文章摘要
刘 孜.新疆哈密红石铜矿区300m中段原生晕地球化学特征及成矿预测[J].地质与勘探,2019,55(5):1132-1142
新疆哈密红石铜矿区300m中段原生晕地球化学特征及成矿预测
Geochemical features of primary haloes and metallogenic prediction in the 300m-middle-section of the Hongshi copper deposit, Hami, Xinjiang
投稿时间:2016-11-03  修订日期:2019-02-16
DOI:10.12134/j.dzykt.2019.05.002
中文关键词: 红石铜矿 原生晕 成矿预测 浅成低温热液脉型 哈密 新疆
英文关键词: Hongshi copper deposit, primary halo, metallogenic prediction, epithermal deposit, Hami
基金项目:新疆自治区高层次人才引进工程全职引进创新人才经费(新人社函〔2015〕648号)、国家重点研发计划“深地资源勘查开采”重点专项(2017YFC0601201-2)、中国地调局项目“新疆哈密卡拉塔格铜多金属矿整装勘查区矿产调查与找矿预测”(DD20190159-08)联合资助。
作者单位E-mail
刘 孜 北京矿产地质研究院北京 哈密红石矿业有限公司新疆哈密有色金属矿产地质调查中心南方地质调查所湖南长沙 384609259@qq.com 
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中文摘要:
      新疆哈密红石铜矿位于东天山大南湖-头苏泉岛弧带北段的卡拉塔格地区,为浅成低温热液脉型铜矿床。在矿床深部300m中段开展1:100原生晕地球化学剖面测量,选择Ag、Cu、Mo、Zn、As、Sb、Hg、Au、Pb、W、Ba、Bi、Sn等13种元素进行测试分析,查明与矿有关的地球化学特征,预测成矿有利地段。研究通过R型因子分析,识别Sb-Hg-As-Au前缘晕指示元素组合、Ag-Cu-Mo-Zn近矿晕指示元素组合、Ba-Bi尾晕指示元素组合,以及Se-Zn-Pb等元素共同代表岩浆期后中高温热液活动阶段,显示出该矿床具有多期、多阶段成矿的特征;依据C.B.格里戈良分带指数原理,建立(Sb×Hg)D/(Ba×Bi)D矿体定量预测指标,并结合矿化-蚀变特征,圈定1处成矿有利重点地段和1处成矿有利一般地段,分别为300m中段25线~19线成矿热液角砾岩筒的深部或周边,以及300m中段13线~7线1、6、9号脉矿(化)带的深部和周边;验证孔ZKY2101揭露了角砾岩筒深部的矿化情况,取得良好效果。
英文摘要:
      The Hongshi copper deposit, which is considered as an epithermal copper deposit, is hosted in the volcanic rocks of the Daliugou Group in the Kalatage area, eastern Tianshan, Hami, Xinjiang. This work has carried out an 1:100 rock geochemistry survey to the 300m-middle-section in the deep deposit, and chosen 13 elements as Au, Ag, As, Sb, Hg, Cu, Pb, Zn, W, Sn, Mo, Bi, and Ba for test analysis. The purpose was to clarify geochemical characteristics related to mineralization and predict favorable mineralization sections. Through R type factor analysis, front halo elements (Sb-Hg-As-Au), near-ore hole elements (Ag-Cu-Mo-Zn), and rear halo elements (Ba-Bi) were identified. The element association of Sn-Zn-Pb suggests the meso-hypothermal ore-forming process, implying that the deposit has the characteristics of multiple periods and multiple stages in mineralization. Using the method of Grigorian primary halo zonation, the indexes such as (Sb×Hg)D/(Ba×Bi)D are constructed as a criterion for evaluating the ore potential at depth or periphery. Combined with the characteristics of mineralized alteration, we have delineated a key place and a general favorable place of mineralization. The former lies in the deep or surrounding hydrothermal breccia pipe along No.25 to 19 exploration lines in the 300m-middle-section, and the latter is in the deep or surrounding of Nos.1, 6, and 9 mineralized zones along Nos.13 to 7 exploration lines in the 300m-middle-section. The borehole ZKY2101 validated the mineralization in the deep hydrothermal breccia pipe, indicating good effects attained by this work.
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