浅谈邹家山—石洞断裂带成矿条件及其控矿特征

Mineralization Condition of Zoujiashan-Shidong Fracture and Its Ore Controlling Characteristics

邹家山—石洞断裂是相山地区主要的控矿断裂之一,全长约20km。所控制的储量约占相山铀矿田总探明储量的三分之二以上。因此,研究该断裂带及其对铀矿床的控制作用,为相山矿田的重新评价及扩大外围找矿提供科学依据和成矿背景资料具有重要意义。笔者结合6122矿床生产,同时结合前人的研究资料,对断裂带的成矿条件、控矿特征等进行分析和研究,提出了该断裂带具有的几个控矿特征,即该断裂带具有多期活动的历史、邹—石断裂带与岩性复合控矿、邹—石断裂带与火山塌陷构造复合控矿。同时分析了铀的来源、容矿空间和保矿等三个成矿条件。

Zoujiashan-Shidong fracture is one of the main ore-controlling fault in Xiangshan area, which total length are about 20kin, Its controlled reserves account is more than two-thirds of the total proved reserves in Xiang- shah uranium field. It has significance to provide scientific basis and mineralization background information for re- evaluating Xiangshan orefield and expanding the periphery prospecting by researching Zou-Shi fault zone and its control on uranium deposits. Based on the 6122 deposits and some previous information, the mineralization condi- tions and ore characteristics of the Zou-Shi fault zone are researched. It shows that Zou-Shi fault zone has several ore-controlling characteristics, that is, Zou-Shi fracture zone history, Zou-Shi fault and lithologic control mine, Zou - Shi fault with volcanic collapse structures composite ore-controlling. It has a certain significance for the next stage of production and prospecting by analysing three metallogenic conditions of the source of uranium, ore-containing space and ore preservation.