 | | Report (volume) | | Parts of Kuiu and < Kupreanof Islands Southeastern Alaska -3 , By L. J. PATRICK MUFFLER ' CONTRIBUTIONS....._.______._._..._...____.._....____.... Burnt Island Conglomerate.________________________________ Cornwallis...___--------Hamilton Island Limestone.__________-_____--_____--------Hound Island Volcanics__________...neighboring parts of Kuiu and Kupreanof Islands, Alaska.____________ In pocket 1. Index map showing location...other recently studied nearby areas in southeastern Alaska. _____-------------------- ------------_-C3 2-5 |  | | Report (issue) | | the Skagway 1:250,000 quadrangles, southeastern Alaska By David A. Brew 1 and Arthur B. Ford 1 Open-File...exposures 1n Gambier and Pybus Bays on Admiralty Island; extended to the Keku Islets area and redefined...currently included in Phyllite, etc., unit). "E? hh Hound Island Volcanics Basaltic pillow breccia and pillow...limestone; outcrops extensively on northern Admiralty Island. ^ hp Phyllite, Limestone, Slate and Chert Unnamed...here referred to as the Hound Island Volcanics on northern Admiralty Island. PRELIMINARY RECONNAISSANCE |  | | Report (issue) | | Preliminary reconnaissance geologic map of the Petersburg and parts of the Port Alexander and Sumdum 1:250...1:250,000 quadrangles, southeastern Alaska By David A. Brew , A. Thomas Ovenshine , Susan M. Karl , and...Virginia ^Anchorage, Alaska Preliminary reconnaissance geologic map of the Petersburg and parts of the...and Sumdum 1:250,000 quadrangles, southeastern Alaska By David A. Brew, A. T. Ovenshine, Susan M. Karl...Alexander, Gravina (including the Duncan Canal-Zarembo Island-Screen Islands sub-belt), and Mainland. The Alexander |  | | Report (issue) | | RECONNAISSANCE GEOLOGIC MAP OF THE PETERSBURG C-4 QUADRANGLE, SOUTHEASTERN ALASKA Open-File Report 97-156-J...Reconnaissance Geologic Map of the Petersburg C-4 Quadrangle, Southeastern Alaska By David A. Brew1 Open-File... RECONNAISSANCE GEOLOGIC MAP OF THE PETERSBURG C-4 QUADRANGLE, SOUTHEASTERN ALASKA By David A. Brew INTRODUCTION...were prepared specifically as part of the State of Alaska Division of Geological and Geophysical Surveys...Management Alaska Minerals Section (Juneau, Alaska) mineral-resource studies of part of the Petersburg, Alaska |  | | Report (issue) | | RECONNAISSANCE GEOLOGIC MAP OF THE PETERSBURG D-5 QUADRANGLE, SOUTHEASTERN ALASKA Open-File Report 97-156-M...Reconnaissance Geologic Map of the Petersburg D-5 Quadrangle, Southeastern Alaska By David A. Brew1 Open-File...RECONNAISSANCE GEOLOGIC MAP OF THE PETERSBURG D-5 QUADRANGLE, SOUTHEASTERN ALASKA By David A. Brew INTRODUCTION...Geological Survey specifically as part of the State of Alaska Division of Geological and Geophysical Surveys...Management Alaska Minerals Section (Juneau, Alaska) mineral-resource studies of part of the Petersburg, Alaska |  | | Report (issue) | | Reconnaissance Geologic Map of the Petersburg A-3 Quadrangle, Southeastern Alaska By David A. Brew1 Open-File... RECONNAISSANCE GEOLOGIC MAP OF THE PETERSBURG A-3 QUADRANGLE, SOUTHEASTERN ALASKA By David A. Brew INTRODUCTION...Geological Survey contribution to the joint State of Alaska Division of Geological and Geophysical Surveys...Management Alaska Minerals Section (Juneau, Alaska) mineralresource studies of part of the Petersburg, Alaska...information on known mineral deposits in the whole Petersburg/Wrangell area was released previously (Grybeck |  | Douglass, S.L., Webster, J.H., Burrell, P.D., Lanphere, M.A., Brew, D.A. (1989) Major-element chemistry, radiometric ages, and locations of samples from the Petersburg and parts of the Port Alexander and Sumdum