云南省马关县都龙花石头矿区钨锡矿化特征与成矿远景
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摘要
滇东南老君山成矿区是滇东南—桂西锡多金属成矿带的重要组成部分之一。花石头位于老君山花岗岩体西南侧,老君山燕山两期花岗岩均有出露,锡钨石英脉型矿床(点)众多,但相关地质研究程度较低。该区矿化类型包括蚀变花岗岩型钨锡矿化、接触蚀变带铜钨锡矿化、强硅化带中铜铅锌多金属矿化等。围岩蚀变以云英岩化为主,其次包括硅化、钾长石-高岭土化和黄铁矿化等。结合近期地质勘探所揭露的新信息,本文对该区锡钨成矿地质特征进行了初步总结,提出该区钨锡成矿作用与燕山晚期老君山中酸性岩浆侵入活动(以第2期为主)密切,属于岩浆期后热液充填交代形成的锡钨石英脉型矿床。燕山晚期中酸性岩体,特别是第2期中细粒二云二长花岗岩对成矿作用是主要的控矿因素。其中,2期岩体接触带、岩体与围岩内外接触带是有利成矿部位。在此基础上,建立了花石头矿区钨锡岩浆期后热液成矿模式。
The Laojunshan metallogenic area is one of the important parts of the southeastern Yunnan-western Guangxi metallogenic province. The Huasitou area in Maguan County is in southwest side of the Laojunshan granite batholith. Yanshanian Laojunshan granites of two stages are exposed in two sides of the Husshitou area in which there are a series of tin-tungsten quartz vein type mineral occurrences. A little geological research of the area has been carried out. The mineralization types in this area include the altered granite-type tungsten-tin mineralization, copper-tungsten mineralization in contact alteration zone and copper-lead-zinc polymetallic mineralization in the strong silicification zone. Types of wall rock alteration include the major greisenization, and minor silicification, potash K-feldspathization, kaolinization, and pyritization. Combined with the new information revealed by recent geological exploration, geological characteristics of tin and tungsten mineralization in the area have been basically summarized in this paper. It is suggested that the W-Sn mineralization was closely related to the late Yanshanian intermediate-acid magmatic intrusion(dominated by the second stage intrusion) in the Huashitou area. The mineralization belongs to the tin-tungsten quartz vein type formed by filling and replacement of the post-magmatic hydrothermal fluid. The late Yanshanian intermediate-acid intrusion, especially the medium to fine grained muscovite-biotite mozongranite of the second stage, is the main controlling factor for the mineralization. The internal and external contact zones between two stage granites and between the intrusion and wall rocks are favorable ore-forming zones. On the basis above, a magmatic hydrothermal W-Sn metallogenic model has been established for the W-Sn mineralization in the Huashitu area.
The Laojunshan metallogenic area is one of the important parts of the southeastern Yunnan-western Guangxi metallogenic province. The Huasitou area in Maguan County is in southwest side of the Laojunshan granite batholith. Yanshanian Laojunshan granites of two stages are exposed in two sides of the Husshitou area in which there are a series of tin-tungsten quartz vein type mineral occurrences. A little geological research of the area has been carried out. The mineralization types in this area include the altered granite-type tungsten-tin mineralization, copper-tungsten mineralization in contact alteration zone and copper-lead-zinc polymetallic mineralization in the strong silicification zone. Types of wall rock alteration include the major greisenization, and minor silicification, potash K-feldspathization, kaolinization, and pyritization. Combined with the new information revealed by recent geological exploration, geological characteristics of tin and tungsten mineralization in the area have been basically summarized in this paper. It is suggested that the W-Sn mineralization was closely related to the late Yanshanian intermediate-acid magmatic intrusion(dominated by the second stage intrusion) in the Huashitou area. The mineralization belongs to the tin-tungsten quartz vein type formed by filling and replacement of the post-magmatic hydrothermal fluid. The late Yanshanian intermediate-acid intrusion, especially the medium to fine grained muscovite-biotite mozongranite of the second stage, is the main controlling factor for the mineralization. The internal and external contact zones between two stage granites and between the intrusion and wall rocks are favorable ore-forming zones. On the basis above, a magmatic hydrothermal W-Sn metallogenic model has been established for the W-Sn mineralization in the Huashitu area.
引文
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[11]李廷俊,周磊,赵云魁,等.都龙矿区矿产资源开发利用历史与现状[J].矿物学报,2016,36(4):463-470.
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[13]陶志华,苏航,韦文彪,等.马关县都龙花石头钨锡矿床地质分析[J].世界有色金属,2017(15):193+195.
[14]廖震,刘玉平,李朝阳,等.都龙锡锌矿床绿泥石特征及其成矿意义[J].矿床地质,2010,29(1):169-176.
[15]缪应理,张世奎,韦文彪,等.云南都龙锡多金属矿床金石坡矿段钨铜钼矿化特征及地质意义[J].矿物学报,2013,33(4):510-514.
[16]张世奎,缪应理,郭跃进.云南马关都龙辣子寨碳酸盐岩型铅锌矿体的发现及其地质意义[J].矿物学报,2013,33(4):456-461.
[17]何芳,张乾,王大鹏,等.云南都龙Sn-Zn多金属矿床成矿物质来源--硫、碳、氧稳定同位素证据[J].矿物岩石地球化学通报,2014,33(6):900-907.
[18]叶霖,鲍谈,刘玉平,等.云南都龙锡锌多金属矿床成矿阶段与成矿流体[J].矿物学报,2016,36(4):503-509.
