皱构造带中褶皱发育,断层多以近东西走向的逆断层发育为特征;彬县-铜川构造带东部地面、地下断层发育,断层走向复杂,北东、北西、东西走向的断层均有发育,该构造带西部断层规模较小,且以近东西走向的逆断层发育为特征。陇县—千阳构造带则主要以北西走向的逆断层及其所夹断块为特征。
     4、研究区一级断裂主要是秦岭北缘大断裂和八渡-虢镇逆冲断层,分别是华北地台与秦岭造山带和六盘山造山带的边界断层。二级断裂是草碧—老龙山—圣人桥断裂、华山北侧大断裂、渭河盆地北缘断裂、渭北隆起北缘断裂,这些断裂对区内各构造单元发育和沉积起着控制作用。研究区的三级断裂断裂发育,它们作为局部隆起和凹陷的边界断裂和内部断裂,对局部构造的发育起着重要的控制作用。
The southern margin of Ordos Liupanshan west tectonic belt, south of Northern Qilian - North Qinling tectonic belt across Weibei uplift, Weihe Graben, the southern tip of the western margin of North China Plate and other tectonic units of different levels, tectonic position in the special. The tectonic units are the structural characteristics of the main Caledonian, Yanshan and Himalayan tectonic movements such as the impact of a view The structure of the special position of the structure of the particular environment and its dynamics to create a superposition of different times, different types of lithostratigraphic units and complexity of the relationship between geological contacts, and hence the characteristics of the area present a very complex geological structure.
     In this paper, the theory of modern structural geology as a guide, the study area in a variety of geological and geophysical data interpretation and research, based on the study area of the basement and cover were studied in detail; divided the study area structural layer and the structural units, and analyzes the basic characteristics of tectonic units; the control of structural characteristics of the tectonic units of the regional fault system specialized study and discussion. Papers and understanding the results obtained are as follows:
     1. the study area and in Archean Paleoproterozoic to Mesoproterozoic crystalline basement metamorphic rocks, the overall trend for the north-east of the magnetic anomalies and magnetic anomalies were reflected isogram NE Long Pass the basic structure and white pattern, cloth Lattice gravity anomaly map is also better reflects the structural pattern.
     2. according to the study area cover different times of internal contacts between stratigraphic relations, sedimentary covers the study area will be divided into six main structural layer: Jinning structural layer, the Pan-African structural layer, structural layer Caledonian, Hercynian structural layer , Indo-China structural layer, structural layer Yanshanian.
     3. according to the study area boundary tectonic units and the role of fracture characteristics, combined with geophysical field characteristics of the study area and geological characteristics of the study is divided into the Weihe River basin, Weibei uplift, Longxian - Qianyang tectonic belt, tectonic Xiaoqinling with four structural units. The study area and tectonic units of the first three structural characteristics of the study in detail, the Weihe River basin is characterized by the main structure in order to "y"-shaped normal fault-controlled deep South like the North Shaoji shallow faulted. Weibei uplift in accordance with faults and associated deformation of the fold difference could be divided into Linyou- Yongshou fold thrust belt and Binxian -Tongchuan structure with two sub-tectonic units.Linyou- Yongshou fold thrust belt development in the folding, faulting and more nearly east-west thrust fault is characterized by the development; Binxian - Tongchuan tectonic zone east of the ground, the ground floor of fault development, the complexity of faults, the North East, North West, east-west faults have developed, with the western fault of the structure a smaller scale, and nearly east-west thrust fault is characterized by the development. Longxian - Qianyang tectonic belt are mainly north of the West towards the thrust fault and the fault block is characterized by folder.
     4. the study area is mainly a fault of Qinling fault and the northern margin of Badu - Guo Zhen thrust fault, namely the North China platform and Qinling orogenic belt and the border Liupanshan fault. Bi-2 fracture is a grass - old Yongsan - saints bridge was broken and on the north side of Hua Shan fault, the northern margin of the Weihe fault basin, the northern margin uplift Weibei fracture, the fracture of various structural units of the region and sedimentation from development the role of the control. The study area at the three levels of fracture fracture development, as local uplift and depression of the boundary fault and internal fault, the development of the local structure plays an important role in the control.
