 | 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....of the geology, mineral deposits, and mines in an area east of the Boulder batholith l i. J .1 ' \..._ Kootenai Formation _______________________ _ Colorado Formation_-_-- __________________ _ Lower black...area________________________________ Radersburg area (Cedar Plains) _ _ _ _ _ _ _ _ _ _ _ _ _ _ Quartzite |
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| imply endorsement by the U.S. Government. Denver, Colorado 2Menlo Park, California 1996 NONTECHNICAL EXECUTIVE... * Gold was discovered in the region in Powell County in 1852. Mining began in the 1860's, and since...since then the Forest has produced gold, silver, copper, lead, zinc, molybdenum, and phosphate minerals. *...SUMMARY CHAPTER A. The Helena National Forest study area by R.G. Tysdal and Steve Ludington Introduction...Geologic setting of the Helena National Forest study area by R.G. Tysdal Geologic mapping Regional geologic |
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| 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 |
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| ______.._.....________-__-__-.___-_-----------_-__ Area and field work.__-.-.________-___-__-___.-_----..._______________________________________________ Stemple area.______--_-_-_--____-_--__.______-__-_-______--._...Helena.____________-_--____-_-_-_-_-_-_---_-.__ Area and accessibility_________-_________-___-___---_-----___...311 ILLUSTRATIONS Page PLATE 1. 2. 3. 4. 5. Area of the Boulder batholith and traces of overthrust...Jay Gould mine and mill..._____________ 76 9. Quartz and lamellar calcite ore, Jay Gould mine.-._________ |
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| Geology and Ore Deposits of the Front Range Colorado By T. S. LO\'ERING and E. N. GODDARD GEOLOGICAL...in cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund ~ oopr..._________________ _ Pikes Peak granite _____________________ _ Silver Plume granite ___________________ _ Pegmatites...Pre-Cambrian deposits _________________________ _ Mine descriptions __________________________ _ 39 39...disseminations_ Cotopaxi mine _____________________ _ Copper deposits in Jefferson County __ _ F. M.D. property |
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| Amcnnpijiite: In the Emery Mining district (Powell County) the mineral is found in wellformed crystals in...Mining district near Jardine (Park County). At the Kennebec mine in the Crevasse Mountain district (see...(see above) small crystals of arsenopyrite are disseminated in schist in the ore. It has also been noted...encountered in the Jardine mine (see above). Noteworthy is the No. 1 vein of the mine on Mineral Hill. It is...the Crevasse Mountain district near Jardine (Park County) on the Vindicator claim, one-half inch tabular |
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| GOLD AND SILVER. THE AURIFEROUS GRAVELS OF THE TRINITY RIVER BASIN, CALIFORNIA. By J. S. DILLER. INTRODUCTION...ever since. Besides the La Grange mine, the largest hydraulic mine now in active operation, it contains...mines, particularly in the northern portion of the county. Large bodies of gravel of lower grade yet remain... Murphy, of the Union Hill mine; Mr. Pierre Bouery, of the La Grange mine; Mr. W. D. Ayers, of Poker...Globe mine; but more particularly to Mr. H. L. Lowden, formerly county surveyor of Trinity County, who |
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| 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...____ Pikes Peak(?) granite- __________________ Silver Plume(?) granite__ _______ _________ Quartz-mica...shear zones on Finnback Knob. Faults near Hilltop mine _________________ Faults of the southern section...____ _______ Bowden and related faults in the Ibex mine. Classes and ages of faults. ___________________ |
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| cut, Drake. WARWICK-TWEED HEADS 1:250 000 SHEET AREA (New South Wales Portion) VOLUME 2 MINERAL OCCURRENCE...the Rivertree silver field. Map 3 - Mines and mineral occurrences of the Boonoo Boonoo area Map 4 - Geology...the Boorook area. Map 5 - Geology, mines and mineral occurrences of the Wilsons Downfall area Map 6 - Geology...of the Mount Carrington area. Map 7 – Geology and workings of the Red Rock area Disclaimer :- This report.............................................. 159 MINE RECORDS ....................................... |
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| characterised by sulfophile concentrations of gold, silver, antimony, molybdenum, bismuth, tin, copper, lead...Fig. I. Locality Region map - New England from mine dumps and should not be regarded as being representative...CuAg Closed BEDS orgilliteSllstone,grey'~de 17 Silver Spur " '. 18 Pikedale 5O Jump-up-Creek Ag Pb do...do ~^vr Ardesit~c,decif~,rhyOlltlC 119 Silver Queen 5t Three docks Ag Cu do ~C&,~',~u~/~be pyroc~stes...[ 2 I McOowans WCuPbZn do 55 Rivertree Proo Co. Silver Ag Pb do 54 F~verlTeeProp Co N NEW ENGLAND Posf-kinerr~e |
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| ...................................... 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 . ........................................permanent photographic exhibits in the northeastern USA. The Shaubs have been active in ornithological research |
