摘要
通过化学分析、X-射线衍射、红外光谱、扫描电镜和电子探针等方法,研究了云阳粉石英矿的成分和结构。根据氧同位素、包裹体测温以及周围岩石特征,讨论了微结晶石英岩的硅质来源和成因。认为云阳粉石英矿具有热水成因的特点,热水来源于地下热水,硅质来源于热水对含硅地层中含硅矿物的溶浸与萃取,形成富含硅的热水,交代碳酸盐岩形成微结晶石英岩。地形地貌、地质环境和矿石结构等条件是影响微结晶石英岩风化形成粉石英矿的主要因素。
This paper discusses the formation of the powder quartzite. Through chemical analysis, X-ray diffraction, infrared spectroscopy, scanning electron microscopy and electron microprobe analysis etc. it studies the composition and structure of the powder quartzite. According to characteristics of oxygen isotope, the surrounding inclusions temperature of the powder quartzite, it discusses the source and genesis of the powder quartzite. It assumes that the powder quartzite has characteristics of hot water genesis, which is sourced from ground water, while silicon comes from the water leaching and extraction for siliceous minerals in siliceous stratum. Furthermore, the form of hot water of rich silicon shows formation of the microcrystallization quartzite by the carbonate rocks. Topography, geology environmental and ore structure and other conditions are main factors weathering in affecting the powder quartzite.
出处
《地质科技情报》
CAS
CSCD
北大核心
2007年第5期45-48,共4页
Geological Science and Technology Information
基金
东华理工大学核资源与环境教育部重点实验室开放基金项目(060615)
关键词
粉石英矿
地质特征
成因分析
the powder quartzite
geological character
formation genesis
