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| Mineral Resources of the Elkhorn Wilderness Study Area, Montana A cooperative study by the U.S. Geological...Interpretation of aeromagnetic anomalies Anomalies 1, 2, and 3 A XI OHldl jr I I .L..I. 14 15 15 Structural...JLJL 12 13 13 Younger intrusive rocks Eocene quartz latite porphyry Felsic flows, tuffs, and intrusive...Introduction Mineral deposits in and near the study area East flank zone Pyritiferous veins Silver-lead-zinc...deposit':?.. Elkhorn-Tizer Basin zone Elkhorn district -»_»_.,H"1 -? r7Q f i-L^ifciL P. d o-i-n DdO-Lll |
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| forest lands in the Boulder-Pioneer wilderness study area, central Idaho, that is being considered for wilderness...Resources of the Boulder-Pioneer Wilderness Study Area, Blaine and Custer Counties, Idaho By U.S. GEOLOGICAL...Geology of the Boulder-Pioneer wilderness study area, Blaine and Custer Counties, Idaho B. Aeromagnetic...studies of the Boulder-Pioneer wilderness study area, Blaine and Custer Counties, Idaho C. A geological...appraisal of the Boulder-Pioneer wilderness study area, Blaine and Custer Counties, Idaho STUDIES RELATED |
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| Variscan calc-alkaline lamprophyres in the Krupka ore district, Eastern Krušné hory/Erzgebirge: their relationship...the greisen tin-, tungsten- and molybdenum-ore district of Krupka in the Eastern Krušné hory/Erzgebirge...lamprophyres represent primary mantle melts that underwent no or little fractionation or contamination, and high...the mantle wedge. The lamprophyres in the Krupka district were variably greisenized in the vicinity of granite...indicates that the mantle metasomatism beneath the KHE area occurred before the late Variscan granitic magmas |
 | Pearson, R.C., Braddock, W.A., Flanigan, V.J., Patten, L.L. (1981) Mineral resources of the Comanche-Big South, Neota-Flat Top, and Never Summer Wilderness Study Area, north-central Colorado. Open-File Report Vol. 1981 (81-578) US Geological Survey doi:10.3133/ofr81578 | Report (issue) |
| ...................... Comanche-Big South study area........................................ Mining claims............................. Neota-Flat Top study area............................................ Interpretation............................... Never Summer study area.............................................. Mining...34 45 53 55 Illustrations Page Plate 1. 2. 3. Figure 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Geologic map of...Neota-Flat Top, and Never Summer wilderness study area, Colorado....... In pocket Index map showing location |
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| Lost Sheep mine, Spar Mountain, Juab County. CONTENTS Page Dell No. 5 Claim . . . . . . . . . . . . ..... . 43 Floride No. 1 Mine . . . . . . . . . . . . . . . . . . . . . . . 44 Floride No.5 Mine . . . ..... . 44 Floride No. 13 Mine . . . . . . . . . . . . . . . . . . . . . . 45 Floride No. 18 Mine .........Fluorine Queen No. 1 Mine . . . . . . . . . . . . . . . . . . 47 Fluorine Queen No. 2 Mine . . . . .... . . . . . . . . . . . . . 48 Fluorine Queen No. 4 Mine . . . . . . . . . . . . . . . . . . 48 Green |
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| DEPOSITS IN THE DRIPPING SPRING QUARTZHE, GIIA COUNTY, ARIZONA By H. C. Granger and R« B. Raup Prepared...May Havajo North Star Peacock QuartziteBainbow 1 2 5 5 " -8 10 12 15 l6 19 22 2U 27 Ort jw *f 32 35...pocket) Figure 1. 2» 3* 4. 5. 6. 7. 8. 9* Index map shoving uranium deposits in Gila County.; Arizona. Geologic...Geologic maps of adits 1 and 2, Donna Lee deposits. Geologic map of adit and prospect pit, Iris deposit...Joe deposits. Geologic maps and section of adits 2 and 3* Little Joe deposits Map and section of workings |
