顺层滑动构造对安徽狮子山矿田“多层楼”矿床的控制

BEDDING SLIPPING STRUCTURES CONTROL ON THE "MULTISTOREY" ORE DEPOSITS,IN THE SHIZISHAN OREFIELD OF ANHUI

位于长江中下游铁铜成矿带铜陵聚矿区的狮子山矿田,大部分矿床的主矿体具有顺层产出的特点,故有“多层楼”之称,本文在对狮子山矿田构造要素进行详细观测的基础上,进行了构造变形系统时序与形成机制的研究及构造复合效应的分析,重点对顺层滑动构造的特点和成因进行了较深入的剖析,认为狮子山矿田矿床的主要构造控制因素是多层顺层滑动,从而较合理地解释了该矿田的矿床在空间上呈“多层楼”分布的特征。

The Shizishan orefieId is situated in the Tong1ing metaIlogenetic province, the middle -- lower Yangtze River reaches' iron -- copper metaIlogenetic beId. The major orebodies of most ore deposits il1 the orefield occur along beds. forming a 'multistorey' style. This pa- per researches into the time sequence and forming mechanism of the structural deformation system as welI as the compounding structure effect, with an emphasis on the characteris- tics and genesis of beddlng sl[pping structure based on detaiIed investigation of structural elements of the Shiz1shan orefieId, concludes that multipIe bedding slipping tectonically plays the major role ln control of ore deposits, the Shizishan orefield, a reasonable expIa- nation of the 'multistorey' dIstribution in space for ore deposits in the orefieId.