... kinds of granite which is known as anisotropic rock. The measurement of elastic wave velocity and observation of thin section of this rock were performed to make clear orientation of inherent micro cracks. The two types of test specimen were prepared based on the orientation of micro cracks...

... ABSTRACT: A series of fatigue stresses were applied to granite, sandstone, and marble. Then microcracks in rocks due to fatigue stresses were investigated using Differential Strain Analysis and microscopic observation from Ouorescent-dyed thin sections. In granite, new microcracks including...

... contamin~tion of solidifyng magma with the setting rocks, to- ok place mainly in the solide state. The mineralogical and petrographical cha- racteristics of drawn samples were determined by both investigations on thin sections at the integrating meter table (modal analysis) on thr~ e mutually perpendicular...

... relation axis microfracture deformation band thin section hydraulic fracturing specimen intersection mase sandstone upstream oil & gas reservoir geomechanics sandstone sedimentary rock different stage ductile concentration grain boundary contour line hoshino stage begin 2-13...