Transactions . eeding with the shaft, at about thirty feet depth, the vein,composed of quartz, with more or less slate highly impregnated withsulphides, was found to be four feet wide. At this time the shaft isabout 100 feet deep. Drifts have been run 62 feet southeast from the75 feet level, and 30 feet northwest from the 85 feet level. Sectionsshowing the formation of the vein, and to some extent the nature ofthe ore, are given in Figures 2 to 9 inclusive. About 600 tonsof ore are on the surface ready for concentration. The ore is essen-tially silver, sulphides and native, in quartz and slaty
Transactions . eeding with the shaft, at about thirty feet depth, the vein,composed of quartz, with more or less slate highly impregnated withsulphides, was found to be four feet wide. At this time the shaft isabout 100 feet deep. Drifts have been run 62 feet southeast from the75 feet level, and 30 feet northwest from the 85 feet level. Sectionsshowing the formation of the vein, and to some extent the nature ofthe ore, are given in Figures 2 to 9 inclusive. About 600 tonsof ore are on the surface ready for concentration. The ore is essen-tially silver, sulphides and native, in quartz and slaty gangues, withslight amounts of iron, zinc, etc., as sulphides, and also galena. AT SULLIVAN, MAINE. 351 Of the silver mineralf;, stromeyerite is most plentiful, ste|)liaiiitenext, argentite (silver glance), common, native silver in flukes veryplenty, threads frequent, lun)ps occasional. Figures 2 to 5. Sections of Vein, Sullivan Mine, 85 ft. River Drift. Scale, 6 feet to an inch. Views looking S. 36 Shaft. Note. All these varieties carry silver,but the proper ores are Nos. 1 to 6. in-cluded. No. slat;/ quartzite,often very rich in Argentite and/lake silver
Size: 1774px × 1408px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
