拉陵灶火中游地区铜多金属矿床地处东昆仑成矿带西段,是青海省寻找斑岩型铜、金、钼矿的潜力区.该矿床矿体类型主要有层控矽卡岩型、接触交代矽卡岩型、斑岩型、岩浆熔离型4种,目前已圈出矿化带6条,矿体19条.研究区铜多金属矿化集中产于古元古界金水口岩群斜长角闪岩中,受北西向断裂控制,中、晚三叠世,早侏罗世酸性侵入体与金水口岩群内外接触带是矽卡岩化、多金属矿化产出的有利部位.物化探测量结果显示,区内Mo、W、Cu水系异常、土壤异常,强磁异常、带状低缓磁异常以及低阻中高极化异常是寻找铜钨钼矿的重要找矿标志,对该区进一步找矿工作有一定的指导意义.
The mid-Lalingzaohuo copper polymetallic deposits in the western part of East Kunlun Metallogenic Belt are prospective mineralization areas in Qinghai for porphyry copper,gold and molybdenum.There are 4 types of orebodies in the copper polymetallic deposits,namely the stratabound skarn type,contact metasomatic skarn type,porphyry type and magmatic liquation type.6 mineralized zones and 19 orebodies have been delineated by far.The copper polymetallic mineralization in the area is concentrated in the Plagioclase amphibolites of Paleoproterozoic Jinshuikou Group,and controlled by the NW fault.The inner and outer contact zones between Middle-Late Triassic and Early Jurassic acidic intrusive bodies and Jinshuikou Group rocks are the favorable part for skarnization and polymetallic mineralization occurrence.According to the results of physical and chemical prospecting,the drainage anomaly,soil anomaly,strong magnetic anomaly,banded lower magnetic anomaly and low resistance medium-high polarization anomaly of Mo,W and Cu are important prospecting criteria for copper,tungsten and molybdenum deposits,which can guide further exploration work in the area.
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