摘要
通过研究将辽西医巫闾山变质核杂岩构造要素划分为 :变质核、拆离断层、中间过渡层、盖层和医巫闾山背形 ,并简述了其地质特征。采用X射线衍射法对医巫闾山花岗岩及周围不同时代岩石的不同层次变形构造开展了岩石组构特征研究 ,确定了韧 脆性构造变形时的力学性质和主应力方位 ,对变质核杂岩的形成演化进行了运动学和动力学分析。
We divide structural elements of the metamorphic core complexes in the Yiwulushan into five parts,namely,the metamorphic core complexes, the fault, the middle passage bed, the cover rock, and the Yiwulushan antiform, with a description given concerning geological features of the metamorphic core complexes. Rock fabric studies were carried out by means of X-ray diffraction method on layered deformation structures of rocks of different ages in Yiwulushan Mountain area. Mechanical properties and major stress orientations in the process of ductifle-brittle deformation were determined. A kinetic and dynamic analysis was also made on the formation and evolution of the deformation structures in the metamorphic core complexe of the Yiwulushan Mountain.
出处
《地球学报》
EI
CAS
CSCD
北大核心
2003年第3期225-230,共6页
Acta Geoscientica Sinica
基金
国土资源部定向基金项目"辽宁阜新地宫 建设金异常区控矿构造研究"(编号 :98- 0 4)
国土资源部科技司项目 (编号 :992 0 49)
国土资源部地质力学开放实验室基金项目 (编号 :dlkf 980 8)资助。
