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| BULLETIN 527 ORE DEPOSITS OF THE HELENA MINING REGION MONTANA BY ADOLPH KNOPF WASHINGTON GOVERNMENT............................ Historical sketch of mining..................................................deposits............................. Tourmalinic gold depoits ..................................... Origin..................................... Marysville district..................................................................................... Elliston district.............................................. |
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| metallic values from the ores of copper, zinc, lead, gold, silver, graphite, molybdenum, mercury, etcetera...so successful. Allis-Chalmers Manufacturing Co. Mining Machinery Dept. OFFICES For Canadian MILWAUKEE...service from Superior Jaw Crusher Worthington mining equipment the from the standpoint of first cost...most wear, Worthington meets the needs of the mining industries with a complete line of products, from...Mills PUMPS, COMPRESSORS, OIL AND GAS ENGINES, MINING AND SMELTING MACHINERY CTON JOHN D. RYAN, |
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| metallic values from the ores of copper, zinc, lead, gold, silver, graphite, molybdenum, mercury, etcetera...Hydraulic TurbinpM MILWAUKEE, Metallurgical Machinery Mining Machinery Perforated Oil l-:imini-- Metals I'liiiiliini:...are getting the most in service from Worthington mining equipment — :the most from the standpoint of first...power consumption. Worthington meets needs of the mining industries with a complete line of products, from...Mills PUMPS, COMPRESSORS, OIL AND GAS ENGINES, MINING AND SMELTING MACHINERY CTON m "The Paramount |
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| published information, field investigations, and mining company data. 2 ABBREVIATIONS USED IN THIS REPORT...parts per billion percent short ton U.S. dollar gold silver copper lead zinc cobalt manganese iron uranium...resources Mining districts Gibbonsville Mining District Indian Creek Mining District Mineral Hill Mining District...Mackinaw Mining District Blackbird Mining District Wilson Creek Mining District Yellowjacket Mining District...Range Mining District Eureka Mining District Carmen Creek Mining District Eldorado Mining District Pratt |
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| Boise, Idaho FOR TY- FIRST ANNUAL REPORT OF THE Mining Industry of Idaho POR, PHE YEAR TO ARTHUR CAMPBELL...costs cmeo erro see Sse eae a cae oa cda Bene ee see Gold—Its Past and Future, by Merrill E. Shoup The Future...57 61 62 65 66 66 66 Public Relations for the Mining Industry, by E. S. Tillinghast..............--...esc ce ee Activities of the Coeur d’Alene Mining District Central Mine Rescue Station during 1939, by...Bibliography of Idaho’s Mineral Resources Original Mining Laws of 1866, by O. E. Kirkpatrick United States |
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| visitors, interested to see how rock have the yellow gold extracted therefrom, and how cleverly the little...Exposition.* G. Dodd, the superintendent of the mining departof the Union Iron Works, it will readily...veras county, Cal., lies Salt Spring val- Through this trough-like depression extends a gold belt reaching...and of greatly varying size. The gold-bearing quartz of the district is associated with these dykes, usually... 1 Mining and Scientific Press. Francisco, Cal. a resolution was presented having a , Mining and Scientific |
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| lie There is no doubt that the rapid advance of mining is one of the chief reasons that Canada is in such...of equal importance to men of the mining profession, students, mining investors, and that portion of the...to its nature—the lowly base metal or the coveted gold—quicken the wheels of Industry or prove the Open...explorers and pioneers who made possible Canada’s mining in¬ dustry, this book is respectfully dedicated...relate the history v v of events pertaining to mining on a half con¬ tinent from the time of the white |
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| 000 in dividends during the year, §2,000,000. Mining and Scientific Press distributed among the fortunate...largely to the prosThe perity of this section of the county. business men of the town seems to be drifting...ascribe it to, but think it is stipulated Wickes, Montana, [Written (or tlio Presb by our Traveling Correspoudenfc...G. Huston.] Wickes is one of the prosperous mining camps tributary to Helena as a base of supplies...The next station is Jefferson, which a short time since was the town of this county; but the reduction |
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| Creek Mining District PART II Geology and Ore Deposits of the OrovilleNighthawk Mining District By JOSEPH...Creek Mining District, and Part II, Geology and Ore Deposits of the Oroville-Nighthawk Mining District...GEOLOGY AND ORE DEPOSITS OF THE MYERS CREEK MINING DISTRICT. Paoe I NTRODUCTION . . . . . . . . . . • ... . . . . . . . . . . . . . . . 40 Minerals of district. . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . 47 Myers Creek Mining Co.'s property ........... ,.. ............. 47 |
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| LODE MINING IN THE FAIRBANKS DISTRICT. By J. B. MEIITIE, Jr. INTRODUCTION. Gold lode mining in the Fairbanks...Fairbanks district continued in 1916, with a small production. The cost of power and supplies has increased...prospecting. Most of the operators having high-grade gold ore do not care to continue work under present conditions...all. The general policy of all concerned in the gold mines is to await the coming of the Government railroad...Eight gold lode mines, however, were operated in the Fairbanks district in 1916, producing gold valued |
