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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 ________...district McGrath district Northern Alaska region ____________ Northwestern Alaska region Kiana district ________...district _______ ___________________ Southeastern Alaska region ________________________ ill 1 2 4 4 7 |
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| SPRINGS DISTRICTS ALASKA BY J. B. MERTIE, JR. BY A. E. WATERS, JR. Mineral resources of Alaska. 1931 (Pages...____________-___--_____---__________-____163 Location of area._________--___-----_----___-___---_-_-_-163 Early...Little Minook Creek__.----___--.__.___.____--. 181 Idaho Bar_____ _..._... _. _ _ ____. _. __ 183 Little...creeks._____-_---__._.__--__.______________191 Eureka area._________________________________________ 192 Eureka...Island Creek.______________________ 199 Shirley Bar .__.__.--_..___.._____. 201 Glen Creek._______.___ |
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| Mendenhall, Director ^\ * Bulletin 872 THE YUKON-TANANA REGION ALASKA BY J. B. MERTIE, JR. UNITED STATES...relief__-______-____--_--------------_--_-_------- 12* Yukon Valley. ----------------------------------------Tanana...Valley..-. -_..._--------------------_---------.-Yukon-Tanana plateau___.----_--_--_---_-_-_-__--.__-____..._._--__._----__-------___-__ Prospecting in the Yukon-Tanana region___._____...__---_-____._ Index____...ILLUSTRATIONS Page PLATE 1. Geologic map of the Yukon-Tanana region.__-.._.-_-_.__ In pocket 2. Mount |
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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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| WALCOTT, DIRECTOR THE RAMPART GOLD PLACER REGION ALASKA L. M. PRINDLE-AND FRANK L. HESS WASHINGTON GOVEKNMENT........ 40 What Cheer Bar ......................................... 41 Seattle Bar........................................................... 42 Shirley Bar....................................................auriferous gravels. IV. A, View westward from Idaho Bar, down Little Minook Creek, showing portion of...high bench of Minook Creek exposed in tunnel on Idaho Bar.............................................. |
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| Smith, Director Bulletin 813 MINERAL RESOURCES OF ALASKA REPORT ON PROGRESS OF INVESTIGATIONS IN 1928 BY...Price 40 cents CONTENTS . Mineral industry of Alaska in 1928, by Philip S. Smith._______-___ Administrative...Selected list of Geological Survey publications on Alaska.______________ Page 1 73 97 125 143 165 I ILLUSTRATIONS...1. Sketch map of the Chakachamna-Stony region, Alaska, showing areas in which timber occurs...'_--____-__--_-... Geologic map of the Chakachamna-Stony region, Alaska._____ 3. Geologic map of upper Nizina River region |
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| COVER Top left: From late 199] to 1993 Cambior Alaska Inc. constructed the first phase of a two-phase...Phase one channeled the stream around the open-pit mine operations. During the stream diversion the company...quality, stream flow, and fish populations. When the mine closed, Valdez Creek was diverted back to its original...work on Pit A-8 of Valdez Creek gold mine operated by Cambior Alaska Inc. as it appeared in early August...August 1994. From 1984 to 1995 Cambior Alaska and previous operators produced 459,162 ounces (14,279 kilograms) |
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| DISTRICT, ALASKA By J. B. MERTIE, Jr. ABSTRACT The Tatonduk-Nation district occupies a triangular area of about...the southern end of the Yukon-Porcupine region, in eastcentral Alaska. The Yukon River, which runs N. 60°...delimits the Yukon-Porcupine region on the north from the YukonTanana region to the south. The Yukon-Tanana...reconnaissance topographic and geologic surveys. The Yukon-Porcupine region, on the other hand, is almost uninhabited...Geologically, as well as geographically, the Yukon River in this part of Alaska forms a significant boundary, for |
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| THE FAIRBANKS AND RAMPART QUADRANGLES YUKON-TANANA REGION, ALASKA BY L. M. PEINDLE WITH A SECTION ON THE...Other bench gravels______________________' Shirley. Bar ______________________________ Glenn Creek______... In planning the surveys and investigations of Alaska, the attempt was made to cover first those regions...made within the United States proper. But as the Alaska surveys are for the most part of a reconnaissance...Bulletin No. 280, " The Rampart gold placer region, Alaska," is here reprinted, in order that all the placers |
 | Weber, F.R., Wheeler, K.L., Rinehart, C.D., Chapman, R.M., Blodgett, R.B. (1992) Geologic map of the Livengood Quadrangle, Alaska. Open-File Report Vol. 1992 (92-562) US Geological Survey doi:10.3133/ofr92562 | Report (issue) |
| SURVEY Geologic map of the Livengood quadrangle, Alaska by F. R. Weber1 , K. L. Wheeler2, C. D. Rinehart2...endorsement by the U.S. Government. 1 Fairbanks, Alaska 99708 2 Menlo Park, California 94025 3 Reston,...locally frozen in silty channels; includes placer-mine tailings on sections of Quail, Troublesome, Ophir...Ophir, and Nome Creeks, streams in Livengood village area, and southeast of Chatanika River in Fairbanks mining...gravels in placer mining areas (Holocene) Placer-mine tailings derived from buried stream gravels worked |
