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黑龙江省双鸭山市羊鼻山铁钨矿床处于中亚造山带东段的佳木斯地块中部。兴东群大盘道组变质岩系为矿区主要赋矿地层,铁矿体呈层状、似层状赋存于大盘道组第一岩段,白钨矿矿体呈透镜状和脉状产于铁矿体底板围岩中,受片麻状花岗岩与大盘道组大理岩的接触带控制;主要含矿岩石为石榴石矽卡岩和透辉石矽卡岩,钨矿石中主要金属矿物为磁黄铁矿和白钨矿,并含少量磁铁矿、黄铁矿、黄铜矿、闪锌矿、锡石、毒砂和辉钼矿。含钨石英脉中δ18O水值为3.6‰~7.5‰,δD值为-120.9‰~-66.2‰,表明其成矿流体以岩浆水为主。矽卡岩中与白钨矿共生的金属硫化物δ34S值为16.1‰~18.1‰,206Pb/204Pb值为17.879~18.863,207Pb/204Pb值为15.537~15.603,208Pb/204Pb值为38.202~38.544,表明金属硫化物中的硫和铅主要来源于地层与地壳重熔型岩浆。结合钨矿成矿地质特征,认为羊鼻山铁钨矿床中钨矿的成因类型应属矽卡岩型。
Heibei Province Shuangyashan Sheep nose Hill iron ore deposit in the eastern section of the Central Asian Jiamusi block central. The metamorphic rocks of the Dapingdao Formation in the Hedong Group are the main ore-bearing strata in the ore district. The ore bodies are stratified and appear to be stratified in the first rock segment of the Dapingdao Formation. The scheelite ore bodies are lenticular and vein-shaped In the surrounding rock of the iron ore body, it is controlled by the contact zone between the gneissic granite and the marble of the Dapandao Formation. The major ore-bearing rocks are garnet skarn and diopside skarn. The main metal minerals in the tungsten ore are magnetic Pyrite and scheelite with a small amount of magnetite, pyrite, chalcopyrite, sphalerite, cassiterite, arsenopyrite and molybdenite. The δ18O values of tungsten-bearing quartz veins ranged from 3.6 ‰ to 7.5 ‰, and the δD values ranged from -120.9 ‰ to -66.2 ‰, indicating that the ore-forming fluid is dominated by magmatic water. The δ34S value of metal sulfides symbiotic with scheelite in skarn is 16.1 ‰ ~ 18.1 ‰, 206Pb / 204Pb is 17.879 ~ 18.863, the value of 207Pb / 204Pb is 15.537 ~ 15.603, and the value of 208Pb / 204Pb is 38.202 ~ 38.544, indicating that Sulfur and lead in metal sulfides are mainly derived from strata and crustal remelting magmas. Combined with the geological characteristics of tungsten ore deposits, it is considered that the genetic type of tungsten ore in the Yangbizanshan iron-tungsten deposit should be skarn type.