 | | Report (issue) | | Wyoming 82071 (307) 766·2286 Front Cover - Wyoming gold. Gold buttons in the prospector's pan were recovered...by Dean Farris from mine dump waste in the Gold Hill district. The actual diameter of the button in the...the lower left is approximately ',4 inch. (Gold photographed by Alan J. VerPloeg; drawing by Phyllis A... . . . . . . . . . . . . . . . . . . . Kirwin district . . . . . . , . . . . . . . . . . . . . . . ....City) district .. . . . . . . . . . . . . . . . . . . . . . . . . 13 16 Stinkingwater district . . |  | | Report (issue) | | 1947 For sale by the Superintendent of Documents, U. S. Government Printing Office, Washington 25, D.............. Bedding-plane faults of the Eureka district Interpretation of original conditions along the.................................................. Gold ..................................................deposits................ Deposits of the Sylvanite district......................... ' Types of deposits....structural features............ Deposits of the Eureka district .............................. Types of deposits |  | | Report (volume) | | Economic Geology of the Idaho Springs District Clear Creek and Gilpin Counties, Colorado GEOLOGICAL (=)...1208 * Economic Geology of the Idaho Springs District Clear Creek and -i ;i ?i Gilpin Counties, Colorado...____ Mines and prospects in the Idaho Springs district ________________ Previous studies.___________...__________________________ ______________ __________ Chalcopyrite.____________.__:_____________________________...___________---______^_______________________ Relation of silver-gold ratios to zonal pattern _________________ Ore b |  | | Report (issue) | | S. Geological Survey. Al (Adams Cr.) Gold Nome district MF-445, loc. 88 Solomon (4.1, 12.45) 64°42'N...terrane; flows across belt of limestone. 50-60 oz gold recovered in 1900. Magnetite and garnet in concentrates...probably an error. (Adventuress Cr.) Gold Kougarok district MF-445, loc. 42 Solomon (3.2, 15.25) 64°52'N...probably worked out before 1908. (Aggie Cr.) Gold Council district MF-445, loc. 125 Solomon (13.25-13.5,...aerial photos taken in 1950. More than 300 kg of gold mined from Aggie and Mystery (trib. Niukluk R.) |  | | Report (volume) | | silver-gold prospect 36. Iron-stained zones near the International Boundary . 37. Meigs Peak gold-zinc...in 1975. Approximately 680,400 g (24,000 oz) of gold and probably a similar quantity of silver were produced...present study has identified two areas with important gold, copper, zinc, and silver resources within this...newly discovered Sweetheart Ridge mineralized zone gold-copper occurrence, the Tracy Arm zinc-copper prospect...consist of pyrrhotite, chalcopyrite, sphalerite, pyrite, galena, and some gold, in lenses and pods parallel |  | | Report (issue) | | Economic Geology of the ·central City District .Gilpin County, Colorado By PAUL K. SIMS, A. A. DRAKE...Kibler, 1918. Economic geology of the Central City district, Gilpin County, Colorado, by Paul K. Sims, A.A...Kibler, 1918Economic geology of the Central City district, Gilpin County, Colorado. 1963. (Card 2) 1. Geology...Economic-Colorado-Central City district. 2. Ore-deposits-Colorado-Central City district. 3. Mines and mineral...mineral re. sources-Colorado-Central City district. I. Drake, Avery Ala, 1927joint author. II. Tooker, Edwin |  | | Report (volume) | | metallic values from the ores of copper, zinc, lead, gold, silver, graphite, molybdenum, mercury, etcetera...WALTER Former HARVEY WEED, E.M. Geologist in the U. S. Geological Survey, 1883-1906; Member Institution...the iron mining companies of the Lake Superior district is given, and the many mining corporations of...letter. The Wellman-Seaver-Morgan Cleveland, Ohio, U. S. A. Branch Offices: New York, Denver, Seattle...of the Mining Industry Production of Metals in the U. S Yearly Average — Metal Prices Prices of Silver |  | | Report (issue) | | REPORT 19i6 Nines and Prospects, Idaho Springs District Clear Creek and Gilpin Counties, Colorado Descriptions...Commission Introduction The Idoiho Springs mining district forms an important segment of tae Front Range...the region iu~ west ct iioulder southwestward across the Front Range. From 1859, when placer gold was...was discovered in Idaho Springs and lode gold in Central City, through 1959, ores valued at about $200 million...west, and southwest. The adjacent Central City district, which produced ores valued at more than $100 |  | | Report (volume) | | ~r · . sale by the Superintendent of Documep.ts, U. S. Government Printigg Office Washin~ton 25, D. C...level, Bemrose shaft _____________________ _ 7. Plan of adit located 0.73 mile N. 36° W. of U. S. L. M. Hoosier...than a million dollars' worth of metals, chiefly gold and silver. This area was studied during 5 months...are widespread. 