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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...proceeded down the river on a raft, arriving at Ruby September 3. Topographic work was carried on by...the Yukon and Kuskokwim were mapped. Geologic mapping was extended over practically the same area. The |
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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 |
 | Nokleberg, W.J., Bundtzen, T.K., Berg, H.C., Brew, D.A., Grybeck, Donald, Robinson, M.S., Smith, T.E., Yeend, W.E. (1988) Metallogeny and major mineral deposits of Alaska. Open-File Report Vol. 1988 (88-73) US Geological Survey doi:10.3133/ofr8873 | Report (issue) |
| SURVEY Metallogeny and Major Mineral Deposits of Alaska by 1 Thomas K. BundtzenS 7 Henry C. Berg 0"3 ,...endorsement by the U.S.G.S. ' U.S. Geological Survey ^ Alaska Division of Geological and Geophysical Surveys...unpublished data on metalliferous mineral deposits of Alaska, and on recent and older published articles and... universities, the U.S. Geological Survey, the Alaska Division of Geological and Geophysical Surveys... Andersen, Resource Associates of Alaska, Inc., Fairbanks, Alaska Roger P. Ashley, U.S. Geological Survey |
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| Box7147,SanFrancisco, California 94120-7147 NORTHERN Alaska forms one of the last frontiers for mineral explorationwithin...Rangeschistbelt are foundin the Ruby geanticline, andit hasbeen speculatedthat the Ruby geanticline isa riftedfragmentof...this volumeare locatedin aroundthe rim of the Yukon-Koyukuk basin(Fig. 1). the BrooksRangeandSewardPeninsula...middlePaleozoic throughMesozoic BrooksRange and the Ruby geanticline.These sedimentary succession lyingonbasement...(80-89 TIN BROOKS GRANITES SEWARD PEN. .YUKON v ,β’KOYUKUK LATE BASIN LATE QTZ CRET. OTZ MONZ PLUTONS |
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| of the Kobuk River basin there is a mineralized area in which placer gold has been mined and copper,...produced annually for several years, in 1910 the district was nearly deserted. Many problems of importance...and the Kobuk on the south. Although this small area is the place where minerals of economic importance...features of northwestern Alaska is in preparation and will serve to extend the area covered by this more...TOPOGRAPHY. Figure 19 shows the general location of the area, which for convenience will be called the Shungnak |
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| OTIS SMITH, Director Bulletin 631 THE YUKON-KOYUKUK REGION ALASKA, BY HENRY M. EAKIN WASHINGTON GOVERNMENT...____________ Ray-Kanuti divide____.._______. ____________ Yukon section above Melozitna River______________ Gold...area____ Kanuti River area_..__ Upper Melozitna River area _ _ 3 33 34 34 4 CONTENTS. Descriptive geology...Hill area___...______________________.__ 35 Tanana area ____________________________ 35 Structure__________..._____ Tozitna basin _________________ _______ Koyukuk Valley ___________..____________ Alluvial plairi |
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| OF THE YUKON-KOYUKUK REGION. By .HENRY M. EAKIN. INTRODUCTION. The region in central Alaska lying between...between Yukon and Koyukuk rivers westward from the Yulron Flats has in general been little frequen ted...unexplored. The northwestern part of the region, along Koyukuk River, was visited by Schrader 1 in 1899, and the...River, by Maddren in 1909.8 The areas along the Yukon have been touched upon by Dall,' Russell,6 Spurr...others incident to general investigations along the Yukon or to the surveys of adjacent regions. DW'ing the |
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| of the Baird Mountains quadrangle, northwestern Alaska by S. M. Karl , U. R. Thompson , and J. M. Schmidt...standards and strati graphic nomenclature. Anchorage, Alaska 1985 Introduction The Baird Mountains 1:250...resource potential at the turn of the century. The area was initially mined for coal and placer gold deposits...(table 1). The subject index includes topical, area specific and regional categories. References designated...Geological Survey bibliographies, and State of Alaska bibliographies. References include state and federal |
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| GOLD-PLACER DISTRICT ALASKA WITH ACCOUNTS OF THE CENTRAL KUSKOKWIM YALLEY AND THE RUBY CREEK AND GOLD HILL................................................. Yukon River....................................................:................................ Birch Creek schist............................................Innoko..........................'...... 67 Ganes Creek...................................................Innoko placers........................ 75 Ruby Creek area........................................... |
