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Departkent of the Interior United States Geological Survey
DEPARTKENT OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY OCCURRENCES OF TUNGSTEN MINERALS IN ALASKA Compiled by Edward B. Cobb Open-File Report 82-785 1982 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards. REFERENCE LIST The following references give data, as of May 1, 1982, on localities where tungsten minerals have been found in Alaska. References are keyed by number to locations shown on the accompanying map. An asterisk (*) preceding a locality name indicates recorded production. Localities 93-161 (in the Tanacross quadrangle) and 183-197 (in the Chignik and Sutwik Island quadrangles) are the sites of samples collected during geochemical investigations that were part of the Alaska Mineral Resource Assessment Program (AMRAP). Tungsten minerals were identified during microscopic study of the nonmagnetic fractions of the heavy-mineral concentrates of samples from these localities. In most instances the report(s) cited for each occurrence is a summary of data in older reports and was compiled since 1975. Most of the summary reports contain lists of the reports used in their compilation. Citations are in standard bibliographic format with the exception that each includes, in parentheses, an abbreviation for the report or map series and the number of the report or map. Abbreviations used are: AOF, State of Alaska Division of Geological and Geophysical Surveys Open-File Report; B, U.S. Geological Survey Bulletin; BMOF, U.S. Bureau of Mines Open-File Report; C, U.S. Geological Survey Circular; MF, U.S. Geological Survey Miscellaneous Field Studies Map; OF, U.S. -
Or Early Callovian) Ammonites from Alaska and Montana
Jurassic (Bathonian or Early Callovian) Ammonites From Alaska and Montana By RALPH W. IMLAY SHORTER CONTRIBUTIONS TO GENERAL GEOLOGY GEOLOGICAL SURVEY PROFESSIONAL PAPER 374-C Descr$tions and illustrations of ctphalopods of possible late Middle Jurasric (Bathonian) age UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1962 UNITED STATES DEPARTMENT OF THE INTERIOR STEWART L. UDALL, Secretary GEOLOGICAL SURVEY Thomas B. Nolan, Director For sale by the Superintendent of Documents, U.S. Government Printing Office Washington 25, D.C. CONTENTS Page Page C- 1 Age of the faunas-Continued C- 1 Callovian versus Bathonian in Greenland- - - - _ - - _ - - C-2 Callovian versus Bathonian in Alaska and Montana- -- - Stratigraphic summary- __ --______ _ - - - -- - ---.- -- -.- - - C-2 Paleogeographic considerations- - -_-- -- ---- ---- Cook Inlet region, Alaska -______--------.-.--..--c-2 Summation of the evidence- - - _._ _ - _ _ - - - - - - - - - - - - Iniskin Peninsula-_-_______----.--------~.--C-2 Comparisons with other faunas---------___----------- Peninsula north of Chinitna Bay----- __._ _ _._ - C-3 \Vestern interior of Canada- - - -- -- -____------- --- Talkeetna Mountains ----___-_ - - -- ---- - - -- - -- C-3 Arctic region-_-_---___-_----------------------- Western Montana- - -----__-----------------.---C-5 other regions--__-__-____----------------------- Rocky Mountain front north of the Sun River- (2-5 Geographic distribution ___-___ --- - ---------- ------ -- - Drummond area--- ---_____ _--- -- -.-- ---- -- - C-10 Summary of results- --_-____-_----_---_-_----------- Age ofthe faunas-----------_----------------------- GI0 Systematic descriptions--_ _ _ - _ - - - - - - - - - - - - - - - - - - - - - - - Evidence from Alaska---____________--------------C-10 Literature cited _-_-_---______----------------------- Evidence from Montana --_-_____ --- - - -- .--- --- - - C-12 Index---__--___-_-_------------------------------- ILLUSTRATIONS [Plates 1-3 follow index] PLATE 1. Holcophylloceras, Oecotraustes (Paroecotraustes) ?, and Arctocephalites (Cranocephalites). 2. -
Stock Assessment of Niukluk River Arctic Grayling, 2013. Alaska Department of Fish and Game, Regional Operational Plan ROP.SF.3F.2013.06, Fairbanks
