摘要
三矿沟铁铜矿床位于两组构造交汇处,矿体产于花岗岩体外接触带,属典型的夕卡岩型矿床。通过大量光薄片的观察鉴定和电子探针分析,查明矿石矿物种类较多,其中以黄铜矿、黄铁矿、磁铁矿为主,另见有斑铜矿、方铅矿、闪锌矿、赤铁矿、褐铁矿、孔雀石、硅孔雀石、蓝铜矿,及少量钛铁矿、黝铜矿、毒砂、碲银矿、银金矿等。其中碲银矿为本次工作新发现矿物。
Sankuanggou Iron-Copper mineral deposit is located in the outside of contact zone of the Variscan granite intrusive, belonging to typical skarn type.Based on numerous microscopic study on transparent and polished thin sections and electronic probe analysis for different minerals. More than ten kinds of mineral ores are identified. The main metallic mineral ores are magnetite, Chalcopyrite, pyrite, with minor amount of bornite, sphalerite, galena, hematite, limonite, malachite,chrysocolla, azurite, and minor ilmenite, tetrahedrite, arsenopyrite, hessite, electrum and associated Selenium and Tellurium gallium indium and other useful components. Hessite is first discovered in this ore district by the authors.
引文
[1]葛文春,隋振民,吴福元,张吉衡,徐学纯,程瑞玉.2007.大兴安岭东北部早古生代花岗岩锆石年龄同位素特征及地质意义[J].岩石学报.23(2):423-440.
[2]吕鹏瑞,顾雪祥,李德荣,彭涛涛,张明洋.2011.黑龙江嫩江地区三矿沟矽卡岩型铜-铁-钼多金属矿床的成矿流体特征与成矿机制[J].地质通报,30(10):1563-1574.
[3]黎心远,赵元艺.2018.黑龙江三矿沟-庄乎河地区岩浆岩年代学、地球化学研究及其俯冲构造与成矿意义[J].地质学报,92(02):244-262.
[4]芮宗瑶,赵一鸣,王龙生,王义天.2003.挥发份在夕卡岩型和斑岩型矿床形成中的作用[A].矿床地质.22(1):141-148.
[5]武广,孙丰月,赵财胜,李之彤,赵爱琳,庞庆帮,李广远.2005.额尔古纳地块北缘早古生代后碰撞花岗岩的发现及其地质意义[J].科学通报,50(20):2278-2286.
[6]徐克勤,涂光炽.1986.花岗岩地质和成矿关系(国际学术会议论文集)[C].南京:江苏科学技术出版社.128-135.
[7]杨海涛,尹京武,杨林,邵兴坤,刘春花.2011.电子探针在黑龙江省三矿沟铁铜矿床含金、银矿物研究中的应用[J].电子显微学报,30(03):195-199.
[8]褚少雄,刘建明,徐九华,魏浩,柴辉,佟匡胤.2012.黑龙江三矿沟铁铜矿床花岗闪长岩锆石U-Pb定年、岩石成因及构造意义[J].岩石学报,28(02):433-450.
[9]赵一鸣,毕承思,邹晓秋,孙亚莉,杜安道,赵玉明.1997.黑龙江多宝山铜山大型斑岩铜(钼)矿床中辉铜矿的铼-锇同位素年龄[J].地球学报.18(1):61-67.