Mechanical behaviors of mylonitic granite and granitic …
2024年7月1日 · Some researchers have proposed classification methods for the prominent microstructure characteristics of mylonite. Based on the microscopic characteristic of matrix proportion, Sibson (1977) divided mylonite into three categories: protomylonite (matrix proportion 10%–50%), mylonite (matrix proportion 50%–90%), and ultramylonite (matrix ...
Evolution of microstructure and melt topology in partially molten ...
2008年10月24日 · Three types of microstructures corresponding to evolutionary stages of deformed granite were recognized: (1) the metagranite marked by viscous flow of plagioclase around strong alkali feldspar and quartz, (2) quartz augen orthogneiss characterized by development of banded mylonitic structure of recrystallized plagioclase and K-feldspar ...
Microstructures, Fabrics, and Seismic Properties of Mylonitic ...
2024年6月25日 · We present microstructures, petrofabrics, and calculate seismic properties of deformed amphibolite with the microstructures ranging from mylonite to ultramylonite.
A Granitic Mylonite Is Strongest Parallel to Lineation in a High ...
2023年12月22日 · We performed a series of triaxial compression experiments on granitic mylonite. The results show that sample deformation at 300 MPa, 800°C–1,000°C, and ∼2.5 × 10 −6 –10 −4 s −1 is dominated by dislocation creep, accompanied by brittle deformation at ≤∼850°C for compression parallel to lineation and likely diffusion creep ...
Strength variation and deformational behavior in anisotropic granitic ...
2017年3月1日 · Here, we investigate the mechanical behavior and microstructures of the samples under these different conditions to assess the effects of pre-existing fabric properties on the rheologies of the granitic mylonite samples.
Formation process and deformation microstructures of mylonites ...
Formation process and deformation microstructures of mylonites developed in the Shirakamidake granitic pluton. *Toru Sakai, Osamu Nishikawa, Yukio Hujimoto. Author information. …
Strength variation and deformational behavior in anisotropic granitic ...
2017年3月1日 · In this study, we deformed well-foliated natural granitic mylonite samples under high-temperature and -pressure conditions in a molten-salt Griggs-type apparatus, applying compression at angles of 30°, 45°, and 60° to the foliation plane, respectively.
Evolution of microstructure and melt topology in partially molten ...
(PDF) Evolution of microstructure and melt topology in partially molten granitic mylonite: Implications for rheology of felsic middle crust | Karel Schulmann, Pavla Štípská, Stanislav Ulrich, and Ondrej Lexa - Academia.edu. Download Free PDF.
ural granitic mylonite samples under high-temperature and-pressure conditions in a molten-salt Griggs-type apparatus, applying compression at angles of 30 ,45, and 60 to the foliation plane, respectively. Here, we investigate the mechanical behavior and microstructures of the samples under these different condi-
Relationship between aggregate microstructure and mortar …
2007年12月4日 · An investigation of the microstructure of granitic rocks from the Santa Rosa mylonite zone in southern California with transmission electron microscopy and neutron diffraction revealed that, as these rocks become progressively deformed from granite to mylonite and phyllonite, accompanied by grain size reduction, the dislocation density in ...
- 某些结果已被删除