| Mylonitization of Diorites in Jiangshao Fracture Belt,Zheijiang Province,China |
| |
| 作者姓名： | 朱云鹤 周新民 |
| |
| 作者单位： | [1]NanjingInstituteofGeologyandMineralResources,Nanjing,210018 [2]DepartmentofEarthSciences,NanjingUniversi |
| |
| 摘 要： | Cahracteristics of progressive ductile deformation and remnant igneous fabrics indicate that the foliated diorites in the middle sector of the Jiangshao fracture belt in Zhuji County,Zhejiang,are mylonites deformed from diorites,The mylonitization occurres about 353-370Ma ago under a condition of 425-475℃and 3.8-4.6kb.herelation between the deformation and metamorphism was discussed based on petrographic evidence and mineral chemistry and assemblage,It is suggested that the deformation was responsible for the development of low-grade greenschist-facies metamorphism of mylonitic diorites by introducing fluid phase to accelerate metamorphic reaction and diffusion.
|
| 关 键 词： | 糜棱岩 闪长岩 浙江 变质作用 |
Mylonitization of diorites in Jiangshao fracture belt,Zhejiang Province,China |
| |
| Zhu Yunhe,Zhou Xinmin.Mylonitization of Diorites in Jiangshao Fracture Belt,Zheijiang Province,China[J].Chinese Journal of Geochemistry,1994,13(4):371-382. |
| |
| Authors: | Zhu Yunhe Zhou Xinmin |
| |
| Institution: | (1) Nanjing Institute of Geology and Mineral Resources, 210018 Nanjing;(2) Department of Earth Sciences, Nanjing University, 210008 Nanjing |
| |
| Abstract: | Characteristics of progressive ductile deformation and remnant igneous fabrics indicate that the foliated diorites in the
middle sector of the Jiangshao fracture belt in Zhuji County, Zhejiang, are mylonites deformed from diorites. The mylonitization
occurred about 353–370 Ma ago under a condition of 425–475°C and 3.8–4.6 kb. The relation between the deformation and metamorphism
was discussed based on petrographic evidence and mineral chemistry and assemblage. It is suggested that the deformation was
responsible for the development of low-grade greenschist-facies metamorphism of mylonitic diorites by introducing fluid phase
to accelerate metamorphic reaction and diflusion. |
| |
| Keywords: | mylonitizarion diorite Jiangshao fracture belt Zhejiang |
| 本文献已被 维普 SpringerLink 等数据库收录！ |
|
