 | | Report (issue) | | 1)+%#. 5748'; ,WPGCW #NCUMC Alaska Resource Data File Juneau quadrangle Descriptions of the mineral...throughout Alaska. o o o o o o o o Distribution of mineral occurrences in the Juneau 1:250,000-scale...000-scale quadrangle, Alaska This and related reports are accessible through the USGS World Wide Web site...authored by: John C. Barnett and Lance D. Miller Juneau, AK This report is preliminary and has not been...the U.S. Government. OPEN-FILE REPORT 03-456 Alaska Resource Data File JU001 Site name(s): Unnamed |  | Goldfarb, Richard J., Newberry, Rainer J., Pickthorn, William J., Gent, Carol A. (1991) Oxygen, hydrogen, and sulfur isotope studies in the Juneau gold belt, southeastern Alaska; constraints on the origin of hydrothermal fluids. Economic Geology, 86 (1) 66-80 doi:10.2113/gsecongeo.86.1.66 | Journal (article/letter/editorial) | | Departmentof Geologyand Geophysics, Universityof Alaska,Fairbanks,Alaska99775-0760 WILLIAM J. PICKTHORN...most likelyof metamorphic origin.Valuesof bD for muscovite, biotite,andhornblendefromcountry rocks,aswell...locatedapproximately125 km inboardof the Gulf of Alaska and about 20 km west of the Coast batholith. Placergold...0361-0128/91/1171/66-1553.00 66 and ore petrographyat the Alaska-Juneau mine, the largestproduceralongthe goldbelt, were...y investigationsindicate that the ore fluids JUNEAU AuBELT:O, H, & SSTUDIES were low-salinity H20-CO2-CH4-N2-H2S |  | | Report (volume) | | SMITH, DIEECTOB GEOLOGY OF THE BERBERS BAY REGION ALASKA BY ADOLPH KNOPF WASHINGTON GOVERNMENT PRINTING...age. ..................................... .'. Jualin diorite..........................................38 Ivanhoe mine.......................................................... 38 Horrible mine..............39 Bear mine. ............................................................ 39 Kensington mine........... 40 Eureka mine. .............................................. ^.......... 42 Comet mine........... |  | Miller, Lance J., Goldfarb, Richard J., Snee, Lawrence W., Gent, Carol A., Kirkham, Richard A. (1995) Structural geology, age, and mechanisms of gold vein formation at the Kensington and Jualin deposits, Berners Bay District, Southeast Alaska. Economic Geology, 90 (2) 343-368 doi:10.2113/gsecongeo.90.2.343 | Journal (article/letter/editorial) | | Formationat the KensingtonandJualinDeposits,BernersBay District, SoutheastAlaska LANCE D. MILLER,* Departmentof...RICHARD A. KIRKHAM EchoBayAlaska,3100 ChannelDrive,Juneau,Alaska99801 Abstract The BernersBaydistrictat...Presentaddress: EchoBayAlaska,3100 ChannelDrive,Juneau, Alaska99801. 0361-0128/95/1677/343-2654.00 343...which to studythe evolution of a mesothermal vein district. The BernersBayminingdistrict(Fig. 1) islocatedat...mesothermalquartz veinsin the Juneaugold belt. Mining activity in the BernersBay districtbeganin the |  | | Journal (article/letter/editorial) | | data on hydrogen isotope fractionation between muscovite and water at low temperatures ( < 400 ~ A fractionation...available both from fluid inclusions and alteration muscovite/sericite, support the Bowers and Taylor (1985)...hydrothermal alteration: commonly quartz for 6180 and muscovite/sericite for ~D. The 6 value of the alteration...hydrogen-isotope fractionation calibrations for muscovite-water at the typical temperatures of formation...the Bowers and Taylor (1985) calibration for muscovite-water is more consistent with 6D values analysed |  | | Report (volume) | | 800 GEOLOGY AND MINERAL DEPOSITS OF SOUTHEASTERN ALASKA BY A. F. BUDDINGTON AND THEODORE CHAPIN !....Theodore Chapin.