 | Evans, James G., Pankraatz, Leroy, Ridenour, James, Schmauch, Steven W., Zilka, Nicholas T. (1977) Mineral resources of the Sheep Mountain Wilderness study area and the Cucamonga Wilderness and additions, Los Angeles and San Bernardino counties, California. Open-File Report Vol. 1977 (77-251) US Geological Survey doi:10.3133/ofr77251 | Report (issue) |
| RESOURCES OF THE SHEEP MOUNTAIN WlLDERNESS STUDY AREA AND THE CUCAMONGA WILDERNESS AND ADDITIONS, ~ LOS...RESOURCES OF THE SHEEP MOUNTAIN WILDERNESS STUDY AREA AND THE CUCAMONGA \.J'ILDERNESS AND ADDITIONS, Los...forest lands in the Sheep Mountain Wilderness study area and the Cucamonga Wilderness and additions that...RESOURCES OF THE SHEEP MOUNTAIN WILDERNESS STUDY AREA AND THE CUCAMONGA WILDERNESS AND ADDITIO NS , Los...Geology of the Sheep Mountain Wilderness stud y area and the Cucamonga Wilderness and additions, Los |
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| PROSPECTS, LAWSON-DUMONT-FALL RIVER DISTRICT, CLEAR CREEK COUNTY, COLORADO By C. C. Hawley and Frank...Production References cited Mine descriptions « Lawson area, north of Clear Creek Larger mines in the Red Elephant...United tunnel Unknown No. C4-3 Other mines or prospects tabular summary Lawson area, south of Clear Creek...34 37 HI 41 12 46 47 48 51 Contents Page Lawson area, south of Clear Creek Continued Other mines Climax...mine Other mines or prospects tabular summaryDumont area, north of Clear Creek« Larger mines- - , , , Albro |
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| Honkala, O. A. Payne, and E. T. Ruppel CONTENTS Lot no. Introduction......................... Acknowledgments.... Canyon Creek no. 1............. Canyon Creek no. 2............. Melrose Adit no. 2 ............. Spectrographic...Spectrographic analyses.... Melrose Adit no. 1 ............. South Greenstone Gulch ......... Kelley Gulch......... Cave Creek.................... Page Lot no. 1 1 Tables of Stratigraphic sections Continued...Trench no. 4 ................ 1251 Odell Creek ................... 1252 Centennial Range Trench no. 1 . |
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| VoL XXI, .N c.2 April, 1950 lfbtiurrstty of Arij£oua iulltUu ARIZONA, BUREAU OF MINES ARIZONA ZINC...ARIZONA BUREAU OF MINES, GEOLOGICAL SERIES No. 18, BULLETIN NO. -156 PUBLISHED BY linhttrsitg of Ari!ona...ona TUCSON, ARIZONA April, 1950 Vol. XXI, No.2 ){ninf,faiil1 of 1\rtlona I ~ul1rtin -' BOARD OF REGENTS'...at cost to nonresidents of Arizona upon reauest. 2. The classification of mineral and rock specimens;...authorized June 29, 1921. April, 1950 Vol. XXI, No.2 1ltuitttrntty uf ArilUUU ~ullrttu ARIZONA BUREAU |
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| OTIS SMITH, DIHECTOK BULLETIN 605 THE ELLAMAR DISTRICT/ALASKA BY S. R. CAPPS AND B. L. JOHNSON WASHINGTON........................... Relation ,of Ellamar district to Prince William Sound mineral belts.. Distribution...Distribution of mineral deposits within the Ellamar district.......... Production............................Relation of the mineral deposits of the Ellamar district to metallogenetic epochs and provinces................... 84 Mines and prospects of Ellamar district...................................... 87 Copper |
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| T. PARDEE. LOCATION AND ROUTES OF ACCESS. The area described in this report is in Missoula, Granite...Cliff; and Clinton for the mines of the Clinton district. Many of the mining camps may be reached also...the road from Missoula to Ovando. As a whole, the area is but sparsely inhabited, and its chief industries...Felan and Tenmile creeks, a part of the Clinton district, and a few tracts elsewhere were examined by E...to time in the mining journals, no reports covering all of the area here described have hitherto been |