Regional Operational Plan SF.3F.2013.06 Stock Assessment of Niukluk River Arctic Grayling, 2013 by Andrew D. Gryska May 2013 Alaska Department of Fish and Game Divisions of Sport Fish and Commercial Fisheries 1 Symbols and Abbreviations The following symbols and abbreviations, and others approved for the Système International d'Unités (SI), are used without definition in the following reports by the Divisions of Sport Fish and of Commercial Fisheries: Fishery Manuscripts, Fishery Data Series Reports, Fishery Management Reports, and Special Publications. All others, including deviations from definitions listed below, are noted in the text at first mention, as well as in the titles or footnotes of tables, and in figure or figure captions. Weights and measures (metric) General Mathematics, statistics centimeter cm Alaska Administrative all standard mathematical deciliter dL Code AAC signs, symbols and gram g all commonly accepted abbreviations hectare ha abbreviations e.g., Mr., Mrs., alternate hypothesis HA kilogram kg AM, PM, etc. base of natural logarithm e kilometer km all commonly accepted catch per unit effort CPUE liter L professional titles e.g., Dr., Ph.D., coefficient of variation CV meter m R.N., etc. common test statistics (F, t, χ2, etc.) milliliter mL at @ confidence interval CI millimeter mm compass directions: correlation coefficient east E (multiple) R Weights and measures (English) north N correlation coefficient cubic feet per second ft3/s south S (simple) r foot ft west W covariance cov gallon gal copyright degree (angular ) ° inch in corporate suffixes: degrees of freedom df mile mi Company Co. expected value E nautical mile nmi Corporation Corp. -
Pamphlet to Accompany Scientific Investigations Map 3131
Bedrock Geologic Map of the Seward Peninsula, Alaska, and Accompanying Conodont Data By Alison B. Till, Julie A. Dumoulin, Melanie B. Werdon, and Heather A. Bleick Pamphlet to accompany Scientific Investigations Map 3131 View of Salmon Lake and the eastern Kigluaik Mountains, central Seward Peninsula 2011 U.S. Department of the Interior U.S. Geological Survey Contents Introduction ....................................................................................................................................................1 Sources of data ....................................................................................................................................1 Components of the map and accompanying materials .................................................................1 Geologic Summary ........................................................................................................................................1 Major geologic components ..............................................................................................................1 York terrane ..................................................................................................................................2 Grantley Harbor Fault Zone and contact between the York terrane and the Nome Complex ..........................................................................................................................3 Nome Complex ............................................................................................................................3 -
Thermochronology of the Talkeetna Intraoceanic Arc of Alaska: Ar/Ar, U‐Th/He, Sm‐Nd, and Lu‐Hf Dating
TECTONICS, VOL. 30, TC1011, doi:10.1029/2010TC002798, 2011 Thermochronology of the Talkeetna intraoceanic arc of Alaska: Ar/Ar, U‐Th/He, Sm‐Nd, and Lu‐Hf dating B. R. Hacker,1 Peter B. Kelemen,2 Matthew Rioux,1,3 Michael O. McWilliams,4 Philip B. Gans,1 Peter W. Reiners,5 Paul W. Layer,6 Ulf Söderlund,7 and Jeffrey D. Vervoort8 Received 17 September 2010; revised 8 December 2010; accepted 27 December 2010; published 26 February 2011. [1] As one of two well‐exposed intraoceanic arcs, the of the Talkeetna arc was spatially variable. One‐ Talkeetna arc of Alaska affords an opportunity to under- dimensional finite difference thermal models show that stand processes deep within arcs. This study reports new this kind of spatial variability is inherent to intraoceanic Lu‐Hf and Sm‐Nd garnet ages, 40Ar/39Ar hornblende, arcs with simple construction histories. Citation: Hacker, mica and whole‐rock ages, and U‐Th/He zircon and B. R., P. B. Kelemen, M. Rioux, M. O. McWilliams, P. B. Gans, apatite ages from the Chugach Mountains, Talkeetna P. W. Reiners, P. W. Layer, U. Söderlund, and J. D. Vervoort Mountains, and Alaska Peninsula, which, in conjunc- (2011), Thermochronology of the Talkeetna intraoceanic arc of tion with existing geochronology, constrain the thermal Alaska: Ar/Ar, U‐Th/He, Sm‐Nd, and Lu‐Hf dating, Tectonics, history of the arc. Zircon U‐Pb ages establish the 30, TC1011, doi:10.1029/2010TC002798. main period of arc magmatism as 202–181 Ma in the Chugach Mountains and 183–153 Ma in the 1. -
