Block Caving and Other Mining Methods at the Bunker Hill Mines, Kellogg, IdahoStanford University, 1949 - 172 pages |
Common terms and phrases
9 level anticlinal argillite assay bleaching block caving plan Bluebird mineralization Bluebird type breccia breccia zones BUCKET ELEV Bunker Hill Bunker Hill type Cate fault centerline Cherry Raise chutes Coeur d'Alene district Coeur d'Alene River Company country rock Creek crusher deposits diabase feet finger raise fissures floor fold foot formation fractures galena gangue grade GUY CAVING Guy ore zone Guy Orebody haulage Hershey Hill and Sullivan hoist Kellogg tunnel lamprophyre March shoot mill Milo Gulch Mining Methods northeast veins open pit operation ORIENTATION OF VIEW Osburn fault outcrop parallel PLATE portal PUMP pyrite quartz quartzite Reed tunnel sampling SCALE scraper sericite shaft shears Shoshone County siderite Silver slice drifts slusher drifts sphalerite square-set STANLY ORE PASS stope STRIKE N 37°W Sub-level Caving Sullivan Mining syncline tetrahedrite timber TIMBER SLIDE tonnage tons Top Slicing transfer drift underground Utz level vertical waste West zinc