quadrangles, southeastern Alaska. Open-File Report Vol. 1989 (89-527) US Geological Survey doi:10.3133/ofr89527 | Report (issue) | | from the Petersburg and parts of the Port Alexander and Sumdum quadrangles, southeastern Alaska By Susan...from the Petersburg and parts of the Port Alexander and Sumdum quadrangles, southeastern Alaska..........32 3. Potassiurn-argon determinations in the Petersburg and parts of the Port Alexander and Sumdum 1:250...1:250,000 quadrangles, southeastern Alaska..............................................................geochemical and radiometric age samples in the Petersburg and parts of the adjacent Port Alexander and |  | | Book (edition) | | Connor T)aniel O’Haire ROADSIDE VJTeology of Alaska Cathy Connor Daniel O’Haire MOUNTAIN PRESS PUBLISHING...geology of Alaska. (Roadside geology series) Bibliography: p. Includes index. 1. Geology—alaska—Guide-books...ooks 2. Alaska— Description and travel—1981—Guide-books. I. O’Haire, Daniel. II. Title III. Series. QE83...terms and have attempted to explain the geology of Alaska using language that anyone can understand. Roadside...the Roadside Geology series will recognize that Alaska is different. We do not cover the entire state |  | | Report (issue) | | UNITS FOR THE PETERSBURG-WRANGELL AREA 1:63,360-SCALE GEOLOGIC MAPS, SOUTHEASTERN ALASKA Open-File Report...Units for the Petersburg-Wrangell Area 1:63,360-Scale Geologic Maps, Southeastern Alaska By David A...102 LIST OF FIGURES Figure 1. Index map of Petersburg project area (Brew and others, 1984) showing...terrane map of southeastern Alaska, showing area covered by the Petersburg-Wrangell area 1:63,360-scale...7 Combined correlation of map units for the Petersburg-Wrangell area 1:63,360scale geologic maps (Brew |  | | Report (volume) | | 800 GEOLOGY AND MINERAL DEPOSITS OF SOUTHEASTERN ALASKA BY A. F. BUDDINGTON AND THEODORE CHAPIN !...._______________________________________ Vicinity of Wrangell Island...._____________________________ Le Conte Bay_...------.__-_--____-_--_____-_.-_--__-_-----_ Kuiu Island-_---_-__-__-_-_--__-_-_-_-___-_-_-_--___.--_Silurian...Upper Devonian rocks of other parts of southeastern Alaska, >* by Theodore Chapin______________________...__--._.-..__---_-.--.-------.-_-.----Admiralty Island ______________________-______--_--------Volcanic |  | | Journal (article/letter/editorial) | | Rifting of the Alexander Terrane in Southeastern Alaska and Northwestern British Columbia* CLIFF D. TAYLOR...of the Alexander terrane throughout southeastern Alaska and northwestern British Columbia and exhibits...the economically most significant VMS deposit in Alaska and the largest in North America, respectively...interpreted to reflect variable assimilation of mature island-arc crust by more primitive melts having the characteristics...Fa Ridge to the Taupo volcanic zone of the North Island, New Zealand. 1997, 1999; Newberry et al., 1997) |  | | Report (issue) | | undevitrified volcanic glass from Hound Island, Keku Strait, southeastern Alaska, by D. A. Brew and L. J. P...a mafic igneous complex, Christian quadrangle, Alaska, by H. N. Reiser, M. A. Lanphere, and W. P. Brosge...Cretaceous(?) rocks, White Mountain area, near McGrath, Alaska, by C. L. Sainsbury Presence of the ostracode Drepanellina...valley, Alaska, by A. T. Fernald 124 Recent history of the upper Tanana River lowland, Alaska, by A. T...Weis and G. M. Richmond 128 Birch Creek pingo, Alaska, by D. B. Krinsley 133 137 Quaternary stratigraphy |  | | Report (issue) | | BOKAN MOUNTAIN STOCK, PRINCE OF WALES ISLAND, SOUTHEASTERN ALASKA by John A. Philpotts1 , Cliff D. Taylor2...BOKAN MOUNTAIN STOCK, PRINCE OF WALES ISLAND, SOUTHEASTERN ALASKA by John A. Philpotts, Cliff D. Taylor...Arm of Kendrick Bay on southern Prince of Wales Island in the Dixon Entrance Dl quadrangle, 60 km southwest...