'l"hough locally rich in placer gold, they conceal many stratigraphic and structural...border. The higher-temperature deposits contain gold, subordinate amounts of tungsten and iron, minor |  | | Report (issue) | | . . . . . . . . . . . . . . . . . 37 Tyrone district . . . . . . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . 73 White Signal district . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . 111 Malone district . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . . 111 Gold Hill 116 History Geology 116 118 Mineral deposits.... . . . . . . . . . . . . . . . . . . . . . . . Gold-silver-base-metal veins . . . . . . . . . . . . |  | | Journal (volume) | | Geologist C. A. Logan, District Mining Engineer C. McK. Laizure, District W. Burling Tucker, Reid...Francisco - District Sampson, Assistant Mining Engineer District Engineer Chas. V. Averill, District Mining...Francisco San Francisco TABLE OF CONTENTS REPORTS OF DISTRICT MINING ENGINEERS Page 1 Sacramento Field Division...Angeles Field Division 1 Redding Field Division 3 Gold Deposits of the Redding and Weaverville Quadrangles...mining activities of the State, prepared by the district mining engineers are given. Special articles dealing |  | | Report (issue) | | ............................................... Gold ores.......................................................................................... 51 Gold ............................... ......... Mining.................................... -52 31 Cynide Gold Nining Company ..................:.................................................... 60 Boulder Gold Mining Company ................................................. : 63 64 Metals Mining Company Gold Shaft group ...................................... |  | | Journal (volume) | | Geologist C. A. C. Logan, District Mining Engineer McK. Laizure, District W. Burling Tucker, Reid ...Engineer District Sampson, Assistant Mining Engineer District Engineer Chas. V. Averill, District Mining...REPORTS OF DISTRICT MINING ENGINEERS 7 Redding Field District 7 Sacramento Field District 7 Gold Mines...County 7 San Francisco Field District 07 Los Angeles Field District 97 GEOLOGIC BRANCH 98 Current...possibilities, and developments). REPORTS OF DISTRICT MINING ENGINEERS In 1919-1920 the Mining Bureau |  | | Report (volume) | | ·········································-····· Gold and silver ····································...deposit in a breccia pipe, possibly with additional gold and silver, or a disseminated molybdenum deposit...with the veins are copper, lead, zinc, silver, and gold. The veins have been intensively prospected in the... bring additional thousands of people into the region. Burgeoning land development on INTRODUCTION'...troughline and direction of plunge - - - - FAULT-U, upthrown block; D. downthrown block FIGURE 1.-Part |  | | Journal (volume) | | ^ Wl'tT* If-lff' '*I!T*K^lr' U^iv,oi BIBDHG LIST OCT 1 1922; \v INDEX TO VOLUME : . Mining...Ditto at Oroya. Peru Julian & Smart's Cyaniding Gold and Ditto Silver Ores, book review DittL Work and.... . . . 84 193 134 357 218 394 Cyaniding gold and silver ores. Julian & Smart's, book A. W. Allen...216 249 Spraying with atomized metal Synthetic gold Thacher. Arthur 180 389 24S 319 134 minerals relief...A Calculations, book review Hornsilver mining district .J. K. Turner. ... Hulse. E. W.. obituary Co-ordination |  | | Journal (volume) | | zcv >- IIMDEX: Page. of Costa Rica Abanearez Gold Fields 206, 358, 511, 666, 1032 833 **2, 34, ...prevention . . . Queen Co.'s mine, Arizona Accident Gold Mining Co., Subil mine, French Gulch, Rules, Copper...906 Fairbanks district output 1913 945 Fairbanks distrtot sts^mp-raiUs 341 Fineness of gold ati Lift, ... . j Glaciers Gold dredges Gold placer district, new Gold placer production Gold placers Coldstream...Coldstream, No. 17 u: •,• • ••••••• Editorial rule In Nelchina placer district Nome storm Ditto Editorial |  | | Report (issue) | | metals-------------------------------------------- 43. Gold and silver----------------------------------------...deposit in a breccia pipe, po.ssibly with additional gold and silver, or a disseminated molybdenum deposit...with the veins are copper, lead, zinc, silver, and gold. The veins have been intensively prospected in the... bring additional