郯庐断裂南段走滑和伸展断裂的深部结构及位置关系
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摘要
郯庐断裂带是亚洲东部著名的断裂活动带,经过多年的研究,取得了一系列重要成果,但涉及断裂带内部精细结构、走滑与伸展断裂体系的研究成果较少.本文以其中的嘉山庐江段为对象,依据高精度大地电磁(EMAP)和人工地震剖面及航磁异常资料,剖析了断裂带内部精细结构,明确了伸展和走滑断裂体系组成和平面位置,认为该段由多条主干断裂组成,具有断裂属性横向分区的特征:以池河太湖断裂为界,东侧主要发育池河—太湖(隐伏)、嘉山—庐江和古河—散兵等断裂,组成正花状构造样式,主要呈现压剪性走滑活动特征;西侧主要发育五河—合肥、石门山和池河—太湖(浅部)等断裂,呈现半地堑结构,其中2条断裂往南伸入合肥盆地而消失,只有池河—太湖断裂继续南延为合肥盆地的东部边界,主要呈现伸展活动特征.本文提出的断裂带横向分区等认识,既融合了前人有关"裂谷论"和"平移论"的重要成果,又弥合了二者的认识分歧,为今后精细研究郯庐断裂带提供了一条新思路.
Tanlu fault zone is the biggest one in east China.A series of significant study results have been obtained in the past forty years, but there still are understanding differences on some important issues such as its deep structure.Taking Jiashan-Lujiang segment as research object, this paper researches the interior fine structure and sediment response by analysis combining high precision EMAP method, artificial seismic sections with gravity and magnetism information.It also elaborates the system configulation and the locations of extension and strike-slip faults, and it is figured out that this segment is composed of many faults with laterally different characteristics.The east of Chihe-Taihu fault is strike-slip area, there are three main faults (Chihe-Taihu deep fault, Jiashan-Lujiang fault, and Guhe-Sanbing deep fault) which form normal flower structure;the west of it is extending area, It is composed of three faults near Dingyuan county and two of them (Wuhe-Hefei fault and Shimenshan fault) extend southward into Hefei basin and disappear there.Chihe-Taihu fault extends southward continually and becomes the eastern boundary of Hefei basin.The paper combines with the previous research results on rifting and translation and provides a case for the deep structure research of large scale fault belts.
引文
[1] Gilder S A,Leloup P H,Courtillot V,et al.Tectonic evolution of the Tancheng-Lujiang(Tan-Lu)fault via Middle Triassic to Early Cenozoic paleomagnetic data.Journal of Geophysical Research,1999,104:15365~15390
    [2] Grimmer J C,Jonckheere R,Enkelmann E,et al.Cretaceous-Cenozoic history of the southern TanLu fault zone:apatite fission-track and structural constraints from the Dabie Shan(eastern China).Tectonophysics,2002,359:225~253
    [3] 侯明金,王永敏,Jac ques Mercier,Pierre Vergely.郯庐断裂带(安徽部分)动力学演化及其构造意义.地质通报,2003,22(2) :105~112 Hou M J,Wang Y M,Jacques Mercier,Pierre Vergely.Dynamic evolution and tectonic significcance of the Tanlu fault zone(Anhui segment).Geological Bulletin of China(in Chinese),2003,22(2) :105~112
    [4] 万天丰.中国大地构造学纲要.北京:地质出版社,2004.118~250 Wan T F.An Outline in Tectonics of China(in Chinese).Beijing:Geological Publishing House,2004.118~250
    [5] Lin W,Faure M,Wang Q,et al.Triassic polyphase deformation in the Feidong-Zhangbaling massif(Eastern China)and its place in the collision between the north China and South China blocks.Journal of Asian Earth Sciences,2005,25:121~136
    [6] 吴根耀,梁兴,陈焕疆.试论郯城-庐江断裂带的形成、演化及其性质.地质科学,2007,42(1) :160~175 Wu G Y,Li X,Chen H J.An approach to the Tancheng-Lujiang fault zone:its creation,evolution and character.Chinese Journal of Geology(in Chinese),2007,42(1) :160~175
    [7] 张鹏,王良书,钟锴等.郯庐断裂带的分段性研究.地质论评,2007,53(5) :586~593 Zhang P,Wang L S,Zhong K,et al.Research on the segmentation of Tancheng-Lujiang fault zone.Geological Review,1996,2(1) :14~27