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| MINERAL OCCURRENCES IN THE LIVENGOOD QUADRANGLE, ALASKA SUPPLEMENT TO OPEN-FILE REPORT 76-819 PART A SUMMARIES...mineral occurrences in the Livengood quadrangle, Alaska (Cobb, E. H., 1976, Summary of references to mineral...construction materials) in the Livengood quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-819...Geological Survey, the U.S. Bureau of Mines, and the Alaska Division of Geological and Geophysical Surveys...are: AOF B BMB C GC 1C OF MF P RI TDM USBM OF Alaska Division of Geological and Geophysical Surveys |
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| RUBY-KUSKOKWIM REGION ALASKA BY J. B. MERTIE, Jr. Mineral resources of Alaska, 1933 (Pages 115-245)..._______-___-____--._-_--.-__---_--__._______ Ruby area.______-_____--_----_--_-__________________ 137...and tributaries.________________________ Poorman area._______________________________________ Poorman...map showing location of Ruby-Kuskokwim region, Alaska...__________----._.___--_------_-__-__ 148 148...Ruby-Kuskokwirn region lies in west-central Alaska, between the Yukon and Kuskokwim Rivers. Gold was discovered |
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| 187-202, 1918. 321 822 MINERAL RESOURCES OF ALASKA, 1913. H endy mills in operation in this Qistrict...burn stumps. At one mine alone $20,000 a year is paid for wood used for fuel and mine timbering. A reduction...proposed railroad from tidewater to the interior of Alaska has already been felt. Its actual operation should...veins are about 6 inches to 3 feet wide. In a. small area or zone there may be a. dominant strike to which...wns controlled by any structural feature. At one mine two parallel ore shoots are horizontal. Others are |
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| of Metallic and Nonmetallic Mineral Deposits of Alaska Compiled From Published Reports of Federal and...of metallic and nonmetallic mineral deposits of Alaska, compiled from published reports of Federal and...resources Indexes. 2. Mines' and mineral resources Alaska. I. Kachadoorian, Reuben, 1921-, rjoint author...quadrangle_________________________-_________________ Fort Yukon quadrangle______________________________________...investigations__________________---_-_----____-__ Territory of Alaska Department of Mines pamphlets____________--_ 360 |
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| AND CIRCLE DISTRICTS ALASKA BY J. B. MERTIE, JR. Mineral resources of Alaska, 1936 (Pages 133-261)...___._ Wade Creek area._________________________________________ Chicken Creek area..._______________..._____________________________________ Franklin Creek area.______________________________________ Fortymile River area____...area____._-_______-__-__._.____________. Dome Creek area-_-----_____-_-_____-_-______-________.___ Eagle...American Creek area.______________________________________ Fourth of July Creek area._______----_----_____-----_----- |
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| mineralized shear zone in the southern part of the Idaho batholith By M. Dean Kleinkopf.. .... .. .........natural forest vegetation in the Snow Camp-Saxapahaw area, North Carolina, and the resulting expressions in...copper, and palladium in Lemhi County, east-central Idaho By George A. Desborough, William H. Raymond, and...Mountain calderas. The megabreccia of the Maple Peak area had previously been interpreted to be large breccia...obscured by extensive alluvial cover in the study area. INTRODUCTION An east-west-trending belt of Tertiary |
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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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| QUATERNARY GEOLOGY OF THE BELLEVUE AREA IN BLAINE AND CAMAS COUNTIES, IDAHO by Dwight Lyman Schmidt Open...BELU5VOE AREA IV BIAIHE AHD GAMAS COOTTEBS, IDAHO by Didjht L. Sehsddt ABSTRACT The Bellevue area covers...northwesterly; the intrusions are part of the Cretaceous Idaho batholith* Xrosional rennants of the Ghallis volcanies...or early Quaternary age* The sain Talleys of the area, partly erosional and partly structural in origin...sediments* The Big Hood River, the master stream of the area, flows southward through a narrov steep-sided valley |
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| of about 6,400 feet (2,130m) above mean Plain. Idaho sealevel in the NE l/4, sec.22,T. lN, R. 29 E, on...(A50976), Big Southern Butte, Snake River Plain. Idaho bk1 Fig. 1. Scanning electron photomicrograph of...Plain, Idaho. Bar scale is l0 microns. (Photo by James Nishi, U.S.G.S.) hematiteand magnetite(?)5 to |
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| _ Metamorphic rocks ________________________ _ Idaho Springs formation _______________ _ Swandy ke hornblende...Pre-Cambrian deposits _________________________ _ Mine descriptions __________________________ _ 39 39...Magmatic segregations and disseminations_ Cotopaxi mine _____________________ _ Copper deposits in Jefferson...property _____________ _ Malachite mine ________________ _ Empire mine __________________ _ Hypothermal...Hypothermal replacement veins _________ _ Isabel mine _______________________ _ 68 68 68 68 Lone Chimney, Mill |
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| Peekskifl, Conplex, New York Red Wine Mountains-Wilson area, Labrador Labwor Hi11s, Chogar Complex, Lake... _,, ULAC/ER ,A \\,,uo '' '\,.tt ur*tgt# MAP AREA ANTARCTICA Fig. l. Map of Tula Mountains-AmundsenBay...garnetiferousrocks. Individual layersofquartzite area few cm to 2 m thick. To take advantageof compositionalvariations...pressure-temperature estimates for Tula Mountains-Amundsen Bay area. Preferred values are 900oC and 7 kbar indicated...assemblagesapphirine-quartz is exposedover a fairly large area in the Archean 834 GREW: SAPPHIRINE + QUARTZ |