(1988), and Warner & Barker (1989). Prince of Wales Island is in the Craig subterrane of the allochthonous...the terrane has the characteristics of an oceanic island arc. Paleomagnetic, paleontologic, and detrital |  | | Report (issue) | | IRC 868 THE UNITED STATES GEOLOGICAL SURVEY IN ALASKA: ACCOMPLISHMENTS DURING 1981 Geological Survey...volume). The United States Geological Survey in Alaska: Accomplishments During 1981 Warren L. Coonrad...• • • • • • • • • • • • • • • • • • • STATEWIDE ALASKA •••••••••.••••.••••••••••••••••••••••••••••••••••••••••••••••...••••• Summary of Landsat quadrangle studies in Alaska, by James R. LeCompte, W. Clinton Steele, and Nairn...• • • • • • • • . • Seismic studies in southern Alaska, by Christopher D. Stephens, John C. Lahr and Robert |  | | Journal (article/letter/editorial) | | Table 1. The alkali basalt sample is from Ascension Island (Atkins et al., 1964), but the olivine tholeiite...Triassic age, and attributed its preservation to the calcite cement around the glass fragments, excluding the...Smith, E. G. W. : Oxford expedition to Ascension Island, 1964. Nature. 904, 722-724 (1964) Bonatti, E.:...undevitrified volcanic glass from Hound island, Keku Strait, southeastern Alaska. U.S. Geol. Surv. Profess....palagonitization of the tephra of the Surtsey volcanic island, Iceland. Surtsey Prog. Rep. VI, 7-8 (1972) Luce |  | Eberlein, G. Donald, Churkin, Michael, Carter, Claire, Berg, H.C., Ovenshine, A.T. (1983) Geology of the Craig Quadrangle, Alaska. Open-File Report Vol. 1983 (83-91) US Geological Survey doi:10.3133/ofr8391 | Report (issue) | | GEOLOGICAL SURVEY GEOLOGY OF THE CRAIG QUADRANGLE, ALASKA By G. D. Eberlein, Michael Churkin, Jr., Claire...California 1983 Geology of the Craig Quadrangle, Alaska By G. D. Eberlein, Michael Churkin, Jr., Claire...Mesozoic plutonic rocks, underlies the Prince of Wales Island region southwest of Clarence Strait. Supracrustal...to the belt in neighboring parts of southeastern Alaska have been faunally dated as Late Jurassic to midCretaceous...Taku terrane rocks in other parts of southeastern Alaska, Berg and others interpreted their contact as a |  | | Journal (article/letter/editorial) | | amounts, ~05 and <0.3”/ respectively. Recrystallized calcite was present in all. In the basal sediments, except...materials, (ERLANKand REID,1974) among which are calcite in veins, chlorite, and chlorophaeite. no mass...glass from the Upper Triassic Hound Island volcanics. southeastern Alaska. Amer. J. Sci. 267, 196209. PERRY |  | | Report (issue) | | THE UNITED STATES GEOLOGICAL SURVEY IN ALASKA: ACCOMPLISHMENTS DURING 1980 Geological Survey Circular...a reduction of part of the new geologic map of Alaska published in 1980 by the U.S. Geological Survey...Survey (Beikman, H. M., 1980, Geologic map of Alaska: U.S. Geological Survey Special Map, scale 1:2,500,000...compilation. The United States Geological Survey in Alaska: Accomplishments during 1980 Warren l. Coonrad...results Introduction STATEWIDE ALASKA Tectonostratigraphic terrane map of Alaska, by David L. Jones, Norman |  | | Journal (article/letter/editorial) | | often altered to chlorite, actinolite, epidote and calcite, and calcic plagioclase to albitic plagioclase...mafic minerals to chlorite, epidote, actinolite, calcite, quartz and leucoxene, and plagioclase to sericite...Wilson et al. [23] who place the limit of normative calcite contents at 4%. All chemical data are shown in...Rarely, clinopyroxene is