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| RADIOACTIVE DEPOSITS IN THE RUBY-POORMAN AND NIXON FORK DISTRICTS, WEST-CENTRAL ALASKA, 1949 UNITED STATES...RADIOACTIVE DEPOSITS IN THE RUBY-POORMAN AND NIXON FORK DISTRICTS, WEST-CENTRAL ALASKA, 1949 By Max G. White...I, Calif. CONTENTS Page Chapter A. Ruby-Poorman district Abstract ............................. Introduction...Radioactivity investigations ........... Ruby, area ....................... Long area ....................... Granite............ Granite on upper Flint Creek ............... Poorman area .................. . Summary and |
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| MERTEE, Jr. INTRODUCTION The area here called the Chandalar district lies between meridians 147Β° and...River and the North Fork of Chandalar River. This area includes nearly all of the Chandalar River valley...River. Mining operations at present are confined to Little and Big Squaw creeks and to Big Creek, all three...Chandalar River. The Koyukuk mining district lies to the west of the Chandalar district. (See fig. 8.) The...The earliest geologic work in the Chandalar district was done in 1899, when F. C. Schrader 1 and T. G |
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| OTIS SMITH, Director Bulletin 754 THE RUBY-KUSKOKWIM REGION ALASKA BY J. B. MERTIE, JR. ' AND G. L....Local details____ ___________ Yukon River______ _________ Poorman Creek _____ Nowitna and Susulatna valleys...__________ _ Age____________,._____T._________ . Quartz monzonite___________:-+ .__ __- : Areal distribution...Continued. Igneous rocks Continued. Pate, Oligoclase-quartz diorite, soda granite, oligoclase dacite, and soda...Petrographic character ___ ______________ 73 Oligoclase-quartz diorite and oligoclase dacite_____ 73 Soda granite |
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| DiBECTOB BULLETIN 536 THE NOATAK-KOBUE REGION ALASKA BY PHILIP S. SMITH WASHINGTON GOVERNMENT PRINTING............. Koyukuk River to Helpmejack Creek. .......................... Helpmejack Creek to head. ....or Upper Jurassic series....................... Koyukuk group............................................Kobuk basin..................................... Koyukuk basin................................... Other...117 Older quartz veins................................................ 118 Younger quartz veins..... |
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| PLACERS OF THE RUBY DISTRICT. By HENRY M. EAKIN. LOCATION AND EXTENT OF THE DISTRICT. The chief settlement...settlement of the Ruby district is Ruby, situated on the south bank of Yukon River opposite the mouth of...principal placer mines of the district are about 25 miles south of Ruby on a number of streams that belong...belong to the Nowitna River system. The area that includes the mines is small, but auriferous gravels...in the surrounding territory extending from the Yukon southward 50 miles or more, with a width somewhat |
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| NOTES ON MINING IN SEWARD PENINSULA. By PHILIP S. SMITH. INTRODUCTION. No party from the Geological...During that time he obtained some notes on the mining industry, and these, supplemented by reports in...the amount of winter mining; second, a general decrease in the number of mining operations except dredging;...development of the ancient beaches at Nome winter mining was important, for labor was cheap, the physical...sluicing in the summer) and consequently this form of mining has decreased. It is estimated that the winter |
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| 1592-1618 Geologyand Mineralization of the Ambler District, NorthwesternAlaska MURRAY W. HITZMAN, ChevronResourcesCompany...Hunt, Ware and Proffett,P.O. Box 111253, Anchorage,Alaska 99511 JEANINEM. SCHMIDT,* Departmentof Applied...Abstract The Ambler district is located along the southernmargin of the BrooksRange, Alaska. Mineral explorationsincethe...explorationsincethe late 1950s in this remote area hasled to the discoveryof a numberof volcanogenic mass...maficvolcanicrocks. Introduction District locationand history River, or foot. Explorationin the area beganin the late |
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| THE OCCURRENCE OF METALLIFEROUS DEPOSITS IN THE YUKON AND KUSKOKWIM REGIONS. By J. B. MERTIE, Jr. INTRODUCTION...Geological Survej7 in Alaska for 25 years, with the primary object of fostering a mining industry in the Territory...objectives is attained by geologic studies in various mining districts to determine the origin, character, and...the mining operator of the present day; that of the second benefits the prospector and the mining operator...the future. Nearly all the developed mining districts in Alaska have been examined by members of the |
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| production and reserve grades source, fineness, mining methods, other economic commodities and general...is useful for analyzing the roles genetics and mining method have on placer grades and volumes. Deposits...varies from area to area. Individual workings are not included if deposit or district data are presented...gold production for the central Brooks Range, Alaska exceeded the total as reported by deposit. -2-...variety of methods and areas in Alaska, including sluice and drift mining. 5. Some volumes were estimated |