Reconnaissance for Radioactive Deposits in the Darby Mountains, Seward Peninsula, Alaska, 1948
UNITED STATES DEPARTMENT OF THE INTERIOR Douglas McKay, Secretary GEOLOGICAL SURVEY W. E. Wrather, Director GEOLOGICAL SURVEY CIRCULAR 300 RECONNAISSANCE FOR RADIOACTIVE DEPOSITS IN THE DARBY MOUNTAINS, SEWARD PENINSULA, ALASKA, 1948 By Walter S. West This report concerns work done on behalf of the U. S. Atomic Energy Commission and is publhhed with the psnnission of the Commission. Washington. D. C., 1963 Frec on application to the Geolo~icalSurvey, Washington 26, D. C. RECONNAISSANCE FOR RADIOACTIVE DEPOSITS IN THE DARBY MOUNTAINS, SEWARD PENINSULA, ALASKA, 1948 CONTENTS Page Page Abstract ..................................... 1 Geology-Continued Introduction .................................. 1 Mineral deposits.. ...................... 3 Geology ..................................... 2 Radioactivity investigations. .................. 3 Undivided metamorphic rocks. ............ 2 Kachauik Creek-Cheenik Rocks of Paleozoic age.. ................. 2 Creekarea ........................... 4 Greenstone and greenstone schist ......... 2 McKinley Creek-Bryan Creek area ....... 4 Undivided igneous complex ............... 2 Portage Creek-Cape Darby area.. ......... 4 Granite ................................. 2 Norton Bay coastal area between Ungalik conglomerate. ................... 2 Cape Darby and Kwiniuk River ......... 5 Basalt .................................. 3 Kwiniuk River. ......................... 5 Unconsolidated deposits.. ................ 3 'Tubutulik River area.. ................... 6 Hot springs ............................. 3 -
Fishery Management Report for Sport Fisheries in the Yukon Management Area, 2012
Fishery Management Report No. 14-31 Fishery Management Report for Sport Fisheries in the Yukon Management Area, 2012 by John Burr June 2014 Alaska Department of Fish and Game Divisions of Sport Fish and Commercial Fisheries Symbols and Abbreviations The following symbols and abbreviations, and others approved for the Système International d'Unités (SI), are used without definition in the following reports by the Divisions of Sport Fish and of Commercial Fisheries: Fishery Manuscripts, Fishery Data Series Reports, Fishery Management Reports, and Special Publications. All others, including deviations from definitions listed below, are noted in the text at first mention, as well as in the titles or footnotes of tables, and in figure or figure captions. Weights and measures (metric) General Mathematics, statistics centimeter cm Alaska Administrative all standard mathematical deciliter dL Code AAC signs, symbols and gram g all commonly accepted abbreviations hectare ha abbreviations e.g., Mr., Mrs., alternate hypothesis HA kilogram kg AM, PM, etc. base of natural logarithm e kilometer km all commonly accepted catch per unit effort CPUE liter L professional titles e.g., Dr., Ph.D., coefficient of variation CV meter m R.N., etc. common test statistics (F, t, χ2, etc.) milliliter mL at @ confidence interval CI millimeter mm compass directions: correlation coefficient east E (multiple) R Weights and measures (English) north N correlation coefficient cubic feet per second ft3/s south S (simple) r foot ft west W covariance cov gallon gal copyright degree (angular ) ° inch in corporate suffixes: degrees of freedom df mile mi Company Co. expected value E nautical mile nmi Corporation Corp. -
National Wildlife Refuge System Koyukukinowitna
