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| INTRODUCTION. The area here called the Cosna-Nowitna region extends southward from Yukon and Tanana rivers...general way the 1 Hcrron, J. S., Explorations in Alaska, 1899: War Dept., Adjt. General's Office, No. 31... 1901. 211 212 MINERAL RESOURCES OF ALASKA, 1915. Yukon-Kuskokwim divide. A pack train of seven...the Yukon and Kuskokwim were mapped. Geologic mapping was extended over practically the same area. The...the eastern part. Still farther east, beyond the area surveyed, several small isolated ranges and hills |
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| Director Bulletin 754 THE RUBY-KUSKOKWIM REGION ALASKA BY J. B. MERTIE, JR. ' AND G. L. HARRINGTON...Local details____ ___________ Yukon River______ _________ Poorman Creek _____ Nowitna and Susulatna valleys...rocks Continued. Local details Continued. Page. Innoko district__________________________ 30 Takotna and...fish____ _ Other mining factors __________________________ Gold placers _ _ _ Ruby district _______________________________..._______________________________ History of mining ______________________ General character of placers________________ |
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| Placer Deposits of Alaska By EDWARD H. COBB GEOLOGICAL SURVEY BULLETIN 1374 An inventory of the...the placer mines and prospects of Alaska, their history and geologic setting UNITED STATES GOVERNMENT...and method of presentation __ Definitions _-____ Alaska Peninsula region Aleutian Islands region ________...Anchorage district _ Redoubt district ___-_ _ Valdez Creek district __ _ Willow Creek district Yentna district...district _____________ _ ____ __________ _____ Copper River region __ _ _ _ Chistochina district Nelchina |
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| MINERAL RESOURCES OF ALASKA, 1913. By ALFRED H. BROOKS and others. PREFACE. By ALFRED H. BROOKS The...annual bulletins 1 treating of the progress of mining in Alaska a.nd summarizing the results achieved du.ring...particular district are therefore urged to procure a. copy of the com plete report on th.at district as soon...the year and summaries of the conditions of the mining industry, including statistics of mineral production...shall serve as convenient reference works on the mining industry for the yea.rs which they cover. Lack |
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| HAKEINGTON. SUMMARY OF MINING OPERATIONS. t A resume of the history of tin mining in Alaska up to 1914 has been...his report. Stream tin was first found on Buhner Creek, a tributary of Anikovik River, in 1900, and there...since 1902. In 1911 a dredge was installed on Buck Creek which has been in operation each season since. Two...following season. A second dredge was installed on Buck Creek in 1915 and has worked each summer since that date...hull in 1916 and installed on a dredge on Swanson Creek, a tributary of Agiapuk Eiver. The hull was carried |
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| OTIS SMITH, DIKECTOB 4:4:2 MINERAL RESOURCES OF ALASKA REPORT ON PROGRESS OF INVESTIGATIONS IN 1909 ...The mining industry in 1909, by Alfred H. Brooks........................... Page. 5 20 Alaska coal...Charles A. Davis................ 101 Mining in southeastern Alaska, by Adolph Knopf......................reconnaissance in southeastern Alaska, by John C. Hoyt. Mining in the Chitina district, by Fred H. Moffit............................... Mining and prospecting on Prince William Sound, in 1909, by U. S. Grant.... |
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| TATONDUK-NATION DISTRICT, ALASKA By J. B. MERTIE, Jr. ABSTRACT The Tatonduk-Nation district occupies a triangular...triangular area of about 600 square miles that forms the southern end of the Yukon-Porcupine region,...eastcentral Alaska. The Yukon River, which runs N. 60° W. along the south side of this district, delimits...delimits the Yukon-Porcupine region on the north from the YukonTanana region to the south. The Yukon-Tanana...Yukon-Tanana region contains numerous towns and mining camps and in earlier years has been completely covered by |
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| SELECTED NONMETALLI FERGUS MINERAL DEPOSITS IN CENTRAL ALASKA TO ACCOMPANY OPEN-FILE MAP 77-1680 This report...SELECTED NONMETALLI FERGUS MINERAL DEPOSITS IN CENTRAL ALASKA (To accompany Open-file Map 77-168D) By G. Donald...accompanying map have been prepared under the Regional Alaska Mineral Resource Appraisal Program (RAMRAP) to...nonmetal1iferous deposits, both lode and placer, in central Alaska. Specifically excluded are the fossil fuels (petroleum...government and private sectors, discussions with mine operators, and the firsthand knowledge of the authors |
