In order to reveal any correlation between the preferred orientation of quartz and progressive intensity of strain, a suite of deformed leucogneiss collected within a ductile shear zone outcropping in Calabria (southern Italy) was investigated. Based on the microstructural approach and matrix-clast relationships, the method applied here may be useful for appraising the connection between deformation mechanisms of constituent minerals and bulk textural properties of naturally sheared rocks. Accordingly, quartz c-axis orientation patterns were determined by image-assisted analysis. Results revealed a correlation between finite strain and textural features: As strain increases, the matrix develops at the expense of the clast counterpart, which is instead progressively reduced in both size and amount.
|Titolo:||Microstructural Investigation of Naturally Deformed Leucogneiss
from an Alpine Shear Zone (Southern Calabria – Italy)|
Microstructural investigation of naturally deformed leucogneiss from an Alpine shear zone (southern Calabria, Italy)
|Data di pubblicazione:||2009|
|Appare nelle tipologie:||1.1 Articolo in rivista|