U.S. Department of the Interior '·- . Fish and Wildlife Service NATIONAL WILDLIFE REFUGE SYSTEM KOYUKUKINOWITNA REFUGE COMPLEX Galena, Alaska ANNUAL NARRATIVE REPORT Calendar Year 1995 PEC OLL ARR Y/NNWR 395 __gp~ (!.ou_ tJAil. K~ /~tJco' l~ ANNUAL NARRATIVE REPORT 1995 KOYUKUKNWR NORTHERN UNIT, INNOKO NWR KOYUKUK/NOWITNA NATIONAL WILDLIFE REFUGE COMPLEX Galena, Alaska REVIEW AND APPROVALS AJtLIS . US FISH ~ WILDLIFE SERVICE--ALASKA Alaska Resources Lihrary & In f~Jrmation Services Ubraf\' Building. Sml~ Ill 32l i PNwidcnce Onvc 11111111111111111111111111111111111111111111111111111111111111111111111111111111 }\nchoragc,AJK 99508-t614 3 4982 00022838 6 INTRODUCTION This Annual Narrative Report is for the Koyukuk, Northern Unit of lnnoko and Nowitna Refuges. These three refuges are administered collectively as the Koyukuk/Nowitna Refuge Complex. Narrative items common to all three units are discussed in the Koyukuk and Northern Unit of Innoko report. Any additional events are reported in respective sections. The Koyukuk National Wildlife Refuge (NWR) is located in west central Alaska, about 270 air miles west of Fairbanks and 330 air miles northwest of Anchorage. The exterior boundaries encompass 4.6 million acres. This refuge lies within the roughly circular floodplain basin of the Koyukuk River. The extensive forested floodplain is surrounded by hills 1500' - 4000' to the north, east, and west, and the Yukon River to the south. The Koyukuk NWR was established December 2, 1980 with passage of the Alaska National Interest Lands Conservation Act (ANILCA). The refuge was established and is managed for the following purposes: 1. To conserve fish and wildlife populations and habitats in their natural diversity including, but not limited to, waterfowl and other migratory birds, moose, caribou, furbearers and salmon; 2. -
Yukon-Charley Rivers National Preserve Table of Contents
Annual Report 2008 Yukon-CharleyYukon-Charley RiversRivers NationalNational PreservePreserve National Park Service Department of the Interior There’s a land where the mountains are nameless, And the rivers all run God knows where; There are lives that are erring and aimless, And deaths that just hang by a hair; There are hardships that nobody reckons; There’s a land - oh, it beckons and beckons, And I want to go back - and I will. Robert Service, from The Spell of the Yukon 2 Yukon-Charley Rivers National Preserve Table of Contents Purpose and Significance of Yukon-CharleyRivers National Preserve................................................................4 Map of Yukon-Charley Rivers National Preserve.................................................................................................5 Message from the Superintendent......................................................................................................................6 Performance and Results Section.................................................................................................................7-25 Preserve Resources............................................................................................................................7-20 Public Enjoyment and Visitor Experience.....................................................................................21-25 FY 2008 Financial Summary.............................................................................................................................26 Preserve Organization......................................................................................................................................27 -
Of Gold and Gravel: a Pictorial History of Mining Operations at Coal Creek
OF GOLD AND GRAVEL A Pictorial History of Mining Operations at Coal Creek and Woodchopper Creek, 1934–1938 Yukon-Charley Rivers National Preserve National Park Service Edited and Notes by Chris Allan OF GOLD AND GRAVEL A Pictorial History of Mining Operations at Coal Creek and Woodchopper Creek, 1934–1938 Yukon-Charley Rivers National Preserve Edited and Notes by Chris Allan 2021 Acknowledgments I would like to thank Lynn Johnson, the granddaughter of Walter Johnson who designed the Coal Creek and Woodchooper Creek dredges; Rachel Cohen of the Alaska and Polar Regions Collections & Archives; and Jeff Rasic, Adam Freeburg, Kris Fister, Brian Renninger, and Lynn Horvath who all helped with editing and photograph selection. For additional copies contact: Chris Allan National Park Service Fairbanks Administrative Center 4175 Geist Road Fairbanks, Alaska 99709 Printed in Fairbanks, Alaska Front Cover: View from the pilot house of the Coal Creek gold dredge showing the bucket line