皖浙赣断裂带(安徽段)的控岩控矿作用

<TITLE>ORE-CONTROLLING AND CONTROL ROCK ROLE OF ANHUI,ZHEJIANG AND JIANGXI FAULT ZONE(ANHUI)

前人所指的"皖浙赣断裂带"是由数条不同时代形成的、不同方向的断层组成的规模巨大的区域性断裂带。最早的断裂带形成于新元古代,北延方向为北东东向;加里东期为近东西向;最晚的形成于晚中生代,安徽段以歙县-绩溪-宁国断裂带为代表,属于通常意义上所指的具有区域控岩控矿作用的皖浙赣断裂带的组成部分,断裂白云母40Ar-39Ar测年值为230～254 Ma,既对早期构造进行了不同程度地改造,又控制了其后侏罗—白垩纪红色盆地、燕山期岩浆岩及一系列不同规模矿床的形成和分布,燕山晚期沿北北东向进一步活动,是一条具有控矿作用的重要的构造岩浆岩带。

The previous reference to ＂Anhui Zhejiang and Jiangxi fault＂ is formed by a few different times,different directions of the faults of the regional composition of the scale of the fault.The first fault formed in the Neoproterozoic,North extension direction of NEE;Caledonian nearly east-west;latest formation in the late Mesozoic,the Anhui section of the Shexian-Jixi-rather as the representative of the country fault,belonging to the usual sense of control within the meaning of rock with a regional ore-controlling role of fault zone components of Zhejiang and Jiangxi and Anhui,breaking muscovite 40Ar-39Ar dating is 230 ~ 254 Ma,were both on the early tectonic transformation to varying degrees,but also control of the later Jurassic-Cretaceous red basin,Mesozoic magmatic rocks and the formation of a series of different size and distribution of deposits,late Yanshan NNE to further activities,is a role with an important ore-controlling tectonic magmatic belt.