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J4 ›› 2011, Vol. 19 ›› Issue (4): 1-5.

• 矿产勘查 •    下一篇

山东三山岛金矿床地质特征及找矿预测

周国发1,吕古贤2,申玉科2,郭涛2,李威3   

  1. 1.广西地质勘查总院,广西 南宁530023;
    2.中国地质科学院地质力学研究所,北京100081;
    3.山东黄金矿业(莱州)有限公司三山岛金矿,山东 莱州261442
  • 收稿日期:2011-01-10 修回日期:2011-07-13 出版日期:2011-08-31 发布日期:2012-05-10
  • 作者简介:周国发(1980-),男,广西宜州人,博士,从事矿物学、岩石学及矿床学研究工作.sam99213@126.com
  • 基金资助:

    国家自然科学基金(编号: 40572063)、高等学校学科创新引智计划(编号:B07011)、山东黄金集团青岛有限公司地质找矿科研课题、地质过程与矿产资源国家重点实验室开放基金(编号:GPMR200626)联合资助.

Discussion on the Geological Characteristics and Prospecting Forecast of Sanshandao Gold Deposit,Shandong Province

ZHOU Guofa1,LV Guxian2,SHEN Yuke2,GUO Tao2,LI Wei3   

  1. 1.General Academy of Geological Survey of Guangxi,Nanning 530023,Guangxi,China;
    2.Institute of Geomechanics,CAGS,Beijing 100081,China;
    3.Sanshan Island Gold Ore Mine,Shandong Gold Group Co.,Ltd.,Laizhou 261442,Shandong,China
  • Received:2011-01-10 Revised:2011-07-13 Online:2011-08-31 Published:2012-05-10

摘要:

三山岛金矿床产于三山岛—仓上断裂带,属胶东地区典型的超大型焦家—玲珑式金矿。随着资源量的不断减少,有必要对该矿进行成矿远景分析和找矿预测,以便更好地指导深部外围地质找矿工作。在综合分析Ⅰ号矿体空间分布特征和矿石品位厚度变化趋势的基础上,结合区域成矿特点,认为Ⅰ号矿体深部延长>2 000 m,矿体在平面、剖面上均以膨胀狭缩、尖灭再现透镜体形式存在,矿化规模与蚀变岩带水平宽度呈正相关,主控矿断裂下盘存在具有工业价值的含金石英脉型矿体。此外,研究显示Ⅰ号矿体中部矿段(28~40 线)深部、北部矿段(40~48 线)深部及其以北区域存在具有工业价值的矿体,认为三山岛金矿具有相当可观的资源量,找矿前景较好,值得对其深部外围投入大量工作。

关键词: 找矿预测, 地质特征, 三山岛金矿, 山东省

Abstract:

Sanshandao gold deposit,which is produced in Sanshandao-Cangshang fault belt,belongs to large-typical Jiaojia-Linglong type gold mine.Because of the reduction of resource,it is necessary to analyze mineralization and prospecting forecast,which can be used to direct the exploration in the deepness or surrounding of Sanshandao gold deposit.Based on the comprehensive analysis of spatial distribution of Ⅰorebody,and the trends of ore grade and thickness,combined with regional metallogenic characteristics,we think that the depth extend of Ⅰorebody is more than 2 000 m,the main minable-ore distribution in the plan or profile is in pod typology,the direct correlation was significant between magnetization intensity and alteration zone,as well as the quartz vein type orebody can be found in subsidiary fracture.Meanwhile,we also show that much more bucked ore is remain in the middle position between 28th line to 40th line,the deepness of Ⅰ orebody north position between 40th to 48th line,and the surrounding of Ⅰ orebody north position.We conclude that much more resources may be found in deepness or surrounding of Sanshandao gold deposit,and much exploration work should be done.

Key words: Prospecting forecast, Geological characteristics, Sanshandao gold deposit, Shandong Province

中图分类号: 

  • P618.51

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