carrying gravel to be processed inside the machine. The bucket line could dig up to twenty-two feet below the surface. University of Alaska Fairbanks, Alaska & Polar Regions Collections and Archives, Stanton Patty Family Papers. Title Page Inset: A stock certificate for Gold Placers, Inc. signed by General Manager Ernest N. Patty, November 16, 1935. University of Alaska Fairbanks, Alaska & Polar Regions Collections and Archives, Stanton Patty Family Papers. Back Cover: Left to right: The mail carrier Adolph “Ed” Biederman, his son Charlie, daughter Doris, the trapper and miner George Beck, Ed’s son Horace, and Jack Welch, the proprietor of Woodchopper Roadhouse. The group is at Slaven’s Roadhouse on the banks of the Yukon River posing with a mammoth tusk recovered from a placer mining tunnel. -
Straddling the Arctic Circle in the East Central Part of the State, Yukon Flats Is Alaska's Largest Interior Valley
Straddling the Arctic Circle in the east central part of the State, Yukon Flats is Alaska's largest Interior valley. The Yukon River, fifth largest in North America and 2,300 miles long from its source in Canada to its mouth in the Bering Sea, bisects the broad, level flood- plain of Yukon Flats for 290 miles. More than 40,000 shallow lakes and ponds averaging 23 acres each dot the floodplain and more than 25,000 miles of streams traverse the lowland regions. Upland terrain, where lakes are few or absent, is the source of drainage systems im- portant to the perpetuation of the adequate processes and wetland ecology of the Flats. More than 10 major streams, including the Porcupine River with its headwaters in Canada, cross the floodplain before discharging into the Yukon River. Extensive flooding of low- land areas plays a dominant role in the ecology of the river as it is the primary source of water for the many lakes and ponds of the Yukon Flats basin. Summer temperatures are higher than at any other place of com- parable latitude in North America, with temperatures frequently reaching into the 80's. Conversely, the protective mountains which make possible the high summer temperatures create a giant natural frost pocket where winter temperatures approach the coldest of any inhabited area. While the growing season is short, averaging about 80 days, long hours of sunlight produce a rich growth of aquatic vegeta- tion in the lakes and ponds. Soils are underlain with permafrost rang- ing from less than a foot to several feet, which contributes to pond permanence as percolation is slight and loss of water is primarily due to transpiration and evaporation. -
Background Section
NORTHWEST ARCTIC SUBAREA CONTINGENCY PLAN BACKGROUND SECTION BACKGROUND: PART ONE – SUPPORT INFORMATION ............................................................................. E‐1 A. SUBAREA PLAN ................................................................................................................................... E‐1 B. SUBAREA DESCRIPTION ..................................................................................................................... E‐1 C. AREA OF RESPONSIBILITY .................................................................................................................. E‐6 D. REGIONAL STAKEHOLDER COMMITTEE ............................................................................................. E‐7 E. SUBAREA COMMITTEE ....................................................................................................................... E‐9 BACKGROUND: PART TWO – RESPONSE POLICY & STRATEGIES ............................................................. E‐11 A. FEDERAL RESPONSE ACTION PRIORITIES/STRATEGIES .................................................................... E‐11 B. STATE OF ALASKA RESPONSE PRIORITIES ........................................................................................ E‐12 BACKGROUND: PART THREE ‐ SUBAREA SPILL HISTORY, OIL FATE & RISK ASSESSMENT ......................... E‐13 A. NAVIGABLE WATERS SPILL HISTORY ................................................................................................ E‐13 B. INLAND SPILL HISTORY ....................................................................................................................