Relationship between Yanshanian magmatic activity and rare metal mineralization in Mufushan area of Northeast Hunan
WEN Chunhua1,2, LUO Xiaoya1, CHEN Jianfeng1, LIN Bihai1, LI Shengmiao1
1. Hunan Institute of Geological Survey, Changsha 410116, China; 2. School of Geosciences and Info-physics, Central South University, Changsha 410083, China
Abstract：The big rare metal deposits, such as Chuanziyuan (Li ore and Nb-Ta ore), Liren (Nb-Ta ore) and Huxingshan (W ore and Be ore), are distributed in Mufushan area of Northeast Hunan, and this area is an important pegmatite-type rare metal deposits ore-concentrated area. According to the chronological and petrogeochemical characteristics of granite and pegmatite in Mufushan area, the authors discussed the relationship between Yanshanian magmatic activity and rare metal mineralization. The results show that the magmatic activity lasted from Jurassic (154 Ma) to Cretaceous (92 Ma), and complex granite bodies and pegmatite veins have been formed, with lithologic zonation characteristics in pegmatite veins. The ore-forming age of pegmatite (130~127 Ma) is similar to the rock-forming age of mica monzonitic granite (137~129 Ma), and the mineralization of pegmatite is closely related to the high differentiation evolution of magma. The lithologic zonation characteristics in pegmatite veins are affected by the ore-forming fluid temperature, and the temperature in pegmatite decreased with the increase of distance from the rock body. Therefore, the circular distribution pattern has been formed form the rook body, with a sequence order of the pegmatite-type Bb ore belt lin the rock body→the pegmatite-type Nb-Ta ore belt (0~3 km)→the pegmatite-type Li-Nb-Ta ore belt (3~5 km)→the quartz vein type Be ore belt.
文春华, 罗小亚, 陈剑锋, 林碧海, 李胜苗. 湘东北幕阜山地区燕山期岩浆演化与稀有金属成矿的关系[J]. 中国地质调查, 2019, 6(6): 19-28.
WEN Chunhua, LUO Xiaoya, CHEN Jianfeng, LIN Bihai, LI Shengmiao. Relationship between Yanshanian magmatic activity and rare metal mineralization in Mufushan area of Northeast Hunan. , 2019, 6(6): 19-28.
[1] John B M,Zhou X H,Li J L.Formation and tectonic evolution of southeastern China and Taiwan:Isotopic and geochemical constraints[J].Tectonophysics,1990,183(1/4):145-160. [2] Chen J F,Foland K A,Xing F M,et al.Magmatism along the southeast margin of the Yangtze block:Precambrian collision of the Yangtze and Cathysia blocks of China[J].Geology,1991,19(8):815-818. [3] Chen J F,Jahn B M.Crustal evolution of southeastern China:Nd and Sr isotopic evidence[J].Tectonophysics,1998,284(1/2):101-133. [4] Li X H,Li Z X,Zhou H W,et al.U-Pb zircon geochronology,geo-chemistry and Nd isotopic study of Neoproterozoic bimodal volcanic rocks in the Kangdian Rift of South China:Implications for the initial rifting of Rodinia[J].Precamb Res,2002,113(1/2):135-154. [5] Zhang S B,Zheng