An analysis of the porosities of fractured crystalline rocks

摘要: The to ta l porosity of a fractured medium is defined for purposes heat and mass transfer ca lcu lations in terms its c o n s t i tu en ts , flow diffusion res idual . Total de ­ term inations wide range crysta lline rocks show tha general volcanic have significantly larger v lu e up Ob2 2 than do metamorphic plutonic ro ck whose va lues are often le 0 .0 1 these same u sua lly .06 tim es the value their requiring 94 percent pore volume be located po Similar tud ies indicate that diffusional pa ths tortu­ osity 3 an iso tropic an­ isotropic Porosity m inera l-s ize d istribution data pores intergranular, maximum dimension size, sso ia ted inerals, concentrated around smaller mineral g ra Scanning electron microscope there two geom etries, microcracks equidim ensional p re with making bulk volume.