Materials:
Solid glass beads were purchased from Fisher Scientific. Berea Sandstone and Indiana Limestone (IL) were purchased from Kocurek Industries Inc. Madison Limestone (ML) was collected from the Rock Springs Uplift (Wyoming) experimental well [18].
Fracturing Procedure :
To analyze fractured rock, select carbonate samples were subject to a fracturing procedure in our laboratory. The process was carried out with a bench vise. The sample was placed horizontally, and the stress was gradually increased until the first crack was observed. Epoxy was immediately applied on the cracks exterior in order to avoid sample disaggregation (crumbling).