The quicksilver resources of California . the mine thereare two distinct zones of mineralization—the western zone{c), which connects directly with the first above-mentionedseries, and the eastern zone {</), which appears to be separatedfrom the second series {b) by a nearly barren zone, in which,however, not only does the vein persist, but the two zonesmentioned by Dr. Becker (Mon. XIII, U. S. G. S., page 320et seq.) make their appearance, there being two levels runon the 900-foot and looo-foot levels on their hanging-wallcontact. From the 700 to the 1700-foot level, there is a barrenzone b
The quicksilver resources of California . the mine thereare two distinct zones of mineralization—the western zone{c), which connects directly with the first above-mentionedseries, and the eastern zone {</), which appears to be separatedfrom the second series {b) by a nearly barren zone, in which,however, not only does the vein persist, but the two zonesmentioned by Dr. Becker (Mon. XIII, U. S. G. S., page 320et seq.) make their appearance, there being two levels runon the 900-foot and looo-foot levels on their hanging-wallcontact. From the 700 to the 1700-foot level, there is a barrenzone between these two mineralized zones {c and d). Onthe latter level a body of ore was worked between them,but judging from the map of the underground workings of thecompany, *below this level, no ore bodies were found in theintervening space. [See plan. Figs. 57 and 60, which give ageneral idea of this system of ore deposit.] In the 1400-foot level, Santa Isabel South, running towardthe Washington shaft, about 700 feet south of the Santa. dol ShaftjT Col/< SCAL£ W r££T O so /OO 200 300
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectminesandmineralresou
