评价金地球化学异常的新方法

J4 ›› 2002, Vol. 10 ›› Issue (1): 27-32.

评价金地球化学异常的新方法

龚美菱

西北有色地质研究院,陕西　西安　710054

收稿日期:2001-10-08 修回日期:2001-12-14 出版日期:2002-02-28 发布日期:2011-12-13
作者简介:龚美菱(1930-),男,教授级高级工程师,主要从事相态分析方法及其在地质找矿中的应用研究.
基金资助:
国家“八五”重点攻关科研项目(85 - 902 - 07 - 01)

A NEW TECHNIQUE FOR EVALUATING GOLD ANOMALY

GONG Meiling

Northwest Nonferrous Geological Research Institute , Xi’an S hannxi 710054 , China

Received:2001-10-08 Revised:2001-12-14 Online:2002-02-28 Published:2011-12-13

摘要/Abstract

摘要：

评价金地球化学异常的新方法主要适用于热液型金矿床,其原理系基于测得Au与它的共生矿物如黄铁矿、毒砂、黄铜矿、方铅矿、闪锌矿等的相关密切程度以查明金是否呈集中状态存在;测定石英包裹Au 的含量以了解原始热液中Au 的浓度,以查明是否具有成矿的地质条件。基于这些勘查地球化学原理,拟订了评价Au 地球化学异常的新方法。在评价举例中介绍了应用这套评价程序在新疆找到了Au 品位高达200g/ t 的金矿体。使用新方法已在我国西北地区评价过30 个金化探异常,表明新方法具有准确率
高、效率高、低成本等特点。

关键词: 金矿化探, 金地球化学异常, 热液型

Abstract:

A new geochemical method for evaluating gold anomaly in hydrothermal type gold deposit was presented. The principles of the method lies in that ,determing the par agenesis relationship between Au and the heavy minerals as pyrite , arsenopyrite , chalcopyrite , limonite etc to understand whether the gold exist s in concent ration state or not ; determing the content s of Au enclosed in separated quartz to identify roughly whether Au is enriched in original , hydrothermal liquid and to understand the geological condition of Au oreformining.Based on those principles of geochemical explorations , a new method of Au anomaly evaluations were carried out . And an application example was introduced which showed that using this method a gold deposit containing 200g/ t of Au was found in Xinjiang Uygur Autonomous Region and thirty Au anomalies from Northwest China have been evaluated , indicating this method is accurate , efficient and low cost .

Key words: Au deposit geochemical exploration, Au geochemical anomaly, hydrothermal type

中图分类号:

P632

龚美菱. 评价金地球化学异常的新方法[J]. J4, 2002, 10(1): 27-32.

GONG Mei-Ling. A NEW TECHNIQUE FOR EVALUATING GOLD ANOMALY[J]. J4, 2002, 10(1): 27-32.

参考文献

[1] 刘英俊,曹励明,李兆麟,等.元素地球化学
[M].北京:科学出版社,1984.

[2] 刘英俊,邱德同.勘查地球化学
[M].北京:科学出版社,1987.

[3] 张敏,龚美菱.地质样品中痕量金的物相分析
[J].冶金分析,1991 ,11 (3) :1-4.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed