北山地区矽卡岩型铜矿元素表生活动性规律——以辉铜山铜矿为例

J4 ›› 2011, Vol. 41 ›› Issue (4): 1055-1066.

北山地区矽卡岩型铜矿元素表生活动性规律——以辉铜山铜矿为例

徐明钻^1,2|朱立新¹|马生明²|孙跃^2,3|唐世新²|路璐¹

1.中国地质科学院|北京100037；
2.中国地质科学院地球物理地球化学勘查研究所|河北廊坊065000；
3.成都理工大学核技术与自动化工程学院|成都610059

收稿日期:2010-12-07 出版日期:2011-07-26 发布日期:2011-07-26
通讯作者: 马生明（1963-），男，辽宁本溪人，教授级高级工程师，博士，主要从事矿产勘查地球化学方法技术研究 E-mail:MSMIGGE@163.com
作者简介:徐明钻(1983-)|男|浙江温州人|博士研究生|主要从事地球探测信息与技术方面研究|E-mail:hbxmz@tom.com
基金资助:
中国地质调查局项目(1212010813057)

Supergene Activity Discipline of Elements from Skarn Copper Mine in Beishan Region: Example from Huitongshan Copper Mine

XU Ming-zuan^1,2, ZHU Li-xin¹, MA Sheng-ming², SUN Yue^2,3, TANG Shi-xin², LU Lu¹

1.Chinese Academy of Geological Sciences, Beijing100037, China；
2.Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang065000,Hebei,China；
3.The College of Applied Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu610059, China

Received:2010-12-07 Online:2011-07-26 Published:2011-07-26

摘要/Abstract

摘要：

元素表生活动性规律研究是制定地球化学勘查方法技术、开展地球化学找矿工作的前提和基础。以北山地区辉铜山铜矿为例，系统研究了元素的表生活动特性。结果表明：在不同母岩形成的土壤中，Cu、Mo、Pb、Zn、Au、Ag、As、Bi、Ba、Sr等微量元素富集作用存在差异；与粗粒级相比较，细粒级中元素的富集作用更加明显；随着样点到矿体之间距离的增加，粗粒级土壤样品的Cu、Mo元素含量降低，而Ba、Sr元素含量略有升高。土壤中常量元素含量特征表明：粗粒级与细粒级的物质组成、化学成分存在明显差异，粗粒级更接近于母岩。微量元素的富集作用与黏土矿物含量呈正比，与主要造岩矿物含量呈反比。以上述试验结果为基础，采用－4～＋40目粗粒级为采样介质，有效圈出了辉铜山铜矿元素正异常和负异常，为该地区的找矿靶区优选提供了依据。

关键词: 北山地区, 矽卡岩型铜矿, 表生活动性, 富集系数, 靶区优选

Abstract:

The study on supergene activity discipline of elements is precedent and basic for establishing method and technology of geochemical exploration. The supergene activities of elements from parent rocks and soils in Huitongshan copper mine of the Beishan region are studied, which includes the variation of elements’ contents and hereditability between soils and rocks. It can be concluded that some trace elements as Cu, Mo, Pb, Zn, Au, Ag, As, Bi, Ba and Sr show distinctive enrichment characteristics in soils derived from different rocks. In the mine, these elements show more strongly supergene enrichment in fine size than in the coarse soil. With the increasing of the distance from the sample to the ore body, the contents of Cu, Mo reduced gently; while the contents of Ba, Sr rose slightly. Moreover, based on contents of major elements, it is proved that material composition and chemical component between coarse soil and the fine one is obviously different. Compared to the fine soil, the coarse has more similar element contents to its source rock. In addition, the analysis of mineral composition of soils indicates there is a positive correlation between elements’ supergene enrichment and the contents of clay minerals, however, a negative correlation between elements’ supergene enrichment and the contents of major rockforming minerals. According to conclusions above, positive and negative geochemical anomalies are determined with sampling media from -4 to +40 meshes, in Huitongshan copper ore district.

Key words: Beishan region, skarn copper mine, supergene activity, enrichment coefficient, prospecting target optimization

中图分类号:

P618.41

徐明钻, 朱立新, 马生明, 孙跃, 唐世新, 路璐. 北山地区矽卡岩型铜矿元素表生活动性规律——以辉铜山铜矿为例[J]. J4, 2011, 41(4): 1055-1066.

XU Ming-zuan, ZHU Li-xin, MA Sheng-ming, SUN Yue, TANG Shi-xin, LU Lu. Supergene Activity Discipline of Elements from Skarn Copper Mine in Beishan Region: Example from Huitongshan Copper Mine[J]. J4, 2011, 41(4): 1055-1066.

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