Arizona silver belt., 1878-12-06
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xtH Hk8tE4 iu V0t tssdt As stAt@ Sh4 tttS aaove subject. which appeared some wecks ngs. the main portiOn of the Globe mineral belt is in q primary granite formation, whether it is locally known as granite, syeuise, gneiss. or by other names. IL IS also commonly believed that the under lying rock of the qaarIzite hslis ou Us soushessterly side sill prove so he granite. but judging from surface indications there are places where she upper formauon must be at least several hundred feet chick.
 If we take the whole mineralized gone northeasterly of Pinal creek into consideration 1t may be described as extending from about the town of Globe, on a lac 20 degrees east of north by compass, for twent, miles or to 3 point three or four miles be- yend Mcalillen. The width Of thls zone is from nine to twelve miles, and there is some probability that on isa northwesterly side diligens prospect tug will add several miles of pro- ductive couAtry. By careful exam iaation il will be found that the gen eral silver bearing zone has three distinct yen-systems or ore channels, each differing in some degree from the other.
 Ne may first notice the northeast erly and southwesserly veins, which extend nom Pinal creek eight miles uortheasterly to about on line with the Champion mne. The width of this portion of the belt, from a poinl southeast Of the Mccormick mine northwesterly to the Rescue lode ne al Ramboz camp, is about three and a half miles. The veins themselves vary considerably in their suike. Some have d course 20 degrees east of north from Pinal creek, but most of them range from 35 up to 65 de-  grecs easterIy. Thelr inclination Is equally various. Some are nearly perpendicular, others dip steeply to the southeast, but probably the great est number have q ncrthwesterly in- clination. varying from 50 to 70 de- grees. One or tso appear by the croppings to be from seventy to one hundred feet wide, several are from fifteen te twenty feet, but three to eight feet IS about the common size. Except on its southeasterlys sple, from the Mebfoet Go the Champion lodes, the small. rich spurs SD often seen in other portions Of the district seem to be shsent in .his vein system, whereas sor half d mile at n stretch one can gaik across good sized promising lodes from three to four hundred feet apart.
 For several miles northeasierIy from PIual creek the croppings at about the center Of this vein system are heavily charged with copper The Globe and the Cadmus mnes being examples of rhe class. By skill fuI prospecting It IS probable that silver ores will be found at different polnis along the copper out-erops, aud IS depth is attalhed the lower metal IS likely to decrease and the higher increase. Only m one or two instances has gold been found in thIs scr of velus h gong northeasterly we pass the copper croppings and come 10 promising quahty of silver ore When the quartzlte range IS reached, extending from the low hills on which the Isabella company's mlnes are located 10 Milner 6 Wat sons camp, we find free milling oros Of high grade. At the southeriy end of the quartzite range the veins are very irregular II thcir courses, some running enst and west and others norlheasterly and southwesterly. The lades. no doubt. have iher usuai regularity in the underlying syenige formation. but they appear through tue quartzise capPing much broken up, thereby makisg inialng work less certain of immediate results than could be desired. The work per formed in the syenite part of this northcastcrly bell has been too limited to afford conclusive proof thaT the veins are well defined and solilly walled but while the surface indsca