摘要
本实验在80℃水浴中和常压条件下,用0.1mol/L草酸及其中性钠盐溶液分别与石英和正长石颗粒共热240h。石英和正长石都发生不同程度的溶解。实验后的岩石颗粒,重量明显减少。溶液中Si,Al等主要造岩元素含量增加。对实验后的颗粒进行电子扫描显微镜观察,表面形貌有了较大变化,表明溶蚀不仅对次生孔隙绝对加大,而且对改变孔洞的流通喉道性质亦有贡献。
Under the condition of 80℃ constant temperature and normal pressure, quartz, orthoclase grains are co-heated with 0. 1 molar oxalic acid. 0. 1 molar sodium oxatate aqueous solution respectively. The results revealed that the grains were dissolved in different extents. After experiment, the weights of the grains decreased and the contents of several main mineral-forming elements in solution.such as Si.Al and so on,increased apparently . Observing the corrosed grains with scanning electron microscope (SEM) ,it can be seen that the surface shape has been changed greatly. This suggested that chemical corrosion not only enlarged the secondary pores in grains but changed the property of throats.
出处
《矿物岩石》
CAS
CSCD
1993年第1期103-107,共5页
Mineralogy and Petrology
基金
"八.五"石油天然气总公司重点攻关科研项目
关键词
硅酸盐矿物
二元羧酸
化学
溶蚀
framework silicate mineral
diarboxyli acid
chemical corrosion
secondavy pore
