THE MENIFEE MINE

Is located south of Perris about 8 miles. The vein contains gold-bearing

quartz. The foot wall is a chloritic schist, back of which lies a

syenitic rock. The hanging wall is syenitic granite, the hornblende

having changed partly to chlorite. The vein is from 1 foot to 30 inches

in width, and strikes northeast and southwest, dipping west 80° to a

depth of 40 feet, where it flattens out to 65°. The quartz mills about

$15 per ton, and contains but a small percentage of sulphurets. There

are four shafts on the vein, varying from 35 to 60 feet in depth, the

main shaft having a double compartment, being 5 by 11 feet. They have a

five-stamp mill.

Old Mines of Southern California Desert-Mountain-Coastal Areas Including the Calico-Salton Sea Colorado River Districts and Southern Counties · 第 70 / 78 题