___ _________ Notes on history of mining development- _____-______----__--____ Geography...distribution________________________________ Ketchikan district.._______________________________________ Vicinity..._.._ Page 45 49 49 52 57 59 60 66 68 68 Juneau district..... ____________--___-____-_-. Schistose greenstone...greenstone and phyllite between Port Houghton and Juneau... . __>-______________________--_____-_-_ Age |  | | Report (issue) | | MINING IN SOUTHEASTERN ALASKA. By ADOLPH KNOPF. INTRODUCTION. The condition of the mining industry of...of southeastern Alaska during 1909. gaged by the production of gold, silver, and copper, remained substantially...notably at the Treadwell group and at the Perseverance mine. The final settlement of the protracted litigation...opment of that important district. The building of the government trail from Juneau to Eagle River and the...stimulate the interest of the prospector in the Juneau gold belt. All these facts point to a considerable |  | | Report (volume) | | BULLETIN 502 THE EAGLE RIVER REGION SOUTHEASTERN ALASKA BY ADOLPH KNOPF WASHINGTON GOVERNMENT PRINTING...................................... Eagle Kiver mine.............................................................................................. 48 Alaska-Washington property..............................of ore deposits in the northern portion of the Juneau gold belt................................. ^.....56 PREFACE. By ALFRED H. BROOKS. Southeastern Alaska was the first part of the Territory investigated |  | Wells, D.E., Pittman, T.L., Brew, D.A., Douglass, S.L. (1986) Map and description of the mineral deposits in the Juneau, Taku River, Atlin, and part of the Skagway quadrangles, Alaska. Open-File Report Vol. 1986 (85-717) US Geological Survey doi:10.3133/ofr85717 | Report (issue) | | DEPOSITS IN THE JUNEAU, TAKU RIVER, ATLIN, AND PART OF THE SKAGWAY QUADRANGLES, ALASKA BY D. EDWARD WELLS...of Mines, Juneau, U.S. Geological Survey, Menlo Park, CA 94025; Present address 89861 Alaska Park, CA...DEPOSITS IN THE JUNEAU, TAKU RIVER, ATLIN, AND PART OF THE SKAGWAY QUADRANGLES, ALASKA By D. Edward Wells...prospects, mineral occurrences, and mining claims in the Atlin, Juneau, Taku River, and part of the Skagway...groups. The descriptions are in this order: Atlin, Juneau, Skagway, Taku River. The symbol at each site is |  | | Report (volume) | | GOLD BELT, ALASKA BY ARTHUR C. SPENCER AND A RECONNAISSANCE OF ADMIRALTY ISLAND, ALASKA BY WASHINGTON...PRINTING 1906 OFFICE CONTENTS. THE JUNEAU GOLD BELT, ALASKA, BY ARTHUR C: SPENCER. Page Introduction............................... Topography of the Juneau belt....................................................................................... 6 Juneau map.............................................................. 7 Climate of southeastern Alaska......................................... -^ 7 Timber |  | | Report (volume) | | 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 |  | 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 |  | | Report (volume) | | SMITH, DIRECTOR BULLETIN 504 THE SITKA MINING DISTRICT ALASKA BY ADOLPH KNOPF WASHINGTON GOVERNMENT...Gate mine____:_____________________ Hirst Cove Mining Co__ - _________________________'. _ Other prospects________... The gypsum deposit____________________________ Mine developments___________________________ Market ...Geologic reconnaissance map of the Sitka and Juneau mining districts __________________________________...H. BROOKS. The first attempt at lode gold mining in Alaska was made near Sitka in 1871 but was soon abandoned |  | | Report (issue) | | MINERAL INVESTIGATIONS IN SOUTHEASTERN ALASKA By A. F. BTJDDINGTON FIELD WORK Since 1921 the writer...southeastern Alaska. The field work in 1921 and 1922 was devoted chiefly to the Wrangell district. A part...believed, is of immediate