 | | Report (issue) | | in the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula by Frederic H. Wilson 1, Willis H. White...in the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula .............. after 2 PM001 ..........in the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula . ................ 119 Table 3. List...in the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula ................. 122 References cited...in the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula by Frederic H. Wilson, Willis H. White |  | | Report (volume) | | GEOLOGY AND MINERAL RESOURCES OF PARTS OF THE ALASKA PENINSULA BY WALLACE W. ATWOOD WASHINGTON GOVERNMENT...........................................'... 66 Unga formation ........................................Glaciation of Unga Island..................................... .... 85 Glaciation of Popof Island............Popof Island...................................................... 123 124 125 125 Unga Island .......................................... ^ Unalaska Island........ i..................................... |  | | Report (issue) | | topographic and geologic map of part of Latouche Island. A report on the general geology and mineral resources...of the claim on which is now situated the Ellamar mine. Prospecting was especially active from 1903 to...undertaken except at some properties on Knight Island, on Fidalgo Bay, and in the vicinity of Copper...reconnaissance from Resurrection Bay to the Tanana River, Alaska, in 1898 Twentieth Ann. Rept. U. S. Geol. Survey...Prince William Sound and the Copper River district, Alaska, in 1898: Twentieth Ann. Rept. U. S. Geol. Survey |  | | Report (issue) | | of basalt and either phonolite or rhyolite and dacite, and the ash-flow plains are largely rhyolitic... As for KAS, but rocks are mainly andesite and dacite, with rhyolite and some basalt. Composite volcano;...mainly andesite, with some basalt, rhyolite, and dacite. Composite volcano; caldera is major collapse...mainly andesite, with some basalt, rhyolite and dacite. Composite volcano; crater only enlarged conduit...enlarged vent or conduit. HOMOGENETIC VOLCANOES East Seamount Pacific Basin-P Taxonoraic Criteria and |  | | Report (volume) | | Stepovak Bay, and Simeonof Island Quadrangles, Alaska Peninsula, Alaska U.S. GEOLOGICAL SURVEY BULLETIN... Stepovak Bay, and Simeonof Island Quadrangles, Alaska Peninsula, Alaska ByJ.G. Frisken Porphyry copper-... Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula, Alaska / by J.G. Frisken. p. cm. (U...index. 1. Ore deposits Alaska Alaska Peninsula. 2. Geochemistry Alaska Alaska Peninsula. I. Title. II...and geologic setting 1 Mineral occurrences on the Alaska Peninsula 3 Mineral deposits of the Port Moller |  | | Report (issue) | | Adjacent Parts of the Naknek and Afognak Quadrangles, Alaska Peninsula AVAILABILITY OF BOOKS AND MAPS OF THE...Epicenters) can be obtained ONLY from the • ANCHORAGE, Alaska-Rm. 101, 4230 University Dr. • LAKEWOOD, Colorado-Federal...810, Federal Center Denver, CO 80225 Residents of Alaska may order maps from U.S. Geological Survey, Earth...following U.S. Geological Survey offices: • FAIRBANKS, Alaska-New Federal Bldg., 101 Twelfth Ave. • ROLLA, Missouri-1400...Adjacent Parts of the Naknek and Afognak Quadrangles, Alaska Peninsula By J.R. Riehle, S.E. Church, R.L. Detterman |  | | Journal (article/letter/editorial) | | Geophysics,Universityof Wyoming,Laramie, WY 82071, USA Received October 4, 1990/AcceptedJuly 18, 1991 Abstract...centers of the modern central Aleutian arc, Seguam Island developed on strongly extended arc crust. K-Ar... Increasing whole-rock FeO*/MgO from basalt to dacite, the anhydrous Plag + O1 + Cpx + Opx _+ Mt phenocryst...+ 5.8 to + 6.7) are among the lowest from the Aleutians. St, Nd, and Pb ratios are *Present address: Department...Southern Methodist University,Dallas, TX 75275, USA Offprint requests to: B. S. Singer virtually constant |  | Myers, James D., Marsh, Bruce D., Frost, Carol D., Linton, Jennifer A. (2002) Petrologic constraints on the spatial distribution of crustal magma chambers, Atka Volcanic Center, central Aleutian arc. Contributions to Mineralogy and Petrology, 143 (5) 567-586 doi:10.1007/s00410-002-0356-7 | Journal (article/letter/editorial) | | Harbor Series, are a suite of basaltic andesite to dacite flows, pyroclastic rocks and lahars of presumed...volcanic centers. Atka lavas range from basalt through dacite, with all major volcanic vents erupting lavas spanning...Geophysics, University of Wyoming, Laramie, WY 82071, USA E-mail: magma@uwyo.edu B.D. Marsh Department of Earth...The Johns Hopkins University, Baltimore, MD 21218, USA reaction rims and abundant glass inclusions which...Volcano suite suggest formation of the basalt to dacite suite by crystal fractionation of an anhydrous |  | | Journal (article/letter/editorial) | | isotope composition of orange and black glasses in Apollo 17 drive tube 7400211 II “. 