Y F.Formation and evolution of Precambrian continental lithosphere in South China[J].Gond Res,2013,23(4):1241-1260. [6] Faure M,Shu L S,Wang B,et al.Intracontinental subduction: A possible mechanism for the Early Palaeozoic Orogen of SE Chi-na[J].Terra Nova,2009,21(5):360-368. [7] Charvet J,Shu L S,Faure M,et al.Structural development of the lower Paleozoic belt of south china: Genesis of an intracontinental orogen[J].J Asian Earth Sci,2010,39(4):309-330. [8] Li Z X,Li X H,Wartho J A,et al.Magmatic and metamorphic events during the early Paleozoic Wuyi-Yunkai orogeny,southeastern South China:New age constraints and pressure-temperature conditions[J].GSA Bull,2010,122(5/6):772-793. [9] Li L M,Sun M,Wang Y J,et al.U-Pb and Hf isotopic study of zircons from migmatised amphibolites in the Cathaysia Block:Implications for the early Paleozoic peak tectonothermal event in southeastern China[J].Gond Res,2011,19(1):191-201. [10] Zhou X M,Sun T,Shen W Z,et al.Petrogenesis of Mesozoic gra-nitoids and volcanic rocks in South China:A response to tectonic evolution[J].Episodes,2006,29(1):26-33. [11] Li Z X,Li X H.Formation of the 1300-km-wide intracontinental orogen and postorogenic magmatic province in Mesozoic South China:A flat-slab subduction model[J].Geology,2007,35(2):179-182. [12] Wang Y J,Zhang F F,Fan W M,et al.Tectonic setting of the South China block in the early Paleozoic:Resolving intracontinental and ocean closure models from detrital zircon U-Pb geochronology[J].Tectonics,2010,29(6):TC6020. [13] Wang Y J,Zhang A M,Fan W M,et al.Kwangsian crustal anate-xis within the eastern South China Block:Geochemical,zircon U-Pb geochronological and Hf isotopic fingerprints from the gneissoid granites of Wugong and Wuyi-Yunkai Domains[J].Lithos,2011,127(1/2):239-260. [14] Zhang F F,Wang Y J,Zhang A M,et al.Geochronological and geo-chemical constraints on the petrogenesis of Middle Paleozoic (Kwangsian) massive granites in the eastern South China Blo-ck[J].Lithos,2012,150:188-208. [15] 湖南省地质矿产局.中华人民共和国区域地质调查报告(地质部分)(南江桥幅、虹桥幅、平江县幅)[R].长沙:湖南省地质矿产局,1987:1-184. [16] 谢文安,申志军,谢玲琳.湖南省稀有稀土贵金属矿床特征与成矿规律[J].地质与勘探,1996,32(4):19-25. [17] 申志军,谢玲琳,权正钰.湖南省主要稀有稀土金属矿床特征[J].湖南地质,2003,22(1):30-33,63. [18] 肖朝阳. 平江瑚佩伟晶岩型铌钽矿床地质特征及成因[J].华南地质与矿产,2003(2):63-67. [19] 彭和求,贾宝华,唐晓珊.湘东北望湘岩体的热年代学与幕阜山隆升[J].地质科技情报,2004,23(1):11-15. [20] 邹慧娟,马昌前,王连训.湘东北幕阜山含绿帘石花岗闪长岩岩浆的上升速率:岩相学和矿物化学证据[J].地质学报,2011,85(3):366-378. [21] 石红才,施小斌,杨小秋,等.江南隆起带幕阜山岩体新生代剥蚀冷却的低温热年代学证据[J].地球物理学报,2013,56(6):1945-1957. [22] 湖南省地质局.平江幅H-49-30 1∶20万区域地质调查报告(地质部分)[R].长沙:湖南省地质局,1977:1-89. [23] 李昌元,戴塔根,余宗文,等.湖南省传梓源铌钽矿床地质特征及成因探讨[J].南方金属,2016(3):19-23. [24] 文春华,陈剑锋,罗小亚,等.湘东北传梓源稀有金属花岗伟晶岩地球化学特征[J].矿物岩石地球化学通报,2016,35(1):171-177. [25] 周芳春,刘翔,黄志飚,等.湖南省平江县仁里矿区铌钽多金属矿普查阶段性成果报告[R].长沙:湖南省核工业地质局311大队,2017:1-111. [26] 刘翔,周芳春,黄志飚,等.湖南平江县仁里超大型伟晶岩型铌钽多金属矿床的发现及其意义[J].