practical value to the mining industry. For this reason it is here presented...understanding of the occurrence of ores in the district examined is by no means complete. Therefore, the...with the gold and silver deposits of the Hyder district and the copper and nickel ores of Chichagof and |  | | Report (volume) | | Coast Plutonic-Metamorphic Complex, Near Juneau, Southeastern Alaska AVAILABILITY OF BOOKS AND MAPS OF THE...to Superintendent of Documents.) • ANCHORAGE, Alaska--4230 University Dr., Rm. 101 • LAKEWOOD, Colorado-Federal...the U.S. Geological Survey offices: • FAIRBANKS, Alaska-New Federal Building, 101 Twelfth Ave. • ROLLA...SPACE CENTER, Mississippi-Bldg. 3101 Residents of Alaska may order maps from U.S. Geological Survey, Earth...Coast Plutonic-Metamorphic Complex, Near Juneau, Southeastern Alaska By Glen R. Himmelberg, David A. Brew |  | | Report (issue) | | deposit. Table 4, part B, gives an alphabetic list of mine and properties followed by the deposit name. CHARACTERISTICS...deposits used in Table 1 may represent a major mine, district name, or local town name or other prominent... Pyrrhotite appears to be been reported in just a single mine in the East Belt of the Sierra Nevada foothills...(Malcolm, 1912), galena was widely considered by mine operators to be correlated with better gold grades...was described in a carbonate quartz veinlet in one mine in the Mother Lode system (Knopf, 1929). Method |  | Groves, David I, Goldfarb, Richard J, Knox-Robinson, Carl M, Ojala, Juhani, Gardoll, Stephen, Yun, Grace Y, Holyland, Peter (2000) Late-kinematic timing of orogenic gold deposits and significance for computer-based exploration techniques with emphasis on the Yilgarn Block, Western Australia. Ore Geology Reviews, 17 (1) 1-38 doi:10.1016/s0169-1368(00)00002-0 | Journal (article/letter/editorial) | | DenÕer Federal Center, DenÕer, Colorado, 80225 USA c Terra Sancta, Unit 6, 4 Brodie Hall DriÕe, Bentley...deposits Že.g., Charters Towers, Australia; Ryan Lode, USA; Mokrsko, Czech Republic; Vasil’kovskoye, Kazakhstan...Ferrifero, Brazil; Homestake, Northern Black Hills, USA.. 2.2. Deposit mineralogy and alteration The orogenic...Crown, Hill 50 in Western Australia and Alaska-Juneau, SE Alaska, USA.. Gold:silver ratios range from 10 Žnormal...having been in the 5–30 grt range; modern-day bulk-mining methods have led to exploitation of lower grade |  | | Report (issue) | | systematic investigation of the mineral resources of Alaska by the Geological Survey has yielded a large amount...geologic features of the metalliferous deposits of Alaska, using the results obtained by the many geologists...purely scientific results which have been achieved. Alaska is rich in metallic wealth. Its lode' and placer...The rapid advance of the mining 1 Brooks, A. H., The coal resources of Alaska: Twenty-second Ann. Kept... The Alaska coal fields: Bull. U. S. Geol. Survey No. 314,1907, pp.40-46 Brooks, A. H., Alaska coal and |  | | Report (issue) | | /, 'J GEOLOGI C? THE ALASKIr-JUnSAH UHB 8131X11 ALASKA ropcrt la prolialcasry ecd haa not boon edited...changea ------ 159 Mlnoraloglcul ohangoa - - - - 161 Mining and milling ------- 165 Bibliography -----------...tenperaturo and precipitation, Junoau t Alaska Yearly production, Alaska- Juneau lode ayateia - Attitude of boddlng...cleavage, Junoau area, Alaska - Attitude of bedding and cleavage, Alaaka- Juneau mine, Alaoka - Attitude...linoatlon and axoa of drug foldo, Alaoka- Juneau oiino, Alaska - Attitude of Jolnta In slate and aetagabbro |  | | Report (issue) | | SURVEY METALLIC MINERAL DEPOSITS OF SOUTHEASTERN ALASKA BY Henry C. Berg, John E. Decker, and Beth S....selected nonmetallic mineral deposits in southeastern Alaska........................................................................................... 