    [8] Hao T Y,Xu Y,Suh M,et al.East marginal fault of the Yellow Sea:a part of the conjunction zone between Sino-Korea and Yangtze Block.Geological Society,Special Publication,2007,280:281~291
    [9] 陈丕基.郯庐断裂巨大平移的时代与格局.科学通报,1988, 33(4) :289~293 Chen P J.Timing and framework of huge displacement of the Tan-Lu fault.Chinese Science Bulletin(in Chinese),1988,33(4) :289~293
    [10] 徐嘉炜,马国锋.郯庐断裂带研究的十年回顾.地质论评, 1992,38(4) :316~324 XuJ W,Ma G F.Review of ten year(1981~1991) of research on the Tancheng-Lujiang fault zone.Geological Review(in Chinese),1992,38(4) :316~324
    [11] 许志琴.郯庐裂谷系概述.见:构造地质论丛(3) .北京:地质出版社,1984.39~46 Xu Z Q.General of the Tancheng Lujiang rift system.Structural Geology Review(in Chinese),1984,3:39~46
    [12] 汤加富,李怀坤,娄清.郯庐断裂南段研究进展与断裂性质讨论.地质通报,2003,22(6) :426~436 Tang J F,Li H K,Lou Q.Progress in the study of the southern segment of the Tanlu Fault and a discussion of the nature of the fault.Geological Bulletin of China(in Chinese),2003,22(6) :426~436
    [13] 张交东,刘德良,林会喜等.郯庐断裂南段巨型正花状构造的发现与意义.中国科技大学学报,2003,33(4) :401~404 Zhang J D,Liu D L,Lin H X,et al.Discovery of the giant positive-flower-structure in the southern part of tanlu fault and it's geological significance.Journal of University of Science and Technology of China(in Chinese),2003,33(4) :401~404
    [14] 白志明,王椿镛.下扬子地壳P波速度结构:符离集-奉贤地震测深剖面再解释.科学通报,2006,51(21) :2534~2541 Bai Z M,Wang C Y.Crustal P-wave velocity structure in Lower Yangtze region:Reinterpretation of Fuliji-Fengxian deep seismic sounding profile.Chinese Science Bulletin(in Chinese),2006,51(21) :2534~2541
    [15] 滕吉文,闫雅芬,王光杰等.大别造山带与郯庐断裂带壳、幔结构和陆内“俯冲”的耦合效应.地球物理学报,2006,49(2) : 449~457 Teng J W,Yan Y F,Wang G J,et al.Structure of Earth's crust and upper mantle,inland subduction and its coupling effects on the Dabie orogenic belt and the Tancheng-Lujiang fault zone.Chinese Journal of Geophysics(in Chinese),2006,49(2) :449~457
    [16] 李云平,吴时国,韩文功等.合肥盆地和郯庐断裂带南段深部地球物理特征研究.地球物理学报,2006,49(1) :115~122 Li Y P,Wu S G,Han W G,et al.A study on geophysical features of deep structures of the Hefei Basin and the southern Tan Lu fault zone.Chinese J.Geophys.(in Chinese),2006,49(1) :115~122
    [17] 国家地震局地质研究所.郯庐断裂.北京:地震出版社,1987 Institude of Geology,State Seismological Bureau.Tanlu Fault Zone(in Chinese).Beijing : Seismological Press,1987
    [18] 魏光兴,刁守中,周翠英.郯庐带地震活动性研究.北京:地震出版社,1993 Wei G X,Diao S Z,Zhou C Y.The Research of Earthquake Activity of Tan-Lu Faults(in Chinese).Beijing: Seismological Press,1993
    [19] 安徽省地质矿产局.安徽省区域地质志.北京:地质出版社,1987.501~507 Bureau of Geology and Mineral Resources of Anhui Province.Regional Geology of Anhui Province(in Chinese).Beijing:Geological Publish House,1987.501~507
    [20] 安徽省地质局.安徽省区域地质调查报告(合肥幅,定远幅).北京:地质出版社,1978.450~460 Bureau of Geology and Mineral Resources of Anhui Province.Regional Geological Survey Report of Anhui Province(Hefei area,Dingyuan area)(in Chinese).Beijing:Geological Publish House,1978.450~460
    [21] 王小凤,李中坚,陈柏林等.郯庐断裂带.北京:地质出版社, 2000.15~119,218~348 Wang X F,Li Z J,Chen B L,et al.On Tan-Lu Fault Zone(in Chinese).Beijing:Geological Publish House,2000.15~119,218~348
    [22] 张交东,郝天珧,樊德华等.合肥盆地中生界的地层时代判识及意义.地质学报,2009,83(5) :599~608 Zhang J D,Hao T Y,Fan D H,et al.Identification of geological time of Mesozoic strata in Hefei Basin and its significance.Acta Geologica Sinica(in Chinese),2009,83(5) :599~608