thousands of people into the region. Burgeoning land development on the east flank...d U,. upthro"'n blocK D = downthrol"u I> F~u |  | | Report (issue) | | and Tertiary rocks of the San Diego coastal plain region Cretaceous system Tertiary system _ Paleocene rocks...88 88 88 89 89 district Mesa Grande district __ Ramona district Rincon _ district Other areas Miscellaneous...97 97 115 116 . _ Gold District summaries Julian district Escondido region Mesa Grande Dulzura...Dulzura 121 121 district (Rice) district Ballena placer deposits Additional gold mines Boulder Creek group...20 121 district Montezuma 16 1 121 district Area south of Pine Valley El Cajon district Laguna |  | | Report (issue) | | "\VALCOTT, DIRECTOR GEO LOGY AND GOLD DEPOSITS OF THE CRIPPLE CREEK DISTRICT, COLORADO BY \V ALDEl\;IAR... . . . . . . . First geological survey of the district .............................. _• . . . . . ..................... Geological structure of the district ............... _................... __ .. _...._____________ ........ . 100 Petrology of the district ______________ . _______________________________________________...___ _ 113 Chapter IV. -General mineralogy of the district . _______________ .... ____ .. ______________ |  | | Journal (volume) | | g Scientific Press December, July to 121 n u u Page Page Acme Motor Truck Co .Resume Adam, H... 327 Agnew, John A .... 89S Editorial Co Alaska Gold Mines Editorial .... 475 Alaska Treadwell .... 441...Lubricants, book review L. B. Lockhart Amprican-made gold-dred?e for New Zealand . . . . . . . . ...823 324 . . . . Operations of Consolidated Gold Fields of South 881 Africa 747 American Mining Congress...Bailey, F. J. .First-aid Baking . . . and 'gold' ore . . . . . 39 241 479 Editorial .... |  | | Journal (volume) | | Montreal Sorby, Fahrenwald, F. A., Cleveland, U. S. Fieldner, A. C, Washington, D. C Foley, Hamilton...Arm 786 Steel Industry Projected '4^ 467 Stewart District Silver Ores, —V. Dolmage 454 Tetrahedrite Occurrences...Grav Sydney Coast Erosion Gold 30 Canada— 1919 Cobalt Production Argonaut Gold Mine, —C. W. Knight, Geol...Placers in Ontario, Dr. Coleman 221, 752 Matachewen Gold Area,—A. G. Burrows, Geol. Report505, 950 Mclntyre-Porcupine...Hollinger Mine 957 Porcupine Gold Mines, Some Notes 856 Porcupine Gold Companies' Assessment Appeal 177 |  | | Journal (volume) | | visitors, interested to see how rock have the yellow gold extracted therefrom, and how cleverly the little...val- Through this trough-like depression extends a gold belt reaching a distance of fifteen miles from the...and of greatly varying size. The gold-bearing quartz of the district is associated with these dykes, usually...Street, San Francisco, J. F. S. F. Some Coast Gold $3 00 4 00 Postoffiee as second-class mall matter...Mine of Salt Spring Spring Valley, Cal., 1. Coast Gold Yield in '99; What is Alluvial? Decision of the |  | | Journal (volume) | | exploitation and op- brought $ 1.29 an ounce and when gold, in prevails that, in time to come, better and...-roots. The discovery of the Howell reads al district has been not most like a romance . ed for its...panic of 1907 ; period when Little Cottonwood district was There is always a feeling of mystery and but...Howell then wild and wooley west, when silver district, and especially so when the opinion would be one...that LAKE MINING REVIEW , APRIL the the old shaft should have reached the tun- wonderful Cardiff |  | | Journal (issue) | | Taylor 9294. Columbia WEibeck Lansdowne; District Canada 3624, cable Advertisement Hopkin EUROPEAN...to lease the land. Incentive Payment Plans for Gold Meet Opposition From Executive Branch. . . The mittee...authorize federal incentive payments to domestic gold producers. The report of the Department.ot Interior...that would establish or imply a second price for gold, different from the $35 per ounce price now in effect...bill (H. R. 6375) would result in a Situation that gold costing the government $70 an ounce would be offered |  | | Journal (issue) | | keynote of the dramatic recovery of uranium from gold-mine tailings now under way in the Union of South... High-Face December Jumbo 1955—Engineering Shaft Jumbo and Mining Journal Be Tractor Jumbo ...lishing “ten Tne. Re iiensy: Chicago 11. Wiles, G Mack; U.8,A, al Fighte secswved in the Engineering posit...haulage way. Model FX Power Pump in Canadian Model gold operated mine for de-watering service. FD-FS...time 3 trammers 13 cars all rolling December U N ION Ol} a y in these bearings, failures are a |
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