491 M. A. WX..%IN...The chemistry of geothermal waters in Iceland. II. Mine~I equilibria and in~~ndent variables cont~lljng...South Sandwich Island volcanic rocks and their bearing on magmagenesis in intra-oceanic island arcs 817 ...HYDES:Distribution of aluminium in waters of the North East Atlantic 25”N to 35”N 963 967 Critical Comment...Processes controlling metal ion attenuation in acid mine drainage .., .., ., ., streams . . . . . . . . |  | | Report (issue) | | and trenches at the Shumagin gold deposit, Unga Island, Alaska by Willis H. White^ and Lawrence D. Queen^...Survey, Anchorage, Alaska 99508-4667 ^Formerly Resident Geologist, Alaska Apollo Gold Mines Ltd. Present...and trenches at the Shumagin gold deposit, Unga Island, Alaska By Willis H. White and Lawrence D. Queen...Baralof Bay on Unga Island south of the Alaska Peninsula 13 km southeast of Sand Point, Alaska, and about...the data of Atwood (1911). During 1983-1987, Alaska Apollo Gold Mines Ltd. explored the Shumagin deposit |  | 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) | | 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....13'09798] COVER Mill buildings at Kennecott, Alaska. The Kennecott district Cu-Ag mines in the Wrangell...southern Alaska). Copyrighted drawing used by permission of Gail Niebrugge, artist, Glennallen, Alaska. PREFACE |  | | Journal (article/letter/editorial) | | (Radulescu, D., et al.) 14 1 70 Basalt, K/Ar, Alaska, Nunivak Island (Cox, Allan, et al.) 3 2 173 Basalt, K/Ar...K/Ar, Pliocene, Pacific Ocean, Norfolk Island, Philip Island (McDougall, lan, et al.) 14 3 367 Basalt...~salt, quartz diorite, dacite, rhyolite, whole rock, K/Ar, data, volcanism, island arcs, Tertiary, West...al.) 5 3 148 Igneous rocks, dacite, minerals, biotite, Ar/Ar, data, island arcs, evolution, plate tectonics...basalt, K/Ar, Quaternary, Indian Ocean, Saint Paul Island (Watkins, N. D., et al.) 24 3 377 Igneous rocks |  | | Report (issue) | | mines, prospects and mineral occurrences throughout Alaska. Distribution of mineral occurrences in the Unalaska...Unalaska l:250,000-scale quadrangle, Aleutian Islands, Alaska This and related reports are accessible through...OPEN-FILE REPORT 96-270 Alaska Resource Data File Site: Amaknak Island At least one of these quartz...1.6 km south of Dutch Harbor airport on Amaknak Island and corresponds to locality 1 of Cobb (1972, MF-446);... Bie; Damon Bickerstaff, F.H. Wilson Page 2 Alaska Resource Data File Reporter affiliation: USGS |  | | Report (issue) | | MINERAL RESOURCES OF ALASKA, 1916. By ALFRED H. BROOKS and others. PREFACE. By ALFRED H. BROOKS. This...bulletins 1 treating of the mining industry of Alaska and summarizing the results achieved during the...data. Those who have thus aided include the many mine operators who have made reports on production as...542,592,622, and 642. 1 2 MINERAL RESOURCES OF ALASKA, 1916. mineral producers who fail to respond to...other officers of the Mint; the officers of the Alaska customs service; Wells Fargo Express Co.; Thomas |  | | Journal (article/letter/editorial) | | magmas: implications for Ti-Nb-Ta depletion in island-arc basalts F.J. Ryerson 1 and E.B. Watson 2...property of the source region. We suggest that the island-arc source region has been depleted in Nb and Ta...depletion of Nb relative to Th in the source regions of island-arc magmas occurs during hybridization of the source...and Pb isotopic compositions of IAB and oceanic island basalts (OIB), a number of workers have attributed...over a temperature and pressure range relevant to island arc volcanism. These data, along with those from |  | | Report (volume) | | Adjacent Parts of the Afognak and Naknek Quadrangles, Alaska U.S. GEOLOGICAL SURVEY BULLETIN 2020 Interpretation...Adjacent Parts of the Afognak and Naknek Quadrangles, Alaska By S.E. Church, J .R. Riehle, and R.J. Goldfarb...data for the mineral resource assessment of this Alaska Mineral Resource Assessment Program (AMRAP) study...adjacent parts of the Afognak and Naknek quadrangles, Alaska I by S.E. Church, J.R. Riehle, and R.J. Goldfarb...mineral resources-Alaska. 