Thin Section Analysis of Rock and its Application in Rock Engineering (Case Study: Kuhsangi Granitoid of Mashhad)

Authors

Department of Geology, Ferdowsi University of Mashhad

Abstract

     Samples of Kuh Sangi granitoid of Mashhad are investigated by microscope texture quantification using image analysis as well as point load strength test. The chemical, physical (shape estimation, grain size), petrographical (textural characteristics, modal analysis, classification), mineralogical and mechanical (strength, drillability, abrasiveness) properties of this granitoid which located in the southern part of Mashhad were investigated by a developed semi-automatic method. The petrography of the photomicrographs of the thin sections was analyzed with the aid of JMicroVision software. The results showed that the granitoid cinsist of the following mineralogy: orthoclase (20.55%), oligoclase (31.95%), β-quartz (29.71%) and biotite (17.79%). Due to petrographic variety and structural complexity, the rock masses in granitoids exhibit a wide range of engineering behavior, but from the result of this study it can concluded that microscope texture quantification and semi-automatic method is a applied approach for analyze mechanical properties and chemical analysis of granitoid rocks.
 

Keywords


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