冀东马兰峪地区脆韧性剪切带及其与金矿的关系

The Brittle-tough Shear Belt in Malanyu Area and Its Gold Deposits

脆韧性剪切带的形成,大规模中酸性岩浆的侵入以及金的富集成矿是马兰峪地区燕山期地质构造的主要特征,脆韧性剪切带在空间上具有一定的组合规律,千枚状糜棱岩为其识别标志,金的富集成矿与角闪质岩及花岗岩有关,金矿的形成受燕山期构造的控制。

The formation of the brittle-tough shear belt, the intrusion of neutral-acidic magma and the mineralization of the gold deposits are the main characteristics of the geological structure of Malanyu, in the east of Hefaei Province , formed in the Yan-shan Period . The location and spacing of the belt followed certain regularities. The phyllite-like tnylonite is taken as its distinguishing sign.Hign concentration of gold element is related to hornblend and granite found there.And the geological structure conditioned the gold deposits.