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| ORE DEPOSITS OF TILE LEADVILLE MINING DISTRICT, COLORADO BY S. F. EMMONS, J. D. IRVING, AND G. F. LOUGIILIN...anticline _ Origin of the Iron-Mikado fault 61 Colorado Prince anticline _ group _ 95 61 Mosquito Gulch...Gray porphyry _ Area west of Pendery fault group_ 97 63 Major faults and fissures_ 63 Area between Pendery...faults _ 102 Area between Mikado and Iron faults__ _ _ Previous descriptions_ 65 •66 Area bounded by Iron...103 66 Tucson mine _ Area between Iron and Adelaide faults_ _ _ Yak_ tunnel and its Area between Mike |
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| ...................... 1. Rocks from Aroostook County..... ^..................'........... 2. Miscellaneous...1. Elliott County dike............................................... 2. Crittenden County dike............................ Schist from the Aragon iron mine............................... ill 17 .18 18 19................ 86 87 90 90 92 93 93 94 95 95 Colorado.................................................rocks........................................... 3. Silver Cliff and Rosita.............................. |
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| Carbonate-Hosted Sulfide Deposits of the Central Colorado Mineral Belt DAVID W . BEATY, GARY P . LANDIS...are paralle l to host-rock bedding. Black Cloud mine, Leadville district. Sherman-type ore (bottom) in...cemented or veined with ferroan dolomite. rv1oose mine, North Alma district. Photographs b)' \Villiarn...Carbonate-hosted sulfide deposits of the central Colorado mine ral belt: Introduction, general discussion,...Regional geologic and tectonic setting of the central Colorado mineral belt . . . . Alan R. Wallace Paleozoic |
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| ...................... 1. Eocks from Aroostook County I............................. 19 19 2. Litchfieldite...56 1. Elliott County dike........................................ 56 2. Crittenden County dike...................... Fourth. Schist from the Aragon iron mine ................. 5 64 66 70 70 71 72 72 ( 6.................................. 134 135 137 Colorado ......................... ^.....................district. ......................................... 3. Silver Cliff and Eosita.............................. |
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| crystalline rocks Maine 1. Rocks from Aroostook County 2. Litchtieldite and associated minerals New lIampshire...Carolina (ieorgia Kentucky 1. Elliott County (like 2. Crittenden County dike Tennessee Missouri Arkansas Texas...Quinnesec Falls Fourth. Schist from the Aragon iron mine 4. Penokee-c iogebic region 5. Rocks of Pigeon Point...Bitterroot Range 12. Marysville district Idaho Colorado 1. Denver Basin 2. Pike's Peak district Granite...of Cripple Creek district Miscellaneous rocks 3. Silver Cliff and Rosita 4. Buffalo Peaks • 5. Leadville |
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| crystalline rocks Maine 1. Rocks from Aroostook 'County 2. Miscellaneous rocks5 v New Hampshire 5 Vermont...Carolina Georgia Kentucky 1.. Elliott County dike 2. Crittenden County dike Tennessee Missouri Arkansas Oklahoma...Upper Quinnesec Falls Schist from the Aragon iron mine Page. 5 15 5 18 5 24 5 25 5 25 5 25 5 26 26 5 27...Miscellaneous rocks 5 3. Apishapa quadrangle 5 4. Silver Cliff and Rosita 5. Central City quadrangle 5 6...Analyses of igneous and crystalline rocks-Continued. Colorado-Continued.5 18. San Cristobal quadrangle 5 19 |
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| ahead of any thing yet found on this ridge. This mine has also been explored and equipped in a very superior...City, Sierra county, to be thankful for a good deal. The telegraph for the Bald Mountain mine maintains...coast on that date (Wednesday), in copper, lead, silver and gold, the latter being San Francisco, at the...the country: On the Forest Hill divide, Placer county, where A remarkably good sample of a paper that...separates Bear river from Steep hollow in the same county constitutes another noted drift locality, the prominent |
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| 161 Science and industry. Allen, A. moving from mine-hoists Signaling Allen, C. A 232 cages 645 Allis-Chalmers...book review Assaying methods at the Globe & Phoenix mine 4 51 H. R. Edmands. 108 Association of Accountants.... . 166 473 Co., mill Henry Hanson .... 793 Mine and mill A. B. Parsons. . . . 619, 659 399...Black.... Selection and treatment of Concerning silver. Benedict, W. deL Benguet Consolidated, milling...under reduced pressure M. G. F. Siihnlein. Bolivian silver-tin ores .M. W. von Bernewitz. ... Books written |
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| engineering practice . Write forour new Catalog L. MINE & SMELTER SUPPLY CO., Agents REVERE RUBBER CO....York Office, 42 Broadway PURCHASERS OF Gold , Silver, Lead and Copper Ores ORE PURCHASING DEPARTMENT...Its Branches and Machine Work Manufacturers of Mine Cars, Skips, Cages, Semi- Steel Stamps, Dies and...Cumberland PLANTS AT Murray, Sandy, Park City and Silver City , Utah Address all communications to the Compony..., at the front door of the Court House of Iron County, in the City of Parowan , Utah , on the 26th day |
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| will forward catalogue, etc., on application. NEw SILVER VAULT.-The House evidently has no thought of the...sufficient to store $60,000,000. THE Young America quartz mine of Sierra City has become a solid dividend payer...We note in the North San Juan Times, of Nevada county, that a hydraulic gravel elevator is soon to be...Gravel Mining Company, at North Bloomfield, Nevada county, this State. We have interviewed the manager of...Mammoth Bar, Placer county, and on the ground of the Miocene Mining Company, in Butte county, and upon the |
