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前期普查中发现杭州余杭中泰下铜山多金属矿区产有矽卡岩型钨钼多金属矿脉,并有铅锌矿(化)点分布,可能是以矽卡岩型为主,伴有沉积改造型多金属矿床。矿化与化探异常具有较好吻合性,通过聚类分析以及因子分析,成矿区内有Pb-Mo-Zn-Sb,W-Cu-Bi,Sb-Bi,Ag四类元素组合。钨、铋、铜和钼异常,体现高温元素的特点,空间分布上与区内花岗闪长岩密切相关,属甲类异常,目前已发现二条矽卡岩型钨、钼、铋矿脉,找矿潜力巨大;铅、锌(钼)异常与板桥山组第六岩性段(白云岩)有关,呈带状北东向展布,铅和锌异常规模大,多处见铅锌矿(化)脉,属于乙类异常,该异常可能反映未出露的矿化体或在碳酸盐岩风化过程中残余富集铁和锰而形成金属元素的次生富集,需进一步加以确认。
The pre-census found that skarn-type tungsten-molybdenum polymetallic ore veins were produced in the Tongshan polymetallic ore district of Yuhang, Hangzhou, China and Thailand, with the distribution of lead-zinc ore (chemical), which may be mainly skarn-type with deposition Transformation of polymetallic deposits. Mineralization and geochemical anomalies have good agreement. By cluster analysis and factor analysis, there are four kinds of elemental combinations of Pb-Mo-Zn-Sb, W-Cu-Bi, Sb-Bi and Ag in the ore- Tungsten, bismuth, copper and molybdenum anomalies, reflecting the characteristics of high-temperature elements, the spatial distribution of the granodiorite is closely related to the region, is an exception, has found two skarn tungsten, molybdenum, bismuth veins, find The potential of lead and zinc (Molybdenum) is related to the sixth lithological (dolomite) of Banqiaoshan Formation, showing a northerly belt distribution. The scale of Pb and Zn anomalies is large, and Pb-Zn (Pb) The anomaly, which belongs to Group B anomalies, may reflect the secondary enrichment of unexposed mineralized bodies or metal elements formed by residual iron and manganese enrichment during carbonate weathering, which needs to be further confirmed.