Arizona silver belt., 1906-07-12
ALL EYES ON
 GLOBE DISTRICT
Continued from page D

the district. The bottom or the OlC Dominion is in this rock, as is the Arl- zona Commercial company's Black Hawk find. Indeed it is in this under lying eruptive rock that the great value of Globe copper mines should lie. These veins should be large and deep, while those in the limestone, or the less promising quartzite, do not go down. But even these upper ore lodes lead down to the wide veins in dia- base.
 As to the occurrence of ores at Globe: First, the largest continuous ore bodies lie contiguous to fault planes between diabase as foot wall and the sedi- mentary series of quartzite, overlain by limestone and underlain by diabase. These run as irregular bodies into the limestone. Second, ores occur m the shattered quartzite, impregnatlng It and replacing it in irregular masses. Third. ore occurs as distinct lode de- posits in the underlying diabase. These diverse classes of ore bodies, making m fact three series of lodes, are connected in way, for the lodes in diabase con tinue up into the replacements in ouartzites. These ore deposits may be said to be similar, in part, to the Butte veins. and in part to the Bisbee re- placements, and inpart dissimilar from either. They are neither distinct lodes, as at one place, nor replacements, as at the other, but partake of each and con meet the two systems of mlneralization. They grade from ores in limestone against limestone, down through lime stone against quartzite,. quartzite against quartzlte, quartzlte against diabase, to veins in diabase against diabase. The opinion of experts is that the great value of the camp will be found in the latter class of lodes, at depth, and that, when depth has been reached, the camp may be found in some manner similar to Butte with its great veins of ore in deep-lying igne- ous rocks. Already these diabase veins have been cut in several mines and have been found important.
 Mined Out Four Times
 One ore body in the old Dominion is POO feet long by 100 feet thick by 60 feet wide, and was mined when noth- ing less than 10 per cent copper was considered ore. everything nnder that being regarded as waste or country rock" There is one body of cupiferious iron ore in the limestone that has been followed to distance of 1000 feet and is of diameter of say loo feet. There is one mass of quartzite impregnated with copper, in larger part rich enough to make merchantable ore for 1,200 feet by 100 by POO. Practically all of this great ore body is good enough to go to the furnaces, either as ore or converter lining. Below the 10th level, $50 feet from surface, sulphides have been developed in veins up to $50 feet long and up to 40 feet wide, running from the 10th to the 18th level, and still persistent at that depth.
 Neighboring mines contain much chrysocolla, which occurs both as blueish-green brittle mineral very rich in copper, and as an almost black ore, from the presence of much manganese. A considerable percentage of this sill cate of copper, which is brought to the old Dominion shelter by teams, carries as high as 25 per cent copper, and the small properties of the district as at present operated are quite uniformly doing well. The Gibson, another mine of the district, produces beautiful peacock sulphide, and is now making a handsome profit, even after its ores are hauled twelve miles by team and smelt- ed at custom rates. Other mines, rare ly heard of outside Globe city, have millions of tons of shipping ore exposed. But the great future of the district probably lies with the Old Dominion, Arizona Commercial, and Globe ConsOl- dated companies.