摘要
微区分析是现代分析技术在地质研究应用中的一个重要领域,通过电子探针对矿物的微区分析,提供了矿床成因理论研究的新依据。本文以金银互化物的研究为例,讨论了在不同成因类型矿床中,金-银构成一个连续的类质同象系列,且变化是有规律可循,其微量元素的含量与该矿床成矿地质环境和相应的地球化学场有关,从而为找矿提供了新的地质信息。
Microbeam analysis is a new technology applied in geology Through microbeam analysis of minerals by means of electron microprobe, the author obtained new evidence on the origin of ores, which deepens the genetic theory on mineral deposits.Taking Au-Ag intergrowth compounds as an example, this paper has reached the following conclusions. In the Au-Ag compounds of different types of gold deposits, as sequentially replaces Au, making up a continuous isomorphous series. The content of Au and Ag in native gold forms a regular pattern. The development of native gold and that of electrum have something to do with different types of gold deposits respectively. Abundances of trace elements in Au-Ag minerals are controlled by geological settings and geochemical fields.The above study provides new geological information and a new method for the study and exploration of gold deposits.
出处
《岩石矿物学杂志》
CAS
CSCD
北大核心
1997年第4期374-379,共6页
Acta Petrologica et Mineralogica
关键词
微区分析
矿床成因类型
找矿信息
银矿物
金矿物
: microbeam analysis
AuAg intergrowth compounds
type of deposit
orehunting information