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| "\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 . _______________ .... ____ .. ______________ |
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| MINING IN THE FAIRBANKS DISTRICT. By THEODORE CHAPIN. GENERAL CONDITIONS. The mineral production of...of the Fairbanks district in 1917 included placer gold, valued at $1,310,000; lode gold, valued at $47...failures would doubtless have resulted. Quartz mining showed a slight increase, which in large part was...presence of large tungsten-bearing deposits. Five gold quartz mills were in operation during a part of...mills made small outputs. On the whole the gold quartz mining was insignificant. The production of antimony |
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| Logan, District Mining Engineer McK. Laizure, District W. Burling Tucker, Reid J. Mining Engineer...Engineer District Sampson, Assistant Mining Engineer District Engineer Chas. V. Averill, District Mining...Statistician and Curator Herbert A. Franke, Junior Mining Engineer (Librarian) — Sacramento San Francisco...REPORTS OF DISTRICT MINING ENGINEERS 7 Redding Field District 7 Sacramento Field District 7 Gold Mines...Mines of Placer County 7 San Francisco Field District 07 Los Angeles Field District 97 GEOLOGIC BRANCH |
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| Geological Survey Board and the Colorado Metal Mining Fund ~ oopr is PUBliC P[O'J>ERTY aud 1• DOt ~re~~o~...__________________________________________ _ 1 Summary of mining districts---.---------------------Introduction..._____________________ _ Copper deposits in Jefferson County __ _ F. M.D. property _____________ _ Malachite...Cherry Creek and Douglas County placers _________________________ _ Mining districts in the mineral belt...belt __________ _ Breckenridge district ___________________ _ Location __________________________ _ |
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| .......................... . Situation of the district ...................................................................... General geology of the district ................................................40 41 41 4 CONTENTS. General goology of the district-Continued. Structure ........ ~ . . . . . . ................................................... Gold ..................................................112 Quantity of porphyry ore developed in the district ..................................... . 114 Relations |
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| HAKEINGTON. SUMMARY OF MINING OPERATIONS. t A resume of the history of tin mining in Alaska up to 1914...Anikovik River in 1914 for the recovery of both gold and cassiterite but were operated only during that...streams of the Nome district." Hess mentions 3 that Goldbottom Creek in the Nome district, Fred Gulch, north...Mountain in 1902 and on Lost Eiver the following year. Mining operations have been carried on at both localities...leased to different corporations which did .some mining, milling! the ore in a small test mill at the mine |
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| DIRECTOR ECONOMIC GEOLOGY OF THE BINGHAM MINING DISTRICT, UTAH By JOHN MASON BODTWELL WITH A SECTION...DIRECTOR ECONOMIC GEOLOGY OF THE BINGHAM MINING ^DISTRICT, UTAH By JOHN MASON BOUTWELL WITH A SECTION...... 25 PART I. AREAL GEOLOGY OF THE BINGHAM DISTRICT, BY ARTHUR KEITH. Geography...............--.... PART II. ECONOMIC GEOLOGY OF THE BINGHAM MINING DISTRICT, UTAH, HY JOHN MASON BOUTWELL. Introduction...... Mining industry in Utah............................................................. Mining industry |
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| Ore minerals: Arsenopyrite, chalcopyrite, galena, gold, molybdenite, nagayite, pyrite, scheelite, sphalerite...the vein. The Granite Mountain vein contains free gold, pyrite, chalcopyrite, and specks of unidentified...free gold by panning (Katz, 1911). This vein was thought to be an extension of the vein at Gold Cord...arsenopyrite, scheelite, sphalerite, galena, and gold (last mineral deposited). Typical orientation of...where dip is lowest, highest gold values occur where dip is greatest. Gold occurs in zones of microbrecciation |
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| __ Laramide ore deposits____ _________________ __ Gold deposits__ _ _ _ __ __ _ _ __ __ _ _ _ __ ___ __...___ ______ Gold Bronze Mine_ _______________ __ Barnett Mine_______ ___ __ __________ Gold King Mine__...____________ _ Death Valley Mine_ _____________ ___ Columbia Mine_ ___________________ _ Leiser Ray Mine________...prospect north west of Kelso_ _____ Late Tertiary gold deposits ______________ _ Oro Belle Mine _________...sections from New York Mountains, Calif., to Johnnie district, Nevada ____________ -36 7. View N. 10° E. toward |
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| ... Slates and graywackes of the Kachemak Bay district............ Distribution...................................................................... Mining development......................................more important minerals of the ore deposits........ Gold..............................................................................................'... Gold lodes.............................................and prospects................ Resurrection Bay Mining Co. 's prospect................. Tozier-Lane Northern |
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| ...................................... . . Free gold ................................................... . . . . . . . . . . . _ . _ . Future of the district . _ . . . . . . . . _ . . . . . . . . . . . .... w . . . . . . . . . . . . . . . . . . . . . .. Gold Anchor mine . . . . . . . . . . _ _ . . . . . ............................ .. XXXVI. Map showing claim boundaries and principal underground workings of...Index map showing position of the Rico special district . . . . . . . . . . .. 239 40. Cross section of |