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| similar to those of the rich Coeur d'Alene mining district UNITED STATES GOVERNMENT PRINTING OFFICE,...___-_-______________Tamarack Creek fault_______------__________.____________ Silver Creek fault_____.__-___._______________...fault____.___-_-_---______-_-__-_______-___ Placer Creek fault-------_------_---_--____-_-_-______---_The...Lookout anticline ______________________ Swamp Creek anticline_-__--__----_--_----_-_-_-______._.-Cleavage...mine____-_-_________-_________________________ True Fissure mine._-_--____--__-_--_______-___-________--Deposits |
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| nes, prospects and mineral occurrences throughout Alaska. 6 I50" ctf o3 S _ --1.G184 LG1B6 ctf LG030...occurrences in the Livengood 1:250, 000-scale quadrangle, Alaska This and related reports are accessible through...(907) 786-7424. This compilation is authored by: Alaska 03 'B- ' ** o £2 0) j 1 Q o C/5 14- ...Curtis J. Freeman and Janet Schaefer Fairbanks, Alaska C^ '*s*^__^r*&*'' Location of map ar«a In Aluki...99-574 Alaska Resource Data File LG001 Site name(s): Troublesome Creek Site type: Mine ARDFno.: LG001 |
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| QUADRANGLE. By L. M. INTRODUCTORY STATEMENT. The area included in the Geological Survey's map of the Fair...64. The Fairbanks gold-placer district is in the eastern part of this area. During the season of 1908 a...Fairbanks district and during 1909 geologic investigations were carried north of the Fairbanks district and...portion of the quad rangle, including the Fairbanks district and extensive areas to the north and west, is...presence of the Fairbanks district in the south eastern part of the area covered by this sketch map |
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| Geology and Mineral Deposits of the St. Regis-Superior Area Mineral County, Montana By ARTHUR B. CAMPBELL CONTRIBUTIONS...fault-__--___---__-----_-_____--__-_----------Verde Creek fault-__-__--__--____-____-__-_-_-._-----Campground...fault.____________________________________ Dry Creek fault__-___._.__._.._..._.._......_._._.__.Other...deposits________________________________________ Little Pittsburg mine ______________________________________ Copper d...____________________________________________ Bear Creek prospect.______________________________________ |
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| Regional Geology of the St. Lawrence County Magnetite District Northwest Adirondacks, New York GEOLOGICAL SURVEY... Regional Geology of the St. Lawrence County Magnetite District Northwest Adirondacks, New York By A. F. BUDDINGTON...glacial geology, petrology, and structure of an area underlain predominantly by metamorphosed sediments...1891Regional geology of the St. Lawrence County magnetite district, northwest Adirondacks, New York, by A. F. Buddington...1891Eegional geology of the St. Lawrence County magnetite district, northwest Adirondacks, New York. 1962. (Card |
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| Formations Monola Formation and Bonanza King and Tamarack Canyon Dolomites Emigrant (?) Formation Cambrian...ages I-type and S-type and magnetite-series and ilmenite-series granitoids Physical features of the granitic...relations Donut ore body of the Pine Creek mine Pine Creek mine Strawberry mine Skarns in the Mount Morrison...Fine Gold Intrusive Suite 121 Tonalite of Ross Creek (Kro) 122 Bass Lake Tonalite (Kbl) 122 Granodiorite...Lakes (Kt) 127 Shaver Intrusive Suite 127 Dinkey Creek Granodiorite (Kdc, Kdcp) 128 Granodiorite of McKinley |
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| rocks in part of eastern California and location of area discussed in this report ______________________...of the South Fork of Big 8. 9. 10. 11. 12. Pine Creek ____ ~-----------------------------------------...-----Septum of metamorphic rock n.cross Bishop Creek below Lake Sabrina _____________________________...:. ___ -------View of Pine Creek pendant looking north across Pine Creek canyon______________________________________...Aplite, pegmatite, and alaskite dikes along Pine Creek ________ ·--~---------------------------------------Diagrammatic |
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| collection · of descriptions and analyses of North mine 1nost of the 1ninor constituents. An1erican meteorites...deten:nii1ed but are Ti0 2 , if it contains titanite, ilmenite, hornblende given as "traces." In most of these...New Jersey, Pennsylvania, Delaware, :Maryland, District. of Columbia, Virginia, Kentucky, North Cn.rolina...Colorado, Utah, New Mexico, Arizona. Pacific Coast: Alaska, British Columbia, Washington, Oregon, California...a.n1ount of magnetite frequently included the ilmenite, and MnO was also not generally reckoned in with |