引文
[1]Allen P.A,Allen J.R.Basin analysis:Principles and application[M].Blackwell Scientific Press,1990:90-103
    [2]程刚.鄂尔多斯西南缘早古生代裂谷陆缘结构及其演化[D].西安:西北大学,1994
    [3]陈志新.渭河盆地地裂缝发育基本特征[J],工程地质学报,2007,441-446
    [4]陈家弦.渭河盆地的形成与发展[M].地质出版社,1981:51-59
    [5]邓昆.鄂尔多斯盆地中央古隆起形成演化与天然气聚集关系研究[D].西安:西北大学,2008
    [6]戴王强,韩恒悦,冯希杰.临潼-长安断裂带晚第四纪以来的活动性[J].2007,29(2):331-335.
    [7]范俊喜.鄂尔多斯地块运动特征的研究[D].北京:中国地震局,2002.
    [8]冯希杰,田勤俭,申旭辉.渭河断裂西段活动差异性分析[J].地质评论,2003,49(5):234-237
    [9]冯希杰,戴王强,师亚芹等.临潼-长安断裂错距及其分布特征.地震地质,2006,28(4):579-588
    [10]国家地震局.鄂尔多斯周缘活动断裂体系[M].地震出版社,1988:120-165
    [11]何登发,贾承造,童晓光等.叠合盆地概念辨析[J].石油勘探与开发,2004,31(1):1-7
    [11]Gibbs,Linked fault families in basin formation[J].J.S.G,1990,9(5):25-38
    [12]韩恒悦.渭河断陷带的形成及断块运动[J].地震研究,2002,25(4):363-367
    [13]韩恒悦,贺明静,李永善.渭河盆地东部地区活断层[J].地震地质,1987,9(2):85-90
    [14]Jackson J.A.et at.The geollopic evolution of normal faultsystems[J].J.S.G,1984,23(5):103-108
    [15]金性春.板块构造学基础[M].上海科学技术出版社,1984:4-169
    [16]黄汲青.中国大地构造基本轮廓[M].地质出版社,1977:188-204
    [17]李旭.陕甘宁盆地西南缘构造体系与含油气远景[J].西安地质学院学报,1979,36(25):67-87
    [18]李侠.渭被翘起带构造控水的研究[R].西安:西安地质学院地质构造研究所,1991
    [19]李四光.旋转构造及其他有关中国西北部大地构造体系复合问题[J].地质学报,1954,34(4):339-410
    [20]李春昱.对渭河盆地的质疑[J].地质学通报,1956,36(4):36-42
    [21]李旭.陕甘宁盆地西南缘构造体系与含油气远景[J].西安地质学院学报,1979,(1):67-87
    [22]李向平.鄂尔多斯盆地西南缘中生代构造事件及沉积物源环境分析[D].西安:西北大学,2006
    [23]李永善.西安地裂及渭河盆地活断层研究[M].地震出版社,1992.152-168.
    [24]刘护军.渭河盆地的形成演化与东秦岭的隆升[D].西安:西北大学,2004
    [26]刘光勋.汾渭地堑边缘挤压构造带及其地质意义[M].北京:地质出版社,1985:61-67
    [26]李江涛.鄂尔多斯盆地南缘构造特征及下古生界天然气勘探前景[J].石油勘探与开发,1996,23(2):11-15
    [27]Lindseth R O.Synthetic sonic logs-a process for stratigraphic interpretation.Geophysics,1979,44(1):34-16.
    [28]M.Mike Leeder.Sedimentology and Sedimentary Basins from Turbulence to Tectonics[J].Blackwell Science,1999,12(6):591-596.
