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一、矿田地质概况本矿田位于矿区一级褶皱——五子山复式背斜西南倾没端,与老×矿田同受矿区二级褶皱老卡背斜控制(图1).矿田北以老熊硐断层与老×矿田分界,南至大苍山一带,西至××大断层,东至龙头寨,面积达数十平方公里.矿田因受东西向断层分割,以及矿化特征的不同可分为卡新、鸡心脑、龙树脚三个矿段.花岗岩接触带之夕卡岩型多金属矿床集中分布于卡新矿段若干地区的两平方公里范围内(见图1).现将该矿段的地质概况叙述如下.
I. ORE GEOLOGICAL OVERVIEW The ore field is located on the southwestern tip of Wulizhan anticlinal fold in the mining area and is controlled by the second-order fold old card anticline in the mine area (Figure 1) Old Bear Cave fault and the old × orefield demarcation, south to the Great Cangshan area, west to × × large fault, east to the leading village, an area of dozens of square kilometers. Due to east-west fault zone and mineralization characteristics Different can be divided into new card, chicken heart, Dragon Foot three mines.The granite contact with the skarn-type polymetallic deposits concentrated in a number of areas in the new section of card two square kilometers (see Figure 1) Now the geology of this section is described below.