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| Montana. 1963. (Card 2) 1 1. 'Geology-Montana-.Jefferson City quadrangle. 2. Ore-depositsMontana-Jefferson...the Boulder batholith __________________ _ Butte quartz monzonite _____________________ _ Rock type cl...batholithic volcanic rocks ___________________ _ Quartz latite _____________________________ -Distribution...Chalcedony vein zones _________________________ _ Quartz latite dikes _____________________________ _ Non...Comparison with adjacent areas _____________________ _ 1 2 4 4 4 5 6 6 8 8 15 15 16 16 17 17 17 17 18 18 19 19 |
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| TIN-TANTALUM-LITHIUM PEGMATITES OF THE S•O JO_•O DEL REI DISTRICT, MINAS E. WM. GERAIS, BRAZIL x HEINRICH ABSTRACT...generationsof pegmatitesoccurin the S[o Jo•o del Rei district of Minas Gerais, Brazil: 1) a pre-tectonicgroup...accessorycassiterite, columbiteand microlite, and 2) a post-tectonicgroup, with cassiterite, tantalit...spodumene-bearing typesshow 1) rudimentaryzoning or 2) nonzonal units of contrasting texture and grain size...main areasare recognized:1. The northern Brazil area, in the statesof Rio Grande do Norte, Paraiba and |
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| _.____-___-_-_-._-.-__--___----..---__-.-.___._ 2 Purpose of the investigation....___-_.___.______--_____-_-___...Geography_____________________________________________________ 2 3 3 4 5 Location and accessibility.--_-__-------...______..__-_-._.______________-__ Dry Creek stock of quartz monzonite or granodiorite _ _ Granodiorite stock...stock of quartz monsonite______-__-_-__ 24 24 24 28 28 29 Parmenter Creek stock of quartz monzonite__...____ _ _________ Grouse Mountain-Callahan Creek area._.___---_--__-____ 95 95 96 96 96 96 97 97 Snowstorm |
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| Page Abstract . 1 $* « Introduction 2 Geologic; setting 2 Stratigraphy Oligacene sediments Columbia... Deposits in Columbia County * .* *" General-characteristics:: .~ Yonkton area 3 3 4 4 4 7 »«.* General... 15 M'.Y 2 8 «ei ILLUSTRATIONS after page Figure Bid ex. map of northwestern Oregon 2 Plate 1 Omitted...Omitted -.; > -.*./.;.., . : v 2. Geologic map* and^ sections, Yankton area In folio 1 ~>r3: Geologic...analyses of auger hole No* 1, Alder Creek deposit. 6 Auger holes, Yankton area 8 Auger holes, Alder |
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| 91 Geology and Mineral Resources of Rio Arriba County, New Mexico by E D W A R D C . B I N G L E R 1968.............. STRATIGRAPHY Precambrian rocks 1 2 2 3 3 6 7 ........................................quartzite .................................... 9 Quartz-muscovite-biotite schist ........................ .: 83 .. .. : 5 : . . a, 5 0 ry 9 0, Y 0 2 ... ... . ... . ... .. ... ... . ... .. .. : . .... .. .. .. .. .. .. .. .. .. u k u rn rn U - 2 Fr . . . .. ... .. ... .. ... .. .. .. .. .. |
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| Precambriantimes. The sulfidesin the drill core show no supergene enrichmentsubsequent to the metamorphism...engineersand geologistshave examinedthe prospect. An adit, the Antiga Galeria, totalling 84 meters of drift...mappedthe geologyin 1961, and drove adit No. 2 for 72 meters and adit No. 3 for 15 meters. During 1962 both...meters. The explorationproject in the Pedra Verde area was carried out for Industria Sul Americana...PRECAMBRIAN SUPERGENE COPPER 193 4//4/ Trench lditNo.2,,,,,"•o' GaleriaJ IJlJllll/ Core . Drill Hale |