    [29]马杏坦,白瑾,索书田等。中国前寒武纪构造格架及研究方法[M].北京:地质出版社,1987:64-65
    [30]毛明陆.渭北隆起北部构造分析与油气成藏分析[D].西安:西北大学,1995
    [31]马志和,李海平,计文化.华北地块南缘向北的薄皮推覆构造及北秦岭加里东造山作用[J].陕西地质,1996,14(1):36-42
    [32]Pickett G R.Acoustic charcter logs and their applications in formation evaluation.J.of Petr.Tech.[M].Geophysics,1982:659-677
    [33]彭建兵.渭河盆地活动断裂与地质灾害[M].西北大学出版社,1991:16-44
    [34]Ricker N.Wavelet contraction,wavelet contraction,wavelet expansion and control of seismic resolution.geophysics[M].1953;23(18):769-792
    [35]师亚芹,冯希杰,李晋等.临潼-长安断裂带古地震及地震危险性评[J].震灾防御技术,2007,2(2):137-146
    [36]孙肇才,中国中新生带盆地构造和演化[M],北京科学出版社,1983:P129-141
    [37]Sepencer J.E.Role of tectonic denudation in warping and uplifiting of low angle normal faults[J].Geology,1984,6(12):26-36
    [38]Schoenberger M.Resolution comparison of minimum phase and zero phase Signals[M].Geophysics,1974,25(22):826-833
    [39]谭永杰.鄂尔多斯盆地南缘构造变形及其演化[D].北京:中国矿业大学,1992
    [40]汤锡元.陕甘宁盆地前石炭系基底大地构造及其含油气远景[J],西北大学学报,1978:8(3):19-44
    [41]汤锡元.陕甘宁盆地西缘逆冲推覆构造与油气勘探[M].西北大学出版社,1990:36-58
    [42]田勤俭,申旭辉,冯希杰等.第四纪构造事件初步研究[J].地震地质,2003,25(1):147-152
    [43]Willams G..The geometry of listric normal faults and deformation in ther handdingwalls[J].J S.G.,1987,9(7):66-72.
    [44]王景明.渭河地堑断裂构造的研究[J],地质评论.1984,30(3):217-223
    [45]王存诚.论渭河地堑[J].地质学通报,1965,45(2):56-62
    [46]王鸿祯.中国地层的区划[J].地质学报,1978,20(2):63-74
    [47]王卫东,张永志,王平等.渭河断陷盆地及邻区的地震活动性和深部地球物理背景[J],内陆地震.2004,18(3):208-211
    [48]夏玉成,候思科.试论渭河裂谷成因机制及其意义[J].西安矿业学院学报,1996,(1):59-63
    [49]杨俊杰等.鄂而多斯盆地西缘掩冲带构造与油气关系[M].甘肃科学技术出版社,1990::23-65
    [50]袁耀庭.鄂尔多斯地台南缘及其邻区区域地质构造特征[J].煤田地质与勘探,1977,12(3):7-11
    [51]于鹏.鄂尔多斯盆地南部MT剖面综合地球物理解释[J].石油物探,1999,38(3):87-92
    [52]袁卫国,王平.鄂尔多斯盆地南部地区的加里东运动[J].西安地质学院学报,1996,18(1):37-41
    [53]朱志澄.构造地质学[M].中国地质大学出版社,1999.164-71
    [54]朱志澄.构造地质学的新进展和新的构造观,地质科技情报,1988,7(1):1-8
    [55]朱志澄.逆沖推覆构造.中国地质大学出版社[M],1989:3-37
    [56]张尔道.西安地裂缝研究[M].西北大学出版社,1990:37-68
    [58]张安良.雷姚琪.长安-临潼断裂的活动与西安地区地震危险性探讨[J].内陆地震,1991,5(3):216-225
    [59]张军.渭北地区地质构造特征及其与油气聚集关系[R],西安:长庆油田勘探开发研究院内部资料,1995
    [60]张国伟,张本仁.秦岭造山带与中国大陆动力学[M].科学出版社2001:97-119
    [60]张国伟,秦岭造山带形成及其演化[M].西北大学出版社,1988:1-26
    [61]周鼎武.鄂尔多斯地块西南缘地质构造特征与秦岭造山带的关系[M],西北大学出版社,199:59-166
    [62]周鼎武.渭北西部地区加里东构造带变形特征及其地质意义[J].西北大学学报1989.19(4):P93-100
    [63]赵重远.鄂尔多斯盆地的演化历史、形成机制和含油气有利地区,华北克拉通沉积盆地形成与演化及其油气赋存[M].西北大学出版社,1990:93-102
    [64]赵红格.鄂尔多斯盆地西部构造特征及演化[M].西安:西北大学,2003
    [65]左智峰.陕甘宁盆地渭北隆起旬探1井地质综合评价报告[R].西安:长庆油田勘探开发研究院内部资料,1994

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