detected in epidote and calcite grains. In the groundmass, lath-shaped plagioclase...aggregates of quartz measure 1 m m across. Occasionally calcite entirely replaces some phenocryst. In the groundmass |  | | Journal (article/letter/editorial) | | Department, Dartmouth College, Hanot,er, NH 03755, USA Received June 13, 1991; revision accepted January...fine-grained matrix rich in smectite, zeolites and calcite. In addition, there are trace amounts of a high-calcium...Department, D a r t m o u t h College, Hanover, NH 03755, USA. topography to have been formed by a later event...from eruptions of a hotspot volcano on Reunion Island. The gist of all four of these investigations-Kilauea...phillipsite and clinoptilolite) and of secondary calcite [48]. The palagonitization process is not fully |  | | Journal (article/letter/editorial) | | University of New Mexico, Albuquerque, NM 8713 1, USA ‘Planetary Geosciences Division, School of Ocean...University of Hawaii at Manoa, Honolulu, HI 96822, USA 3Department of Chemistry and Radiation Center, Oregon...Oregon State Ilniversity, Corvallis, OR 9733 I, USA (Received December 12, 1988; accepltd in revised form...zeolite formed, followed by chabazite. Anal&me and calcite occur in the most highly palagonitized samples...mineralization, mostly of zeolites and clays, with some calcite. Not all phases are present in each sample, but |  | | Report (volume) | | Geologic Studies in Alaska by the U.S. Geological Survey, 1991 AVAILABILITY OF BOOKS AND MAPS OF THE...of Documents. ANCHORAGE, Alaska--4230 University Dr., Rm. 101 ANCHORAGE, Alaska--605 West 4th Ave., Rm...Sales Box 25286 Denver, CO 80225 Residents of Alaska may order maps from U.S. Geological Survey, Map... FAIRBANKS, Alaska--New Federal Building, Twelfth Ave. 101 Geologic Studies in Alaska by the U.S....Creek area, Nome Mining District, Seward Peninsula, Alaska 3 Lori E. Apodaca Geochemistry of lode-gold deposits |  | | Report (issue) | | analysis show that the marble consists of almost pure calcite. The marble belt is bounded on the north by amphibolite...circles are new data from this study. twinned calcite and contains minor amounts of graphite. The grain...occur in variable amounts throughout the area. Calcite, sphene, apatite, and tourmaline are found in...Poikiloblastic calcite- grains inclusions of chlorite and epidote. commonly contain Calcite also occurs...granites are associated with ophielites on Fidalgo Island, Washington (Brown et al., 1979)- Here, albite |  | | Report (issue) | | Geologic Studies in Alaska by the U.S. Geological Survey, 1995 Julie A. Dumoulin and John E. Gray, Editors...associated with low-sulfide, gold-quartz veins in Alaska Richard J. Goldfarb, Cliff D. Taylor, Alien L....skarn and Kennecott strata-bound copper deposits, Alaska Robert G. Eppinger, Stephen J. Sutley, and John...environment, Kuskokwim Mountains region, southwestern Alaska Elizabeth A. Bailey and John E. Gray ............shorelines, Naknek and Iliamna Lakes, southwestern Alaska Darrell S. Kaufman and Karen B. Stilwell...... |  | | Report (volume) | | BTJXILETESr 347 THE AND WRANGELL MINING DISTRICTS, ALASKA BY FRED EUGENE WRIGHT AND CHARLES WILL WRIGHT...belt__________________________ 78 Prince of Wales Island and the seaward islands__________ 79 Principal...south side of North Arm________________ Gravina Island _______._____________________ General descript...Baker Island_____________________________ Woewodski Island _____________________________ Woronkofski Isla...182 184 185 185 186 186 187 187 1.88 Coronation Island prospects______________________ Building stone |
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