摘要
尝试了一种从沉积岩中分离提纯自生粘土矿物的方法———反复冷冻 -解冻法。其改进之处在于利用渗透于岩石样品中的水 ,在冷冻的情况下体积膨胀 ,而使岩石颗粒散开。用改进的岩样碎样法分离出的粘土矿物 ,经X射线衍射分析鉴定证实 ,在 <1 μm粒级时 ,粘土组分中不含有碎屑的钾长石 。
A new method with repetitive freezing thawing process was developed to separate authigenic clay minerals from sedimentary rocks. The aim of this process was to disaggregate rock samples using the volume expansion of water that impregnates into the samples. The results from X ray diffraction analysis show that in comparison to the conventional method there is no K feldspar pieces in the clay minerals (with clay mineral size <1?μm) separated from sedimentary rocks by the new method.
出处
《岩矿测试》
CAS
CSCD
北大核心
2001年第3期214-216,共3页
Rock and Mineral Analysis
基金
中国石油天然气集团公司油气地球化学重点实验室资助项目 (2 0 0 0年度 )