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| FINENESS OF GOLD FROM ALASKA PLACERS BY PHILIP S. SMITH Mineral resources of Alaska, 1937 (Pages 147-272)...__-_____Metals other than gold in bullion from Alaska placers________ Descriptions of regions in relation...placer gold Southeastern Alaska region__________________________ Juneau district ____________________ Porcupine...Slate Creek area__________________________ Middle Fork area___________________________ Rainy Creek area___...district_________________________________ Nelchimi district ______________________________ Cook Inlet-Snsitna |
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| Metalliferous Lode Deposits and Placer Districts of Alaska By WARREN j. NOKLEBERG, THOMAS K. BUNDTZEN, HENRY...metalliferous lode deposits and placer districts of Alaska. U.S. Geological Survey Bulletin 1786 Bibliography...No.: 119.3:1786 1. Placer deposits-Alaska. 2. Ore deposits-Alaska. I. Nokleberg, Warren j. II. Series...COVER Mill buildings at Kennecott, Alaska. The Kennecott district Cu-Ag mines in the Wrangell Mountains...deposit description for Kennecott district (number 30 for southern Alaska). Copyrighted drawing used by permission |
 | Jones, James V., Karl, Susan M., Labay, Keith A., Shew, Nora B., Granitto, Matthew, Hayes, Timothy S., Mauk, Jeffrey L., Schmidt, Jeanine M., Todd, Erin, Wang, Bronwen, Werdon, Melanie B., Yager, Douglas B. (2015) GIS-Based Identification of Areas with Mineral Resource Potential for Six Selected Deposit Groups, Bureau of Land Management Central Yukon Planning Area, Alaska. Open-File Report 2015-1021. US Geological Survey doi:10.3133/ofr20151021 | Report (issue) |
| Prepared in cooperation with the Alaska Division of Geological and Geophysical Surveys GIS-Based Identification...Groups, Bureau of Land Management Central Yukon Planning Area, Alaska U.S. Department of the Interior U.S...Geological Survey Prepared in cooperation with the Alaska Division of Geological and Geophysical Surveys...Groups, Bureau of Land Management Central Yukon Planning Area, Alaska By James V. Jones, III, Susan M. Karl...groups, Bureau of Land Management Central Yukon Planning Area, Alaska: U.S. Geological Survey Open-File Report |
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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...district_-_____----_--_-_---_-______________-_ 174 Minook Creek._-______-_-____----_.____________-_ 174 Hunter ..... _. _ _ ____. _. __ 183 Little Minook Junior Creek._______________________ 184 Hoosier Creek____.....________________________ 186 Slate Creek..._--------.-----___....._.___.._.. 187 Ruby Creek_.._.._.-..-.___________ |
 | Selby, D., Kelley, K. D., Hitzman, M. W., Zieg, J. (2009) Re-Os SULFIDE (BORNITE, CHALCOPYRITE, AND PYRITE) SYSTEMATICS OF THE CARBONATE-HOSTED COPPER DEPOSITS AT RUBY CREEK, SOUTHERN BROOKS RANGE, ALASKA. Economic Geology, 104 (3) 437-444 doi:10.2113/gsecongeo.104.3.437 | Journal (article/letter/editorial) |
| CARBONATE-HOSTED COPPER DEPOSITS AT RUBY CREEK, SOUTHERN BROOKS RANGE, ALASKA DAVID SELBY,1,β KAREN D. KELLEY...from the carbonate-hosted Cu deposit at Ruby Creek (Bornite), Alaska, show extremely high Re abundances (hundreds...ages of ore formation for the carbonate-hosted Ruby Creek Cu-(Co) deposit and demonstrate that the Re-Os...and hydrothermal mineralization in the Ambler district. The utility of bornite and chalcopyrite, in addition...permits a refinement of the genetic model for the Ruby Creek deposit. Introduction The recent application |
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| SURVEY Pb-isotope data base for sulfides from Alaska, March, 1987 by S. E. Church*, M. H. Delevaux...Bibliography -for Alaska. ........................... 3O ILLUSTRATIONS Figure 1. Regions of Alaska used in this...report.............. 2 Figure 2. Mining regions and districts of Alaska............. 3 TABLES Table 1...from northern Alaska.. 8 Table 2. Pb-isotope data from sulfides from west-central Alaska...............Pb isotope data from sulfides from east-central Alaska.............................................. |
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| DEPOSITS OF THE RUBY-KUSKOKWIM REGION ALASKA BY J. B. MERTIE, Jr. Mineral resources of Alaska, 1933 (Pages...-__________-___ Ruby district._______-___-____--._-_--.-__---_--__._______ Ruby area.______-_____--_...area____-______.__--_-___--__-_-___-_________ 145 Long Creek and Bear Gulch..____________________ Fifth of July...______________________ Greenstone Creek.._______._________._._-_._.___._ Monument Creek.______________________________...Meketchum Creek._______________________________ Trail Creek____.________________________ Flint Creek and tributaries |
