Geologic Studies in Alaska by the U.S. Geological Survey, 1992

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CONTENTS Timing of Early Tertiary Ridge Subduction in Southern Alaska Dwight C. Bradley, Peter J. Haeussler, and Timothy M. Kusky ....................................... Geochemical Evaluation of Stream-Sediment Data from the Bering Glacier and Icy Bay Quadrangles, South-Central Alaska Richard J. Goldfarb and J. Carter Borden .......................................................................... SOUTHEASTERN ALASKA Newly Discovered Molybdenite Occurrences at Dora Bay, Prince of Wales Island, Southeast Alaska, and Preliminary Scanning Electron Microscope Studies John Philpotts, Cliff Taylor, John Evans, and Poul Emsbo ............................................... Geochemical Character of Upper Paleozoic and Triassic Greenstone and Related Metavolcanic Rocks of the Wrangellia Terrane in Northern Southeastern Alaska Arthur B. Ford and David A. Brew .................................................................................... Reconnaissance Geochemistry of Permian and Triassic Basalts of the Taku and Wrangellia Terranes, Southeastern Alaska George E. Gehrels and Fred Barker ................................................................................... GEOLOGIC NOTES Ostracode Assemblages from Modem Bottom Sediments of Vitus Lake, Bering Piedmont Glacier, Southeast Alaska Elisabeth M. Brouwers and Richard M. Forester ............................................................... Rubidium-Strontium Isotopic Systematics of Vein Minerals in the Juneau Gold Belt, Alaska Ronald W. Kistler, Rainer J. Newbeny, and David A. Brew ............................................ BIBLIOGRAPHIES U.S. Geological Survey Reports on Alaska Released in 1992 Compiled by Ellen R. White ............................................................................................... Reports About Alaska in Non-USGS Publications Released in 1992 that Include USGS Authors Compiled by Ellen R. White ...............................................................................................
CONTENTS CONTRIBUTORS TO THIS BULLETIN Anchorage U.S. Geological Survey 4200 University Drive Anchorage, Alaska 99508-4667 Bradley, Dwight C. Carter, L. David Dumoulin, Julie A. Haeussler, Peter J. Karl, Susan M. Nelson, Steven W. Denver U.S. Geological Survey MS- Box 25046 Denver Federal Center Lakewood, Colorado 80225-0046 AleinikofJ; John MS 963 Barker, Fred MS 91 3 Borden, J. Carter MS 973 Bradley, Leon A. MS 973 Brouwers, Elisabeth M. MS 919 Bullock, John H., Jr. MS 973 Emsbo, Poul MS 973 Eppinger, Robert G. MS 973 Flores, Romeo M. MS 972 Forester, Richard M. MS 919 Goldfarb, Richard J. MS 973 Gray, John E. MS 973 Schenk, Christopher J. MS 971 Stricker, Gary D. MS 972 Taylor, Cliff MS 973 Theodorakos, Peter M. MS 973 Walter, Marianne MS 963 Menlo Park U.S. Geological Survey 345 Middlefield Rd. MS- Menlo Park, California 94025-3591 Bird, Kenneth J. MS 999 Brew, David A. MS 904 Ford, Arthur B. MS 904 Galloway, John P. MS 904 Kistler, Ronald W. MS 937 Moore, Thomas E. MS 904 Nokleberg, Warren MS 904 White, Ellen R. MS 955
Page 1 and 2: Geologic Studies in Alaska by the U
Page 3: CONTENTS Introduction Cynthia Dusel
Page 7 and 8: GEOLOGIC STUDIES IN ALASKA BY THE U
Page 9 and 10: LATE HOLOCENE LONGITUDINAL AND PARA
Page 19 and 20: DEEP-WATER LITHOFACIES AND CONODONT
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Page 37 and 38: LITHOFACIES AND CONODONTS OF CARBON
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DEPOSITIONAL SEQUENCES IN ATIGUN SY
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U-Pb AGES OF ZIRCON, MONAZITE, AND
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APPEAL FOR NONPROLIFERATION OF ESCA
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FAVORABLE AREAS FOR METALLIC MINERA
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GOLD AND CINNABAR IN HEAVY-MINERAL
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EARLY CENOZOIC DEPOSITIONAL SYSTEMS
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EARLY CENOZOIC DEPOSITIONAL S YSTEM
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RESERVOIR FRAMEWORK ARCHITECTURE, C
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GEOCHEMISTRY OF OPHIOLITIC ROCKS FR
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GEOLOGIC STUDIES IN ALASKA BY THE U
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Table 1. Isotopic ages of intrusive
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Table 1. Isotopic ages of intrusive
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GEOCHEMICAL EVALUATION OF STREAM-SE
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Table 3. Summary of geochemical sig
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GEOCHEMICAL CHARACTER OF UPPER PALE
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RECONNAISSANCE GEOCHEMISTRY OF BASA
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OSTRACODE ASSEMBLAGES FROM MODERN B
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RUBIDIUM-STRONTIUM ISOTOPIC SYSTEMA
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RUBIDIUM-STRONTIUM ISOTOPIC SYSTEMA
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US. GEOLOGICAL SURVEY REPORTS ON AL
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U.S. GEOLOGICAL SURVEY REPORTS ON A
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U.S. GEOLOGICAL SURVEY REPOR TS ON
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REPORTS ABOUT ALASKA IN NON-USGS PU
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REPORTS ABOUT ALASKA IN NON-USGS PU
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Geologic Studies in Alaska by the U.S. Geological Survey, 1992

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