摘要
仕阳—百丈地区侵入岩岩浆演化岩石类型趋势一般由二长花岗岩→钾长花岗岩→碱长花岗岩方向演化。岩浆分异程度从二长花岗岩→钾长花岗岩→碱长花岗岩基本呈现递增规律,呈现铁、镁降低,而钾钠增加的趋势。稀土总量(∑REE)在演化趋势方向上呈增加趋势。随着岩浆演化分异程度的增高(分异指数DI值的增大),δEu值变化呈减小趋势。
In the Shiyang-Baizhang area, intrusive rock type magmatic evolution generally shows a trend from monzonitic granite to k-feldspar to alkali feldspar granite. Magmatic differentiation degree is increasing, showing iron and magnesium reduced, but sodium and potassium increased. TREO（ΣREE） in the direction of evolutionary trends showed an increasing trend, with the degree of differentiation of the magmatic evolution increased（with the differentiation index DI increased）, δEu value shows the decreasing trend.
出处
《吉林地质》
2015年第1期30-35,共6页
Jilin Geology
关键词
侵入岩
演化
岩石化学
仕阳—百丈
浙江
intrusive rocks
evolution
lithochemistry
Shiyang-Baizhang
Zhejiang Province
