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在适当的古地理、古气候条件,同时又有铜质来源的情况下,沉积作用可以形成具有一定层位的铜矿床,区域变质作用往往就在同生沉积的基础上,迭加以不同程度的“变质热液”改造,使铜矿品位明显加富,甚至形成富矿柱和矿囊。所以,研究“变质热液脉”的空间分布规律,对正确圈定矿体十分必要。这里就篦子沟铜矿床为例,对变质脉的一些主要地质特征谈谈初步认识。
With proper palaeogeography, palaeoclimatic conditions and copper source at the same time, sedimentation can form a copper deposit with a certain horizon. The regional metamorphism is often based on syngenetic deposition, superimposed with different degrees Of the “metamorphic hydrothermal” transformation, the copper grade significantly rich, and even the formation of ore pillars and ore pockets. Therefore, it is very necessary to study the spatial distribution of “metamorphic hydrothermal veins” to correctly delineate ore bodies. Here giazigou copper deposit as an example, some of the main geological characteristics of the metamorphic talk about initial understanding.