摘要
矿体产于华力西期黑云二长闪长岩、黑云二长花岗岩岩体与蓟县系地层中的结晶灰岩、条带状大理岩、硅质灰岩接触带上的矽卡岩中,严格受接触带及矽卡岩所控制。矿体形态多呈弧形弯曲的束状矿脉群出现,并且沿构造线有尖灭再现、分叉复合及膨胀收缩的现象。矿体规模小而富的小矿体,但沿带矿化特征明显,显示了张性断裂构造成矿的特征,矿体多呈透镜状、扁豆状、串珠状产出,矿体一般延深较小。矿床成因属高温热液交代矽卡岩型钨多金属矿。
The orebodies occurred in the Skarn of contact zone,which between Variscan biotite monzonitic granite,biotite monzonitic diorite and Jixian system Crystal line limestone,banded marble,Siliceous limestone.The orebodies are mostly in the form of arc-shaped bend of the bundle of veins group,and have phenomenon of pinchout and recurrence,bifurcation and composite,expansion and contraction along the tectonic lines.The orebodies scale is small and have many little orebodies,mineralization characteristic is obvious,showing the feature of extensional fault metallogenic.Most of the ore bodies appear in lenticular,phacoidal and beadlike,extending shortly.The deposit is conf irmed to be tungsten-polymetallic of skarn,forming in the high-temperature hypothermal metasomatism enviorment.
作者
苏雅拉吐
赵雪
SUYALATU;ZHAO Xue(Zhengyuan International Mining Co.,Ltd.,Beijing,101300 China;Northwest Geological Exploration Institute of China General Administration of Metallurgical Geology,Xi'an,Shaanxi Province,710061 China)
出处
《科技创新导报》
2020年第32期76-78,共3页
Science and Technology Innovation Herald
关键词
成矿远景
矿床成因
钨矿
新疆哈密市大黑山
Metallogenic prospect
Deposit genesis
Tungsten ore
Daheishan in Hami City
