摘要
峨眉山玄武岩在四川、云南、贵州分布区形成广泛而稳定的玄武岩风化壳。研究发现在贵州西部的玄武岩风化壳中普遍存在稀土矿(化)点,结合野外踏勘和地球化学找矿等方法,发现玄武岩风化壳中稀土元素富集受到内生条件和外生条件的双重控制。因此,在玄武岩风化壳中寻找稀土矿,要从地形地貌着手,重点在玄武岩出露地表的第四纪夷平面所形成的山岗、垄岗上的风化壳中找矿。
The E＇meishan basalt weathering crust is widely distributed over Sichuan, Yunnan and Guizhou. Study indicates that there are many REE occurrences in the basalt weathering crust in west Guizhou which are controlled by endogenetic and exogenetic geological process. Therefore, most of the REE ores occur on the Quaternary planation surface.
出处
《四川地质学报》
2011年第4期420-423,共4页
Acta Geologica Sichuan
关键词
峨眉山玄武岩
稀土矿
矿矿机理
贵州西部
metallogenic mechanism
REE ore
weathering crust
E＇meishan basalt
Guizhou Province
