摘要
在剪切带中相当大一部分的钾长石眼球体、云母鱼和花岗岩的透镜体 ,并非是动力变质过程中原岩的矿物或原岩本身的残留体 ,而是在剪切带内部引张区域的动力分异作用的产物。这些产物有三种尺度 :矿物尺度、矿物集合体尺度、岩体尺度。这三种尺度的产物具有形态、成分、产生部位和形成环境的相似性。在以上认识的基础上 ,该文对眼球体的拖尾现象、云母鱼及造山带的S型花岗岩体的成因 。
A large part of potash feldspar augen structure, mica fish structure and granite lenticle in shearing zone are the results of dynanamo metamorphism of the tension region inside shearing zone instead of the mineral of original rock emerge in dynamometamorphism process on the remains of the original rock. They have three measurements: mineral measurement mineral aggregate measurement and rock measurement. The three ones are similar in shapes, components, produced place and forming envirnoment. Based on the above point of view, a further atudy is given on the dragging phenomenon of augen and the cause of mica fish structure and S-shape granite in orogeny belt.
出处
《河南地质》
2000年第3期190-195,共6页
Henan Geology
关键词
剪切带
眼球体
透镜体
云母鱼
花岗岩体
shearing zone
augen structure
lenticle
mica fish structure
granite mass
measurement
