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胶东英格庄金矿地质特征及找矿标志 被引量:5

The Geological Characteristics and Prospecting Criteria of Yinggezhuang Gold Deposit,Jiaodong
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摘要 英格庄金矿床位于胶东半岛东部的牟乳金矿带内石沟—巫山断裂的南端,为含金石英脉型金矿。荆山群、NNE向断裂构造及昆嵛山花岗岩岩体是金矿成矿的主要控制因素,含金矿体产于断裂破碎带中。在综合分析矿区资料的基础上,结合野外观察及光薄片鉴定,研究了矿石及蚀变围岩的特征。依据石英脉体特征及穿插关系、矿石组构和矿物生成顺序,将成矿过程划分为4个成矿阶段。围岩蚀变以矿脉为中心,大体呈带状分布,各带渐变过渡。进而总结了矿床地质特征和控矿因素,并归纳了主要找矿标志,指出在本矿区东侧有很好的找矿前景,为下一步研究提供了有利的地质证据。 Located on the southern margin of Shigou-Wushan fault in the Mouping-Rushan gold ore belt of eastern Shandong,Yinggezhuang gold deposit is one of the quartz vein type gold deposit.Gold ore-control factors are Jingshan group,NNE faults and Kunyushan granitic body.Gold ore bodies occur in cataclastic zone.On the basis of comprehensive analysis of the mining area,combined with field survey and appraisal of the polished section of the ore,studied characteristics of mineral and wall rock alteration.In the light of the features and the intercalating relationship of the quartz vein,ore fabric and the order of crystallization,ore-forming process can be divided into four stages.The wall rock alteration shows a zoning distribution pattcrn with alter gradually from vein to the border zone.The geological characteristics of gold deposit,ore control factors and the primary prospecting criteria are summarized in this paper,features of gold deposit,and pointed out that the east of the present area has a good prospecting future,which offers a favorable geological evidence for the next exploration of this area.
出处 《黄金科学技术》 2010年第5期99-105,112,共8页 Gold Science and Technology
基金 全国危机矿山接替资源项目(编号:200637084)资助
关键词 英格庄金矿 地质特征 找矿标志 胶东 Yinggezhuang gold deposit Geological characteristics Prospecting criteria Jiaodong
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