大地构造与成矿学,2018,42(2):235-243. [27] 文春华. 幕阜山南缘地区伟晶岩矿物学、地球化学特征及含矿性分析[J].矿物岩石地球化学通报,2017,36(1):67-74. [28] 李鹏,李建康,裴荣富,等.幕阜山复式花岗岩体多期次演化与白垩纪稀有金属成矿高峰:年代学依据[J].地球科学,2017,42(10):1684-1696. [29] 冷双梁,谭超,黄景孟,等.幕阜山花岗岩地区稀有金属成矿规律初探[J].资源环境与工程,2018,32(3):351-357. [30] 王登红,王瑞江,李建康,等.中国三稀矿产资源战略调查研究进展综述[J].中国地质,2013,40(2):361-370. [31] 秦宇龙,郝雪峰,徐云峰,等.四川甲基卡地区花岗岩型稀有金属矿找矿规律及标志[J].中国地质调查,2015,2(7):35-39. [32] 徐云峰,秦宇龙,王显锋,等.四川容须卡伟晶岩型锂多金属矿床地球化学特征及成矿地质条件[J].中国地质调查,2019,6(1):34-40. [33] 王登红,王成辉,孙艳,等.我国锂铍钽矿床调查研究进展及相关问题简述[J].中国地质调查,2017,4(5):1-8. [34] 王登红,孙艳,刘喜方,等.锂能源金属矿产深部探测技术方法与找矿方向[J].中国地质调查,2018,5(1):1-9. [35] 许德如,邹凤辉,宁钧陶,等.湘东北地区地质构造演化与成矿响应探讨[J].岩石学报,2017,33(3):695-715. [36] Li X H,Li Z X,Ge W C,et al.Neoproterozoic granitoids in South China:Crustal melting above a mantle plume at ca.825Ma?[J].Precamb Res,2003,122(1/4):45-83. [37] 湖南省地质调查院.中国区域地质志·湖南志[M].北京:地质出版社,2017:1-1245. [38] 湖北省地质调查院.1∶20万通城县区幅区域地质调查报告[R].武汉:湖北省地质调查院,2013:1-288. [39] 湖南省地质局区域地质测量队.1∶25万地质图——平江幅[R].长沙:湖南省地质局,1978:1-87. [40] Wang L X,Ma C Q,Zhang C,et al.Genesis of leucogranite by prolonged fractional crystallization: A case study of the Mufushan complex,South China[J].Lithos,2014,206/207:147-163. [41] Ji W B,Lin W,Faure M,et al.Origin of the Late Jurassic to Early Cretaceous peraluminous granitoids in the northeastern Hunan province (middle Yangtze region),South China:Geodynamic implications for the Paleo-Pacific subduction[J].J Asian Earth Sci,2017,141:174-193. [42] Ji W B,Faure M,Lin W,et al.Multiple emplacement and exhumation history of the Late Mesozoic Dayunshan-Mufushan batholith in southeast China and its tectonic significance:1.Structural analysis and Geochronological constraints[J].J Geophys Res Solid Earth,2018,123(1):689-710. [43] 张鲲,徐德明,胡俊良,等.湘东北三墩铜铅锌矿区花岗岩的岩石成因——锆石U-Pb测年、岩石地球化学和Hf同位素约束[J].地质通报,2017,36(9):1591-1600. [44] 李乐广,王连训,田洋,等.华南幕阜山花岗伟晶岩的矿物化学特征及指示意义[J].地球科学,2019,44(7):2532-2560. [45] 湖北省第五地质队.湖南平江传梓源铌钽矿区初勘报告[R].丹江口:湖北省第五地质队,1973:1-54. [46] 文春华,陈剑锋,罗小亚,等.湖南重点矿集区稀有金属调查评价成果报告[R].长沙:湖南省地质调查院,2018:1-136. [47] 张强录,游先军,刘利生,等.湘东北虎形山钨铍矿主要赋矿层位的重新划分与成矿物质来源的探讨[J].矿产与地质,2012,26(5):371-375. [48] 李兆麟,杨荣勇,李文,等.中国不同成因伟晶岩形成的物理化学条件[J].地质科技情报,1998,17(S1):29-34. [49] 文春华,邵拥军.湘东北地区稀有金属矿床成矿作用研究[M].长沙:中南大学出版社,2019:1-198. [50] 李鹏春. 湘东北地区显生宙花岗岩岩浆作用及其演化规律[D].广州:中国科学院广州地球化学研究所,2006:1-131. [51] Zhu J C,Li R K,Li F C,et al.Topaz-albite granites and rare-metal mineralization in the Limu district,Guangxi province,southeast China[J].Mineral Depos,2001,36(5):393-405. [52] Evensen J M,London D.Experimental silicate mineral/melt partition coefficients for beryllium and the crustal Be cycle from migmatite to pegmatite[J].Geochim Cosmochim Acta,2002,66(12):2239-2265. [53] 王联魁,王慧芬,黄智龙.Li-F花岗岩液态分离的微量元素地球化学标志[J].岩石学报,2000,16(2):145-152. [54] 王登红,陈毓川,徐志刚,等.阿尔泰成矿省的成矿系列及成矿规律[M].北京:原子能出版社,2002:1-492. [55] 陈毓川,王登红,徐志刚,等.中国重要矿产和区域成矿规律[M].北京:地质出版社,2015:1-344.
2019, Vol. 6 
