摘要
本文通过铜陵地区狮子山矿田构造要素的系统分析,划分了NE向、E～W向、S～N向和NNE向四个构造变形系统,分析了它们之间的复合效应,并建立了构造变形的复合时序。对矿田内的顺层滑脱构造进行了研究,并对其形成机制进行了探讨.文中对构造的控岩、控矿作用进行了分析,阐明了岩矿体的空间分布规律,论证了矿床主要受NNE向构造与其它构造多重复合控制,顺层滑脱构造是主要储矿构造,最后论述了"多层楼"成矿的形成机理.
Based on the systematic analysis of the structural elements of the Shizishan orefield in Tongling district, the author has established NE, EW, SN and NNE-trending tectonic deformation sys- tems and restored the time sequence of their combination. This paper studies the characteristics of along- bed decollements and their forming mechanism and expounds the spatial distribution law of intrusions and ore bodies. It is concluded that the ore deposits are mainly controlled by the NNE structures and other structures, and that the along-bed decollements are the key structures for ore reservation. It finally discusses the 'poly-story' metallogenetic mechanism.
出处
《安徽地质》
1992年第2期1-14,共14页
Geology of Anhui
关键词
铜陵狮子山
顺层滑脱构造
构造控岩控矿
矿床分布规律
Shizishan orefield along-bed decollement tectonic-controlled instrusions and orebodies distribution law of ore deposits
