Pollenanalytical study of the Tertiary coal seams in the Kushiro coal field, Hokkaido
نویسندگان
چکیده
منابع مشابه
Determination of Coal Seams Depth of Erosion with Respect to the Remnants of a Key Bed in Kerman Coal Field, Iran
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15 صفحه اولPermeability evolution during progressive deformation of intact coal and implications for instability in underground coal seams
We report measurements of deformation, strength and permeability evolution during triaxial compression of initially intact coals. Permeability is continuously measured by the constant pressure differential method, together with axial and volumetric strains for both water (H2O) and strongly adsorbing carbon dioxide (CO2) gas. Strength and Young’s modulus increase with increasing confining stress...
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ژورنال
عنوان ژورنال: The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists
سال: 1952
ISSN: 0021-4825,1883-0765
DOI: 10.2465/ganko1941.36.85