    [23] 韩树棻.安徽北部中、新生代沉积盆地分析.北京:地质出版社,1996 Han S F.Analysis of Mesozoic and Cenozoic Sedimentary Basins in North Anhui(in Chinese).Beijing:Geological Publish House,1996
    [24] 刘德良,陶士振.郯庐断裂带及邻区构造组合研究.大地构造与成矿学,2000,24(4) :314~320 Liu D L,Tao S Z.A study on structure assembles in Tan-Lu fracture zone and near areas.Geotectonica et Metallogenia(in Chinese),2000,24(4) : 314~320
    [25] 胡博,张岳桥.安徽张八岭隆起东缘基底走滑韧性剪切带的发现及其构造意义.地质通报,2007,26(3) :256~265 Hu B,Zhang Y Q.Discovery of a basement strike-slip ductile shear zone on the eastern margin of the Zhangbaling uplift,Anhui,China,and its tectonic significance.Geological Bulletin of China(in Chinese),2007,26(3) :256~265
    [26] Harding T P.Seismic characteristics and identification of negative flower structures,positive flower structure and positive structural inversion.AAPG,1985,63 : 1016~1058
    [27] Bartlett W L,Friedman M,Logan J M.Experimental folding and faulting of rocks under deconfining pressure X.wrench faults in limestone layer.Tectonophsics,1981,79:255~277
    [28] 徐树桐,刘贻灿,江来利等.大别山的构造格局和演化.北京: 科学出版社,1987.132 Xu S T,Liu Y C,Jiang L L,et al.Tectonic regime and evolution for Dabie Mountains.Beijing: Sciense Press(in Chinese),1987.132
    [29] 张永军,黄钟瑾.张八岭推覆体特征及其成因机制.高校地质学报,1998,4(4) :444~451 Zhang Y J,Huang Z J.Geometry and mechanics of Zhangbaling nappe in east of Tan-Lu fault zone,eastern China.Geological Journal of China Universities(in Chinese),1998,4(4) :444~451
    [30] 刘文灿,李博文,潘宝友等.安徽巢湖-滁州地区中生代构造变形特征.现代地质,2001,15(1) :13~20 Liu W C,Li B W,Pan B Y,et al.Characteristics of deformation during Mesozonic era in the Chaohu-Chuzhou region,Anhui province.Geoscience(in Chinese),2001,15(1) :13~20
    [31] 许卫,童劲松,朱光,宋传中.安徽肥东地区造山带的韧性剪切带特征.中国区域地质,2001,20(3) :294~299 Xu W,Tong J S,Zhu G,Song C Z.Characteristics of an orogen-related ductile shear zone in the Feidong area,Anhui.Geological Bulletin of China(in Chinese),2001,20(3) :294~299
    [32] 邱楠生,苏向光,李兆影等.郯庐断裂中段两侧坳陷的新生代构造热演化特征.地球物理学报,2007,50(5) :1497~1507 Qiu N S,Su X G,Li Z Y,et al.The Cenozoic tectono-thermal evolution of depressions along both sides of middle segment of Tancheng-Lujiang Fault Zone,East China.Chinese J.Geophys.(in Chinese),2007,50(5) :1497~1507
    [33] 叶高峰,魏文博,金胜等.郯庐断裂带中段电性结构及其地学意义研究.地球物理学报,2009,52(11) :2818~2825 Ye G F,Wei W B,Jin S,et al.Study of the electrial structure and its geological meanings of the middle part of Tancheng-Lujiang fault zone.Chinese J.Geophys.(in Chinese),2009,52(11) :2818~2825
    [34] 陈建平.合肥盆地中新生代构造演化与油气地质特征.北京: 地质出版社,2005 Chen J P.Tectonic evolution of Meso-Cenozoic and petrolem geology in Hefei Basin(in Chinese).Beijing:Geological Publish House,2005
    [35] 李丕龙,李学田,宋明水等.合肥盆地石油地质与地球物理特征研究及进展.北京:地质出版社,2003 Li P L,Li X T,Song M S,et al.Petrolem Geology and Geophysical Prospecting and Advance in Hefei Basin(in Chinese).Beijing:Geological Publish House,2003
    [36] Li X H.Cretaceous magmatism and lithospheric extension in southeast China.Journal of Asian Earth Sciences,2000,18 :293~305
    [37] Li Z,Li Y,Zheng J P,Han D.Late Mesozoic tectonic transition of the eastern North China Craton: evidence from basin-fill records.Geological Society,2007,80:239~265

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