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黄道山中酸性侵入岩,是滁县铜矿床外围岩体,其形成时代均为燕山早期。岩体呈岩株产出,由北东向南西向侵入,从内向外可分为内部相——近内部相——近前缘相——前缘相,分别由石英闪长岩、石英闪长斑岩、花岗闪长斑岩等构成,各岩相带的矿物成份,结构恃征,有一定的差异,但又无明显的界限,呈渐变关系。各岩带的岩石化学特征也有一定的规律性。与滁县铜矿床、安基山铜矿床等已知矿床母岩相比,其碱度、酸度、b 值、钙碱指数、组合指数以及岩石、单矿物的含铜丰度等数值相比,是一个有利于铜矿生成的母岩体,其前缘相是形成矿体的有利部位。就其稀土元素分布模式、硫同位素等分析,岩体来自幔源与壳源之间的混合源,为Ⅰ型即同熔型,与我国所划分的扬子型属于一类。
The middle-acid intrusive rocks of the Huangdao Mountain are the rock masses outside the Chu Chu copper deposit, and the formation ages are both early Yanshanian. The rock mass is produced by rock mass and intrudes from north east to west and west, and can be divided into inner facies-near inner facies-near fore-limb facies-front facies from inside to outside, which are composed of quartz diorite, quartz diorite Porphyry and granodiorite porphyry. The mineral composition and structure of each lithofacies belonged to a certain difference, but there was no obvious boundary between them. Rock petrochemical characteristics of each rock has a certain regularity. Compared with the parent rocks of known deposits such as Chuchu copper deposit and Anji Mountain copper deposit bed, the alkalinity, acidity, b value, calcification index, combination index and the copper content of rocks and single minerals , Is a parent rock that is favorable to the formation of copper deposits. Its front phase is a favorable site for the formation of ore bodies. For the analysis of REE distribution patterns and sulfur isotopes, the rock mass comes from the mixed source between the mantle source and the crust source, which is type I or same type and belongs to the same type as the Yangtze type defined by China.