Abstract：This paper gives the conclusion that the copper deposit and the ore-forming rocks in Chuankeng-Tongshan area in Jiangxi Province were controlled by Mesozoic thrust-fault, by tectonic deformation analysis in the field. The thrust-fault’s surface undulate and overall dip towards SE. The exotic block composed of carbonate, shale and pelitic siltstone from middle Carboniferous to upper Triassic and the autochthon crop out Lower Jurassic. Deformations of exotic block shows isoclinal fold, associated with different scale of thrust fault and bedding detachment structure. Some recumbent and box folds are local existence. The thrust-fault moves from SE to NW. The ore-forming rocks intrusive to the thrust bedding detachment as mutual paralleled sheet. Other research in rock geochemistry and isotopic geochronology showed that the magma formed in magmatic arc under extensional environment, around 170 Ma. According to the stratigraphic age, the relationship of Mesozoic thrust-fault and the granite in Dexing area, the result inferred that the magma was syntectonic intrusion rocks, and controlled by the thrust-fault. And this probably results from the subduction of Pacific plate and southeast continental of China, and leads to the incrassation lithosphere and large scale nappe, then induces the lower earth crust remelting and magma invade.
卢俊浩, 张达, 狄永军, 毕珉烽, 熊光强, 秦晓峰. 赣东北船坑—铜山推覆构造及其与同构造成矿岩浆的关系[J]. 中国地质调查, 2016, 3(3): 29-37.
LU Junhao, ZHANG Da, DI Yongjun, BI Minfeng, XIONG Guangqiang, QIN Xiaofeng. The relationship between thrust-fault and the syntectonic magmatism in Chuankeng-Tongshan, northeastern Jiangxi Province. , 2016, 3(3): 29-37.
[1] 杨明桂,梅勇文.钦—杭古板块结合带与成矿带的主要特征[J].华南地质与矿产,1997(3):52-59. [2] 张达,吴淦国,狄永军,等.闽西南中生代推覆构造对铁矿床控矿特征研究[J].矿物学报,2011(增刊):128-129. [3] 张岳桥,徐先兵,贾东,等.华南早中生代从印支期碰撞构造体系向燕山期俯冲构造体系转换的形变记录[J].地学前缘,2009,16(1):234-247. [4] 王强,赵振华,简平,等.德兴花岗闪长斑岩SHRIMP锆石U-Pb年代学和Nd-Sr同位素地球化学[J].岩石学报,2004,20(2):315-324. [5] Lu J J,Hua R M,Yao C L.Re-Os age for molybdenite from the Dexing porphyry Cu-Au deposit in Jiangxi Province,China[J].Geochimica et Cosmochimica Acta,2005,69(10):882. [6] 水新芳,赵元艺,郭硕,等.德兴矿集区花岗闪长斑岩锆石U-Pb年龄、Hf同位素特征及其意义[J].中国地质,2012,39(6):1543-1561. [7] Wang G G,Ni P,Zhao K D,et al.Petrogenesis of the Middle Jurassic Yinshan volcanic-intrusive complex,SE China:implications for tectonic evolution and Cu-Au mineralization[J].Lithos,2012,155:135-154. [8] 李晓峰,陈文,毛景文,等.江西银山多金属矿床蚀变绢云母40Ar-39Ar 年龄及其地质意义[J].矿床地质,2006,25(1):17-26. [9] 左力艳,侯增谦,孟祥金,等.冷水坑斑岩型银铅锌矿床含矿岩体锆石SHRIMP U-Pb年代学研究[J].中国地质,2010,37(5):1450-1456. [10] 孟祥金,侯增谦,董光裕,等.江西冷水坑斑岩型铅锌银矿床地质特征、热液蚀变与成矿时限[J].地质学报,2009,83(12):1951-1967. [11] 丁昕,蒋少涌,倪培,等.江西武山和永平铜矿含矿花岗质岩体锆石SIMS U-Pb年代学[J].高校地质学报,2005,11(3):383-389. [12] 秦晓峰.北武夷地区燕山期与成矿有关的火山-侵入岩浆序列初步框架[D].北京:中国地质大学(北京),2014. [13] 黄其胜,卢宗盛,黄剑勇,等.赣东北早中侏罗世层序地层、沉积体系及陆盆演化[J].地层学杂志,1998,22(4):369-277. [14] Liu C Z,Liu Z C,Wu F Y,et al.Mesozoic accretion of juvenile sub-continental lithospheric mantle beneath South China and its implications:geochemical and Re-Os isotopic results from Ningyuan mantle xenoliths[J].Chemical Geology,2012,291:186-198. [15] 邱骏挺,余心起,张德会,等.浙西开化地区桐村花岗斑岩LA-ICP-MS锆石U-Pb年龄及其地质意义[J].地质通报,2011,30(9):1360-1368. [16] 顾明光,冯立新,胡艳华,等.浙江绍兴地区广山-栅溪岩体LA-ICP-MS锆石U-Pb定年:对漓渚铁矿成矿时代的限定[J].地质通报,2011,30(8):1212-1219. [17] 毛建仁,叶海敏,厉子龙,等.钦杭结合带(东段)晚中生代挤压-伸展构造的岩浆活动与成矿记录[J].矿物学报,2013(增刊):30-31. [18] 董树文,张岳桥,陈宣华,等.晚侏罗世东亚多向汇聚构造体系的形成与变形特征[J].地球学报,2008,29(3):306-317. [19] 万天丰,朱鸿.中国大陆及邻区中生代—新生代大地构造与环境变迁[J].现代地质,2002,16(2):107-120. [20] 罗锦昌,陈郑辉,屈文俊.福建省永定山口钼矿辉钼矿铼-锇同位素定年及其地质特征[J].岩矿测试,2009,28(3):254-258. [21] 毛景文,谢桂青,李晓峰,等.华南地区中生代大规模成矿作用与岩石圈多阶段伸展[J].地学前缘,2004,11(1):45-55. [22] 毛景文,谢桂青,郭春丽,等.南岭地区大规模钨锡多金属成矿作用:成矿时限及地球动力学背景[J].岩石学报,2007,23(10):2329-2338. [23] 毛景文,谢桂青,郭春丽,等.华南地区中生代主要金属矿床时空分布规律和成矿环境[J].高校地质学报,2008,14(4):510-526.
2016, Vol. 3 