2. Mining geologyAlaska 3. Geochemical prospecting-Alaska I. Riehle, J.R. II |  | | Report (issue) | | ON AN APPRAISAL OF THE URANIUM POSSIBILITIES OF ALASKA* By Helmuth Wedow9 Max G 0 White, and Robert M0...authors 7 opinions of the uranium possibilities of Alaska through March 1951 S the date of the completion...32 33 37 37 UO Ul U5 U5 U7 U7 U9 Southeastern Alaska. ................. Bastern border belt ..........52 55 . 5§ 53 59 60 62 63 Alaska Bailroad-Iliamna region ............ Alaska Range .....................districts' ......... 79 Urgnium possibilities of the .Alaska, RailroadIliaznna region ................ 80 Lower |  | | Report (issue) | | increase related to serpentinization, Union Bay, Alaska, by A. L. Clark and W. R. Greenwood . . . . . ...Thrust faults, Annette-Gravina area, southeastern Alaska, by H. C. Berg . . . . . . . . . . . . . . . ....crust in the Upper Chulitna district, west-central Alaska Range, by A. L. Clark, S. H. B. Clark, and C. C... Franklin and Romanzof Mountains, northeastern Alaska, by B. L. Mamet and A. K. Armstrong . . . . . ...ultramafic complexes of southern and southeastern Alaska, by A. L. Clark and W. R. Greenwood . . . . . |  | | Journal (article/letter/editorial) | | Institute of Technology, Pasadena, CA 91125 USA October 22, 1981; accepted in revised form March...descriptions 63OSi t * ‘74 ( )’ P Sample Mariana Island Arc: la lb 2 3 4 5 -0.6 -0.4 6 7 8 -0.4 -0.5...basalt, andesite, Sarigan (+;.?i (16 i: Mariana Island Arc: seamounts (DIXON, i'i'iii) Qa 9b 10 11 12...basaltic andesite flc:wtop base, $9 basaltic andesite dacite andesite basalt, glassy rind interior, t'3 basaltic...basalt basalt andesite andesite dacite dacite dacite dacite dacite dacite (3) 0.0 0.0 0.0 -0.2 +0.2 (t7 |  | | 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 mining 1 Brooks, A. H., The coal resources of Alaska: Twenty-second Ann. Kept. U. S. Oeol. Survey, pt... The Alaska coal fields: Bull. U. S. Geol. Survey No. 314,1907, pp.40-46 Brooks, A. H., Alaska coal and |  | | Journal (article/letter/editorial) | | it. The oldest unaltered glass reported from the USA is of Triassic age (Brew & Muffler 1966; Robinson...volcanic glass occurs in a 'toscanitic pitchstone' (dacite) of the Nerong Volcanics which crops out over an...by Simons (1962) for Cretaceous glass in Arizona, USA. Sussmilch and Greig (1928) attributed the distribution...and two related volcanic glasses (rhyolite and dacite) has been reported by Joplin (1963, tables Ha50...anomalously young age determination of glass from Montana, USA, to argon loss from the glass. OTHER GLASS OF CARBONIFEROUS |  | | Book | | Sciences Board and Oakes College Santa Cruz, CA 95064, USA Volumes 1 to 9 in this series appeared under the...that potash contents of andesites increase across island arcs. By temperament VI Preface and age I prefer...active continental margin plate boundary ARC island arc plate boundary ATL Atlantic of passive continental...convergent plate boundary (e.g., does Colorado, USA, qualify?). These and other problems cause difficulty...distinguishing andesite from basalt and dacite. Andesite and dacite have been distinguished for over a century |  | | Report (volume) | | Synopsis of the Mineral Resources and Geology of Alaska GEOLOGICAL 1 SURVEY BULLETIN 1307 Synopsis... Synopsis of the Mineral Resources and Geology of Alaska By EDWARD H. COBB GEOLOGICAL SURVEY BULLETIN 1307...with the Department of Natural Resources, State of Alaska UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON:...Introduction _________________________________ Alaska Peninsula region ___________________________ Aleutian..._________ Northern Alaska region ____________________________ Northwestern Alaska region _^_______________________ |  | | Report (issue) | | ...•.....••.•..... Alaska .....•............•.....••.........•.. Northern Alaska •....••.•..........••...••....... West-central Alaska .••••...•...•..•......•... East-central Alaska •...••..••.••......•..•...•... Southwestern Alaska ..••••...•.•.•.•..•..•.• Southern Alaska .•.•.••..•....•..•.........• Southeastern...Southeastern Alaska ..••.•.•...••.•.•.....••. Puerto Rico ...•...•.••••••...•.•..•.......... Geologic maps....................... . California . .. .. .. . Alaska Worldwide ~d·i~~;~;~~~~·s~die~.:::::::::::::::: |
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