37 Juneau quadrangle.......................................128 METALLIC MINERAL DEPOSITS OF SOUTHEASTERN ALASKA By Henry C. Berg, John E. Decker, and Beth S....mineral deposits publically known in southeastern Alaska in 1980. This report is part of a regional metal |  | | Report (volume) | | Metalliferous Lode Deposits of Alaska By HENRY C. BERG and EDWARD H. COBB . G E O L O G I C A L S...A n inventory of the mines and )- grosfiects of Alaska and their ' f geologic settings UNITED STATES...acknowledgments--- - - - - - ----- - - - -- - -- 4 Alaska Peninsula region- - - - - - - - -- - - - - - -...- - - _ - - - _ - - - - - - - - - - 16 Redoubt district--- - - - - - - - - - - - - - - - - - - - - - -...antimony and molybdenum- - - - - - 29 Willow Creek district . . . . . . . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | 964, Denver Federal Center, Denver, CO 80225-0046, USA SC b State Key Laboratory of Geological Processes...literature. Carlintype gold deposits in Nevada, USA, although characterized by aqueous-carbonic fluids...2002). The RIRGD include the Fort Knox deposit in Alaska, the generally subeconomic deposits of adjacent...by Na>K>>Mg and Ca, although precipitation of muscovite or K-feldspar from such a fluid will be NU favored...hydrothermal clays may exist along with sericite/muscovite as important silicate alteration phases, minor |  | Groves, D. I., Goldfarb, R. J., Robert, F., Hart, C. J. R. (2003) Gold Deposits in Metamorphic Belts: Overview of Current Understanding,Outstanding Problems, Future Research, and Exploration Significance. Economic Geology, 98 (1) 1-29 doi:10.2113/gsecongeo.98.1.1 | Journal (article/letter/editorial) | | relatively low gold grades (≤1–2 g/t Au); and district-scale zoning to Ag-Pb-Zn deposits in distal zones...alteration assemblages (carbonate to diopside, muscovite to biotite/phlogopite) and metal associations...zoning Cryptic lateral and vertical zoning Strong district-scale zoning; Au-W/Sn-Ag/Pb/Zn Variable, but...midcrustal granitoids High-level granitoids in gold district Early igneous heat source?; later deep crustal/lithosphere...Pine Creek - Tanami, Australia 40 Trans-Hudson, USA 45 Quadrilatero Ferrifero, Brasil Gold resource |  | Brew, David A., Drew, L.J., Schmidt, J.M., Root, D.H., Huber, D.F. (1991) Undiscovered locatable mineral resources of the Tongass National Forest and adjacent lands, southeastern Alaska. Open-File Report Vol. 1991 (91-10) US Geological Survey doi:10.3133/ofr9110 | Report (issue) | | NATIONAL FOREST AND ADJACENT LANDS, SOUTHEASTERN ALASKA By David A. Brew U.S. Geological Survey, MS 904...of reference materials pertinent to southeastern Alaska as a whole and to the individual fifteen 1:250...ILLUSTRATIONS FIGURES Figure 1. Map of southeastern Alaska, showing location of Tongass National Forest lands...status, U.S. National Park Service lands, State of Alaska, Sealaska Native Corporation, and private lands...and other sources. Figure 2. Map of southeastern Alaska, showing 1:250,000-scale quadrangles and major |  | | Report (volume) | | Center, Box 25286 Denver, CO 80225 Residents of Alaska may order maps from U.S. Geological Survey, Map...Ave., Box 12 Fairbanks, AK 99701 • ANCHORAGE, Alaska-4230 University Dr., Rm. 101 • LAKEWOOD, Colorado-Federal...the U.S. Geological Survey offices: • FAIRBANKS, Alaska-New Federal Building, 101 Twelfth Ave. • ROLLA... Mississippi-Bldg. 3101. Geologic Studies in Alaska by the U.S. Geological Survey, 1992 CYNTHIA DUSEL-BACON.... . NORTHERN ALASKA Late Holocene Longitudinal and Parabolic Dunes in Northern Alaska: Preliminary Interpretations |
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