论文部分内容阅读
银碉矿区位于浙、闽、粤沿海中生代火山岩分布区中段。富含铅、锌的硅质灰岩为矿源层,对矿床形成提供了相当数量的铅锌。矿石矿物主要是闪锌矿、方铅矿、黄铁矿,伴生少量的黄锕矿、磁黄铁矿、毒砂及辉银矿。脉石矿物主要是石英、石榴石、方解石、绿泥石、硅灰石、透辉石、阳起石及萤石。矿体主要呈层状、似层状或透镜状产于典型地槽复理石建造中,它们严格受中石炭纪硅质灰岩控制。本矿的形成过程,起源于晚古生代冒地槽环境下,由同生沉积作用形成初步富集的含矿层(C_2)。在后期地质事件中,该初始富集的胚胎矿遭受到构造、岩浆及热卤水的作用,活化、转移改造成为现有的工业矿床。
Yintai mine is located in Zhejiang, Fujian and Guangdong coastal Mesozoic volcanic rocks in the middle. The lead-rich and zinc-rich siliceous limestone is the source rock and provides a considerable amount of lead and zinc to the deposit. Ore minerals are mainly sphalerite, galena, pyrite, associated with a small amount of actinides, pyrrhotite, arsenopyrite and glitter. Gangue minerals are mainly quartz, garnet, calcite, chlorite, wollastonite, diopside, actinolite and fluorite. Ore bodies are predominantly lamellar, laminar or lenticular, typical of trough flysch formation and are strictly controlled by the Mid-Carboniferous siliceous limestone. The formation of this deposit originated from the sedimentation of syngenetic sediments in the late Paleozoic upset trough environment to form a primarily enriched ore-bearing layer (C 2). In the later geological events, the initially enriched embryo mine was subjected to tectonization, magma, and hot brine to transform and transform it into an existing industrial deposit.