辽东二棚甸子-万宝地区铜多金属矿床 控矿条件分析及成矿预测

辽东二棚甸子-万宝地区位于辽东裂谷带的中部,属华北地台北缘太平洋成矿带.由于受裂谷的控制,其成矿地质条件十分优越,是铜、铅锌、钼、金等金属矿产的富集地带.文章通过研究区内层控及与岩浆成矿作用有关类型的典型矿床成矿地质特征的对比研究,总结出区域多金属矿床成矿控矿条件,并以此为基础,结合区内地质、矿物、地球化学等找矿标志,将二棚甸子-桦树甸子及万宝外围划分为该区最有找矿潜力,也是快速实现找矿突破的首选靶区.

Ore-controlling conditions and metallogenic prognosis of copper polymetallic deposits in Erpengdianzi-Wanbao area of eastern Liaoning Province

The Erpengdianzi-Wanbao area of eastern Liaoning Province is located at the center of Liaodong rift zone. Because of the "rift control" action, the ore-forming geological conditions of this area are very favorable, and hence this area has become an enrichment zone of such metals as copper, lead, zinc, molybdenum and gold, which belongs to the North China platform marginal Pacific metallogenic belt. Based on a comparative study of the metallogenic geological characteristics of typical deposits related to stratabound and magmatic activities, the authors summed up the regional polymetallic ore-controlling conditions and, in combination with geological, mineralogical and geochemical prospecting criteria, delineated Erpengdianzi-HuaShudianzi area and peripheral area of Wanbao as the areas with most favorable prospecting potential, which are also preferred target areas for rapid prospecting breakthrough.