Clay, pumice, shale, and unfractured plutonic igneous rocks, metamorphic rocks, and crystalline sedimentary rocks (like rock salt) have low permeabilities.
(Clay, pumice, shale, and unfractured plutonic igneous rocks, metamorphic rocks, and crystalline sedimentary rocks (like rock salt; have; low permeabilities)
Clay, pumice, shale, and unfractured plutonic igneous rocks, metamorphic rocks, and crystalline sedimentary rocks (like rock salt
have
low permeabilities