[19]蓝江波,刘玉平,叶霖,等.滇东南燕山晚期老君山花岗岩的地球化学特征与年龄谱系[J].矿物学报,2016,36(4):441-454.
[20]苏航,韦文彪,陶志华,等.云南都龙矿区隐伏花岗岩地质地球化学特征与锡锌成矿作用[J].矿物学报,2016,36(4):488-496.
[21]苏航,王小娟,陈智明,等.滇东南都龙锡锌多金属矿床中符山石的发现与地质意义[J].矿物学报,2016,36(4):529-534.
[22]韦文彪,刀学强,赵迁,等.滇东南都龙锡锌多金属矿床一种新的铜矿化类型[J].矿物学报,2016,36(4):455-462.
[23]陶志华,苏航,韦文彪,等.滇东南都龙矿区南北向断裂构造演化与控矿[J].矿物学报,2016,36(4):497-502.
[24]叶霖,刘玉平,张乾,等.云南都龙超大型锡锌多金属矿床中闪锌矿微量及稀土元素地球化学特征[J].吉林大学学报(地球科学版),2017,47(3):734-750.
[25]叶霖,鲍谈,刘玉平,等.云南都龙锡锌矿床中白钨矿微量元素及稀土元素地球化学[J].南京大学学报(自然科学),2018,54(2):245-258.
[2]冯佳睿,毛景文,裴荣富,等.云南瓦渣钨矿区老君山花岗岩体的SHRIMP锆石U-Pb定年、地球化学特征及成因探讨[J].岩石学报,2010,26(3):845-857.
[3]王小娟,刘玉平,缪应理,等.都龙锡锌多金属矿床LA-MC-ICPMS锡石U-Pb测年及其意义[J].岩石学报,2014,30(3):867-876.
[4]张斌辉,丁俊,任光明,等.云南马关老君山花岗岩的年代学、地球化学特征及地质意义[J].地质学报,2012,86(4):587-601.
[5]周祖贵.都龙矿区资源总价值[J].云南冶金,2002,31(5):62-64.
[6]刘玉平.一个受后期改造和热液叠加的块状硫化物矿床--都龙超大型锡锌多金属矿床[J].矿物岩石地球化学通报,1998,17(1):22-24.
[7]刘玉平,李朝阳,刘家军.都龙矿床含矿层状夕卡岩成因的地质地球化学证据[J].矿物学报,2000,20(4):378-384.
[8]曾志刚,李朝阳,刘玉平,等.老君山成矿区变质成因夕卡岩的地质地球化学特征[J].矿物学报,1999,19(1):48-55.
[9]冯佳睿,毛景文,裴荣富,等.滇东南老君山地区印支期成矿事件初探--以新寨锡矿床和南秧田钨矿床为例[J].矿床地质,2011,30(1):57-73.
[10]范承钧.云南锡矿带之划分及其区域成矿地质特点[J].云南地质,1988,7(1):1-12.
[11]李廷俊,周磊,赵云魁,等.都龙矿区矿产资源开发利用历史与现状[J].矿物学报,2016,36(4):463-470.
[12]秦德先,刘春学.矿产资源经济学[M].北京:科学出版社,2002.
[13]陶志华,苏航,韦文彪,等.马关县都龙花石头钨锡矿床地质分析[J].世界有色金属,2017(15):193+195.
[14]廖震,刘玉平,李朝阳,等.都龙锡锌矿床绿泥石特征及其成矿意义[J].矿床地质,2010,29(1):169-176.
[15]缪应理,张世奎,韦文彪,等.云南都龙锡多金属矿床金石坡矿段钨铜钼矿化特征及地质意义[J].矿物学报,2013,33(4):510-514.
[16]张世奎,缪应理,郭跃进.云南马关都龙辣子寨碳酸盐岩型铅锌矿体的发现及其地质意义[J].矿物学报,2013,33(4):456-461.
[17]何芳,张乾,王大鹏,等.云南都龙Sn-Zn多金属矿床成矿物质来源--硫、碳、氧稳定同位素证据[J].矿物岩石地球化学通报,2014,33(6):900-907.
[18]叶霖,鲍谈,刘玉平,等.云南都龙锡锌多金属矿床成矿阶段与成矿流体[J].矿物学报,2016,36(4):503-509.
[19]蓝江波,刘玉平,叶霖,等.滇东南燕山晚期老君山花岗岩的地球化学特征与年龄谱系[J].矿物学报,2016,36(4):441-454.
[20]苏航,韦文彪,陶志华,等.云南都龙矿区隐伏花岗岩地质地球化学特征与锡锌成矿作用[J].矿物学报,2016,36(4):488-496.
[21]苏航,王小娟,陈智明,等.滇东南都龙锡锌多金属矿床中符山石的发现与地质意义[J].矿物学报,2016,36(4):529-534.
[22]韦文彪,刀学强,赵迁,等.滇东南都龙锡锌多金属矿床一种新的铜矿化类型[J].矿物学报,2016,36(4):455-462.
[23]陶志华,苏航,韦文彪,等.滇东南都龙矿区南北向断裂构造演化与控矿[J].矿物学报,2016,36(4):497-502.
[24]叶霖,刘玉平,张乾,等.云南都龙超大型锡锌多金属矿床中闪锌矿微量及稀土元素地球化学特征[J].吉林大学学报(地球科学版),2017,47(3):734-750.
[25]叶霖,鲍谈,刘玉平,等.云南都龙锡锌矿床中白钨矿微量元素及稀土元素地球化学[J].南京大学学报(自然科学),2018,54(2):245-258.