论文部分内容阅读
桦树沟铜矿生成于陆缘海的断陷盆地，容矿岩系为热水沉积硅质岩。其矿石的结构构造、空间分布，矿物组合及化学成分、稳定同位素及成矿温度等１２个成因参数特征，均表明条带状纹层状铜矿石形成于海底喷气－热液沉积成矿作用。而角砾状碧玉黄铜矿矿石是由加里东晚期造山运动产生的变质热液充填交代碧玉岩角砾所成。铜矿体不仅局限于向斜的ＮＥ翼，在其ＳＷ翼和向斜向ＮＷ的延长部分找矿是有希望的。
The Chengshugou copper deposit was formed in the rifted basin of Luyuanhai, and the ore-bearing rock was hydrothermal sedimentary chert. The structural features, spatial distribution, mineral assemblages and chemical compositions, stable isotopes and metallogenic temperature of the ore are all characterized by 12 genetic parameters. All of these indicate that banded laminar copper ores formed in the seabed jet-hydrothermal sedimentary mineralization . The brecciated jasper chalcopyrite ore is formed by metamorphic hydrothermal filling of accountable jasper breccia produced by the late Caledonian orogeny. The copper ore body is not limited to the syncline NE wing but is promising in prospecting for its SW wing and the extension of the NW strike.