| 福建省紫金山铜金矿床原生晕地球化学特征及深部找矿前景 |
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| 引用本文： | 刘光永,戴茂昌,祁进平,张锦章.福建省紫金山铜金矿床原生晕地球化学特征及深部找矿前景[J].物探与化探,2014(3):434-440. |
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| 作者姓名： | 刘光永 戴茂昌 祁进平 张锦章 |
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| 作者单位： | 紫金矿业集团股份有限公司,福建上杭364200 |
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| 基金项目： | 国家科技支撑计划课题（2009BAB43804） |
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| 摘 要： | 通过系统采集紫金山铜金矿床4~11线共41个钻孔的岩矿样,绘制原生晕剖面图,建立垂向元素分带序列、矿体剥蚀程度准则,结合深部指示元素的特征,进行隐伏矿预测。该矿床金矿近矿晕为Au-Ag-Zn1,尾部晕为BiGa-Mo-Sn-Ti-Co-Ni-W1-V;铜矿前缘晕为Hg-Sb-As,近矿晕为Cu-Pb1-Zn2,尾部晕为Be-W2。矿体剥蚀程度评价表明,高硫型铜矿体往深部已尖灭。深部F-Mn-Pb2-Zn3的异常形态和元素组合符合典型斑岩矿床的外带特征,斑岩体延伸至矿床周边;深部的蚀变矿物组合、金属矿物组合、流体包裹体特征等均表明深部可能存在斑岩铜(钼)矿床。
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| 关 键 词： | 紫金山铜金矿床 原生晕结构 深部找矿前景 高硫型矿床 斑岩型矿床 |
Geochemical characteristics of primary halos and ore-search prospecting in the depth of the Zijinshan copper-gold deposit,Fujian province |
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| Liu Guangyong,Dai Maochang,Qi Jinping,Zhang Jinzhang.Geochemical characteristics of primary halos and ore-search prospecting in the depth of the Zijinshan copper-gold deposit,Fujian province[J].Geophysical and Geochemical Exploration,2014(3):434-440. |
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| Authors: | Liu Guangyong Dai Maochang Qi Jinping Zhang Jinzhang |
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| Institution: | ( Zijin Mining Group Co., Ltd. ,Shanghang 364200, China) |
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| Abstract: | Based on systematic collection of rock and ore samples from 41 drill holes along No. 4 and No.11 exploration lines in the Zi-jinshan copper-gold deposit of Fujian Province,the authors drew a contour map of primary halos,established vertical element zoning se-quence and orebody denudation guidelines and, in combination with characteristics of the indicator elements in the depth,made a pre-diction of concealed orebodies. For gold orebody, the near-halo is Au-Ag-Zn1 , and the rear halo is Bi-Ga-Mo-Sn-Ti-Co-Ni-W1-V, whereas for copper orebody, the front halo is Hg-Sb-As, the near halo is Cu-Pb1-Zn2 , and the rear halo is Be-W2. The evaluation of the denudation of the orebody shows that the high-sulfur copper orebody pinches out to the depth. The abnormal morphology and ele-mental composition of F-Mn-Pb2-Zn3 in the depth is consistent with the characteristics of a typical porphyry deposit, the porphyry body extends to the periphery of the deposit, and the deep alteration mineral assemblages, metal mineral assemblages, fluid inclusion char-acteristics show that there may exist a porphyry Cu （ Mo） deposit in the depth of the southwest part. |
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| Keywords: | Zijinshan copper-gold deposit structural characteristics of primary haloes ore-search prospect high sulfidation deposit porphyry deposit |
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