 | | Book | | MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Sine —_—< ¢ te om At _SHT 40...MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Richard Walker Holmes and Marrianna...Mines and minerals of the Great American Rift (Colorado-New Mexico). Bibliography: p. Includes index...index. 1. Mines and mineral resources—Colorado. 2. Mines and mineral resources—New Mexico. I. Kennedy, Marrianna...enter must be obtained to prevent trespass. Old mine workings are dangerous and entering underground |  | Klepper, Montis Ruhl, Ruppel, E.T., Freeman, V.L., Weeks, R.A. (1971) Geology and mineral deposits, east flank of the Elkhorn Mountains, Broadwater County, Montana. Professional Paper 665. US Geological Survey doi:10.3133/pp665 | Report (issue) | | East Flank of the Elkhorn Mountains, Broadwater County, Montana GEOLOGICAL SURVEY PROFESSIONAL PAPER...East Flank of the Elkhorn Mountains, Broadwater County, Montana By M. R. KLEPPER, E. T. RUPPEL, V. L...._ Kootenai Formation _______________________ _ Colorado Formation_-_-- __________________ _ Lower black...Description of deposits__________________________ Iron Age Gulch and Weasel Creek areas (Winston and Beaver... 2. Morrison and Swift Formations near Montana Silver Star mine____________________________ 52 3. Kootenai |  | | Report (issue) | | ORE DEPOSITS OF TILE LEADVILLE MINING DISTRICT, COLORADO BY S. F. EMMONS, J. D. IRVING, AND G. F. LOUGIILIN...High terrace gravel_ 15 Low terrace gravel_ _ 17 "Lake beds"_ 17 Character and distribu17 tion _ Deformation...fault _ 88 56 011ie Reed pipe_ Iron-Mikado group_ 88 57 Josie pipe _ 89 Iron fault _ 58 Eureka pipe_ Mikado..._94 61 Mike anticline _ Origin of the Iron-Mikado fault 61 Colorado Prince anticline _ group _ 95 61 Mosquito...syncline_ Faults southeast_ of _ Leadville 62 the_ Fryer Hill folds _ 62 district _ 95 Warping and drag along |  | | Report (issue) | | the. Leadville, Colorado, mining district. Prepared in cooperation with the Colorado State Geological...Geological Survey Board and the Colorado Metal Mining Fund UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON...High-level terraces,_____________________________ "Lake beds".__________________________________ Stratigraphy...____ Pikes Peak(?) granite- __________________ Silver Plume(?) granite__ _______ _________ Quartz-mica...Union syncline___ __________________________ Empire Hill syncline_ _-____-_-__--------_-__ Sheridan transverse |  | | Book (volume) | | ........................ 83 The History of Lord Hill, Black Mountain, Mount Apatite, and Nathaniel H......................................... 161 The Silver Boom ............................................................... 183 Reports from the Acton Silver Mines and Other Districts .......................Extracts from a Diary Concerning Mining at the Dunton Mine, Newry, Maine ....................................Duane L. Leavitt The Bennett Pegmatite, Oxford County, Maine . ..................................... |  | | Report (volume) | | Jay Gould mine and mill..._____________ 76 9. Quartz and lamellar calcite ore, Jay Gould mine.-._________...and vertical section of ore bodies in Jay Gould mine.... 84 11. 12. 13. 14. Quartz and lamellar calcite...district.__________________ 92 Ore from New Era mine.._-----_---_-_--__----_--_-_--__ 116 A, Crumpled...Grey son shale, Confederate Gulch; B, Tertiary "lake beds" on terrace north of Cove Creek.____ 124 18...veins.. 132 19. Plan of workings, Golden Messenger mine.________________ 148 20. A, Outcrop of quartz vein |  | | Report (issue) | | Geologist : AA Suppemen (eonteising Geological ‘Mae and Mine Plans) ee this Report)is issued under casual cover...Geologist A Supplement (containing Geological Map and Mine Plans) to this Report is issued under separate cover...over hich silver: lead Ore has been worked... . (11) Comparison between the Octane of Silver-lead Ore...THE SipERiITIC (a) Zeehan-Montana Mine (b) Zeehan-Western Mine Bet. ... ....... ... ... ... ... ...oe poe HAWES! Goo abe one Soe) (d) Victoria- Tena Mine Pet _(@) Nubeena Syndicate ... ... ction ee |  | | Journal (volume) | | Coi'lcs, 10 Cts. Spring Craters. The hiatoric Lake BoDneville, whioh was the Urgest of the lakee of...South is develsylvania. The General Custer is a gold mine developed oping in an industrial way very rapidly...to the noted mine operators and Drew, who capitalists, Messrs. Osborne and opened the mine, proved its...1S86, on account of the burning of the mil), the mine was in bonaDz...sight in the mine at that date, tbe owners decided, on account of the low price of silver then rnling |  | | Report (Issue volume) | | mines and mineral occurrences of the Rivertree silver field. Map 3 - Mines and mineral occurrences of.............................................. 159 MINE RECORDS ..........................................f l Jasper, chert, silcrete, quartz-rich rocks Iron-rich rocks Undifferentiated, mixture of types M...Plan ..... Titles map DME plan ....... Topo map County map Parish map ∗ Annual Report of the Department...with the page reference. Parish Aid card system. Mine Record of old unpublished system recording data |
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