焦家金矿深部原生晕地球化学特征
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摘要
焦家金矿是胶西北地区典型的金矿床,该区成矿具有多期、多阶段叠加共同作用的特点。通过对典型剖面上钻孔不同部位岩性样品的微量元素测试分析,运用数学地质分析方法,对焦家金矿床深部地球化学特征进行了研究,得出深部成矿微量元素特征组合为Au,Ag,Cu,Pb,Zn,As,Sb,Bi,Hg,W,Mo,Sn;原生晕轴向分带序列为:Hg,As,Sb(矿头晕)→Au,Ag,Cu,Pb,Zn,Bi,Sn(矿中晕)→W,Mo(矿尾晕)。由此建立了地球化学原生晕异常模型,并总结了地球化学找矿标志,为深部找矿提供依据。
Jiaojia gold deposit is a typical gold deposit in northwestern Jiaodong peninsula. The mineralization of gold deposits has the characteristics of multi-stage and mult-stage superposition. By using mathematic geology method, geochemical data of the trace elements have been analyzed for the samples with different depths from drilling program. Au,Ag,Cu,Pb,Zn,As,Sb,Bi,Hg,W,Mo and Sn are dizziness indicator element. The axial zonality sequences of primary halo can be classified as follows: Hg,As,Sb(head halo) →Au,Ag,Cu,Pb,Zn,Bi,Sn(middle halo)→W,Mo(tail halo). At the same time, geochemical prospecting model of the deposit and corresponding exploration indicators have been established. It will provide geochemical evidence for deep prospecting.
Jiaojia gold deposit is a typical gold deposit in northwestern Jiaodong peninsula. The mineralization of gold deposits has the characteristics of multi-stage and mult-stage superposition. By using mathematic geology method, geochemical data of the trace elements have been analyzed for the samples with different depths from drilling program. Au,Ag,Cu,Pb,Zn,As,Sb,Bi,Hg,W,Mo and Sn are dizziness indicator element. The axial zonality sequences of primary halo can be classified as follows: Hg,As,Sb(head halo) →Au,Ag,Cu,Pb,Zn,Bi,Sn(middle halo)→W,Mo(tail halo). At the same time, geochemical prospecting model of the deposit and corresponding exploration indicators have been established. It will provide geochemical evidence for deep prospecting.
引文
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[2] 鲍中义,钮涛,高书剑,等.焦家金矿床深部矿体地质特征及深部成矿预测[J].山东国土资源,2010,26(1):6-10.
[3] 高书剑,孙瑞刚.焦家金矿床浅深部矿体地质特征对比[J].甘肃科技,2010,26(16):54-57.
[4] 宋明春,宋英昕,崔书学,等.胶东焦家特大型金矿床深、浅部矿体特征对比[J].矿床地质,2011,30(5):923-932.
[5] 崔书学,袁文花,杨之利.莱州寺庄金矿床深部地质特征[J].西北地质,2008,41(4):82-92.
[6] 王炳成.玲珑花岗岩的岩石化学与地球化学特征[J].山东地质,1986,2(1):54-73.
[7] 鄢明才,迟清华,顾铁新,等.中国东部地壳元素丰度与岩石平均化学组成研究[J].物探与化探,1997(6):451-459.
[8] 丛源,李雪梅,董庆吉.多元统计分析在矿床指示元素组合特征研究中的应用——以山东黄埠岭金矿为例[J].世界地质,2007,26(4):435-440.
[9] 杨永春,刘家军,王学银,等.甘肃滴水山金矿床原生晕特征及深部成矿预测[J].黄金科学技术,2015,23(1):17-23.
[10] 戚长谋.元素地球化学分类探讨[J].长春科技大学学报,1997,21(4):361-365.
[11] 李惠,张国义,禹斌,等.金矿区深部盲矿预测的构造叠加晕模型及找矿效果[M].北京:地质出版社,2006:16-48.
[12] 李惠,禹斌,李德亮,等.构造叠加晕找盲矿法及研究方法[J].地质与勘探,2013,(49)1:154-161.
[13] 李惠,李德亮,禹斌,等.辽宁凤城白云金矿床深部盲矿预测的构造叠加晕模型及预测效果[J].地质找矿论丛,2010,25(2):153-156.
[14] 李惠,禹斌,李德亮,等.化探深部预测新方法综述[J].矿产勘查,2010,1(2):156-160.
[15] 李惠.热液金矿床原生叠加晕的理想模式[J].地质与勘探,1993,29(4):46-51.
[16] 李惠,张文华,常凤池.大型、特大型金矿盲矿预测的原生叠加晕理想模型[J].地质找矿论丛,1999,14(3):25-33.