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| Eastem Part of the Sawtooth National Recreation Area, Custer and Blaine Counties, Idaho STUDIES RELATED...BULLETIN AREAS 1545 of the mzneral potentzal of the area Chapters A -E UNITED STATES GOVERNMENT PRINTING...eastern part of the Sawtooth National RecreatiOn Area, Custer and Blame Counties, Idaho (Studies related...of Docs No I 19 3 M66/10 1 Mmes and mmeral resources-Idaho-Sawtooth National Recreation Area 2 Sawtooth...Sawtooth NatiOnal RecreatiOn Area (Idaho) Geolog~cal Survey (US) II Umted States Bureau of Mmes III Senes IV |
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| 718 GEOLOGY AND ORE DEPOSITS OF THE ' CREEDE DISTRICT, COLORADO BY WILLIAM H. EMMONS AND ESPER S................................................... 2 3 6 6 6 7 7 8 8 Bibliography.............................................................. Fisher quartz latite........................................................................... Outlet Tunnel quartz latite............................................................................ Phoenix Park quartz latite........................................ |
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| of report_ Acknowledgments Geography Location and area _ Topography _____ ___ . Drainage________-___ a...Mineralogy ________________.__________________ Lost River area ____________ __________________ Geographic feat...__ _ ______ ___ Limestone ___ ___ ___ ______ _ Quartz porphyry dikes __ ___ _ _________ Granite ____...Erosion____________________________________ 276046 1 1 1 2 2 2 3 4 5 7 9 10 10 11 12 33 13 15 15 1C 16 17 17 19...44 45 45 46 48 49 49 IV CONTENTS. Lost River area Continued. Prospects ____ __ _____________________ |
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| standards and nomenclature. • CONTENTS Page Page County and site name Kelly Camp Kettle Key East Knob.................... 21 22 24 25 26 27 28 29 30 - 2 308 344 353 314 315 359 360 316 361 317 318 362 319...placer Sunset Creek placer Victor FERRY Republic district Addison Alva Stout placer Belcher Ben Hur Black...HARBOR Burnt Peak Egge Elma Esther-Irene Skunk Creek No. 19 iii 624 620 623 621 622 . . • . . . . • •...Dutch Miller Grand Central Great Republic Guye Quartz Creek Royal Reward Seattle-Cascade Snoquahnie Una |
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| Bulletin No. 1. The Mineral Resources of New Mexico, Fayette A. Jones, 1915. Bulletin No. 2. Manganese...Wells, 1918. Bulletin No. 3. Oil and Gas Possibilities of the Puertecito District, Socorro and Valencia...Bulletin No. 4. Fluorspar in New Mexico, W. D. Johnston, Jr., 1928. (Price 60 cents.) ¹Bulletins 1, 2 and...Survey of the New Mexico School of Mines. They arc no longer available for distributio n . 1 FLUORSPAR...producing state of the west. In 1911 Darton and Burchard 2 published a description of the Sadler property near |
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| Coal Deposits of the Santa Clara District near Tonichi Sonora, Mexico GEOLOGICAL SURVEY BULLETIN 962-A...962-A Coal Deposits of the Santa Clara District near Tonichi Sonora, Mexico By IVAN F. WILSON and...VICTOR S. ROCHA GEOLOGICAL SURVEY BULL E.T IN 9 6 2 - A A study undertaken to aid industrial development................ Location and accessibility of the-area................................ History of mining................ General sequence in Santa Clara district and surrounding region..... Barranca formation |
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| ___-__________-_-----_---_--_-____64 Arcade No. 1 and No. 2 claims.___________________ 65 Ballard mica...Lode by Peter Joralemon._______________ 65 Beecher No. 2 and Longview spodumene claims by Peter Joralemon..._ 73 Big Spar No. 1 by J. W. Adams. ___. _______ 74 Blue Bonnet, Star, and Mica King No. 3 claims byJ..._ _ _ 92 Custer Mica Lode No. 1______-_-____-__..___ 97 Custer Mica Lode No. 2_______________,____ _ 97...mine.__________-__________._- ___ Good Hope No. 1 and No. 2.__________----_---_Greene mine by W. C. St |
