Research Article

Variation in the Permeability of Intact and Fractured Rocks due to Transient Disturbances in Axial Stress or Pore Pressure

Table 2

Mineral composition of the Kushiro Cretaceous sandstone from XRD analysis.

QzPlKfAmHmMcChlSm

Very abundantVery abundantAbundantVery littleLittleLittleLittleMedium

Qz: quartz; Pl: plagioclases; Kf: potash feldspar; Am: amphibole; Hm: hematite; Mc: mica; Chl: chlorite; Sm: smectite.