The ore deposits of Utah . uo ou. a o Hc« H o Q 04 o U WASATCH RANGE. 297 most noticeable, and the dull greenish-blackcolor and lath shape of hornblende is less so. Allare about equal in size, few exceeding one-eighthof an inch. QUARTZ DIORITK PORPHYRY. Diorite porphyry is the largest and mostwidely extended of the igneous formati( of it lies in the eastern and southern partsof the district, but a few small isolated bodiesoccur at the west and northeast. All the largeareas and nearly all the exposures appear tobe united on the surface into a single extremelyirregular body which, except
The ore deposits of Utah . uo ou. a o Hc« H o Q 04 o U WASATCH RANGE. 297 most noticeable, and the dull greenish-blackcolor and lath shape of hornblende is less so. Allare about equal in size, few exceeding one-eighthof an inch. QUARTZ DIORITK PORPHYRY. Diorite porphyry is the largest and mostwidely extended of the igneous formati( of it lies in the eastern and southern partsof the district, but a few small isolated bodiesoccur at the west and northeast. All the largeareas and nearly all the exposures appear tobe united on the surface into a single extremelyirregular body which, except for a narrow jmic-tion on the east, is roughly separated by thequartzite on Bald Mountain into two parallelmasses. The southern and major memberextends from the extreme head of EmpireCanyon in the region of the Daly-Judge, DalyWest, Quincy, and Little Bell mines eastwardand southeastward to its junction with thenorthern mass east of the Valeo mine, in Cotton-wood Canyon. It is well exposed by the broad,shallow amphitheater and s
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectminesandmineralresou
