LEADER 05601nam 2200697Ia 450 001 9910960960003321 005 20250909221104.0 010 $a9786610203802 010 $a9781280203800 010 $a1280203803 010 $a9780309583305 010 $a0309583306 010 $a9780585085685 010 $a0585085684 035 $a(CKB)110986584751064 035 $a(OCoLC)647361307 035 $a(CaPaEBR)ebrary10055632 035 $a(SSID)ssj0000215447 035 $a(PQKBManifestationID)11912251 035 $a(PQKBTitleCode)TC0000215447 035 $a(PQKBWorkID)10185000 035 $a(PQKB)11149985 035 $a(MiAaPQ)EBC3376412 035 $a(Au-PeEL)EBL3376412 035 $a(CaPaEBR)ebr10055632 035 $a(CaONFJC)MIL20380 035 $a(OCoLC)923263557 035 $a(Perlego)4734575 035 $a(BIP)86423 035 $a(EXLCZ)99110986584751064 100 $a19911017d1991 uy 0 101 0 $aeng 135 $aurcn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aOpportunities and priorities in arctic geoscience /$fCommittee on Arctic Solid-Earth Geosciences, Polar Research Board, Commission on Geosciences, Environment, and Resources, National Research Council 205 $a1st ed. 210 $aWashington, D.C. $cNational Academy Press$d1991 215 $a1 online resource (xii, 67 pages) $cillustrations 300 $aSupport provided jointly by the Department of the Interior, U.S. Geological Survey, the National Science Foundation, the Department of Energy, and the Arthur Day Fund. 300 $aCommittee chairman: Arthur Grantz. 311 0 $a9780309044851 311 0 $a0309044855 320 $aIncludes bibliographical references (p. 61-67). 327 $aOpportunities and Priorities in ARCTIC GEOSCIENCE -- Copyright -- Contents -- Opportunities and Priorities in ARCTIC GEOSCIENCE -- Executive Summary -- 1 Introduction -- 2 Physiography -- 3 Role of the Arctic in Global Solid-Earth Geoscience -- GEOLOGIC FRAMEWORK AND TECTONIC EVOLUTION -- MINERAL RESOURCES -- ENVIRONMENTAL HISTORY AND GLOBAL CHANGE -- ARCTIC GEOLOGIC PROCESSES -- 4 Rationale for Focusing on the Arctic Ocean Basin and its Margins -- 5 The Next Stage of Arctic Solid-Earth Geoscience Research -- GEOLOGIC FRAMEWORK AND TECTONIC EVOLUTION -- Major Problems and Research Questions -- Tectonic Problems in the Amerasia Basin -- Ridge Systems -- Subbasins -- Selected Tectonic Problems in the Eurasia Basin -- Fram Strait -- The Slow-Spreading Arctic Mid-Ocean Ridge -- Continental Margins -- Canada Basin -- Tromso-Mackenzie Lineament -- Laptev-Mackenzie Margin -- Laptev Sea -- Special Studies -- Comparative Studies of Trans-Arctic Geologic Structure and Stratigraphy -- Paleomagnetic Analysis of Arctic Tectonic Problems -- Seismologic Investigations -- Earthquake Seismology -- Structure and Rheology of the Crust and Upper Mantle -- Continent-Ocean Transition -- Plate Interactions -- Neotectonics -- Seabed Imaging and Mapping -- Magnetic and Gravity Data -- SEDIMENTARY RECORD AND ENVIRONMENTAL HISTORY -- The Record in Circum-Arctic Nonmarine and Paralic Sediments -- Cretaceous Sediments -- Tertiary and Quaternary Sediments -- The Record in the Arctic Ocean Basin -- Cretaceous and Tertiary Sediments -- Quaternary Sediments -- The Record in Arctic Ice Cores -- ARCTIC GEOLOGIC PROCESSES AND ENVIRONMENTAL INDICATORS -- Paleoenvironmental Indicators -- Sedimentation -- Role of Sea Ice in Arctic Sedimentation -- Paleobiogeography and Paleoecology -- Possible Record of Solar-Terrestrial Interactions -- Gas Hydrates and Offshore Permafrost. 327 $a6 Logistic Realities and Opportunities -- SUPPORT FACILITIES -- INSTRUMENTATION -- EARTH-ORBITING SATELLITES -- AIRCRAFT -- Logistic Support -- Magnetic and Gravity Surveys -- DRIFTING STATIONS -- Ships -- Ice Floes and Ice Islands -- OVER-ICE SURVEYS -- SHIPS -- SUBMARINES -- DEEP SUBMERSIBLES -- BUOYS -- SUBSEABED SAMPLING -- 7 Research Priorities -- 8 Special Concerns -- INTERNATIONAL COOPERATION -- BIBLIOGRAPHIC AND TRANSLATION PROGRAMS -- RESEARCH DIRECTORY -- SMALL MEETINGS -- References. 330 $aThere is broad agreement in the scientific community that the solid earth beneath the Arctic Ocean basin contains answers to major unsolved problems in the earth sciences and that many of these pertain to questions that are of global scientific significance or pressing societal concern. Recent political and technological developments, including the end of the Cold War and the prospective availability of nuclear submarines and powerful icebreakers for use as research platforms, appear to provide remedies for formidable obstacles of communication and access in harsh environmental conditions. This book recommends that the Arctic Ocean basin and its margins be the focus of a research program in three stages of study based on selected criteria: geologic framework and tectonic evolution, the sedimentary record and environmental history, and arctic geologic processes and environmental indicators. 606 $aGeology$zArctic regions 607 $aArctic regions$xResearch 615 0$aGeology 676 $a559.8/072 701 $aGrantz$b Arthur$f1927-2021$01276837 712 02$aNational Research Council (U.S.).$bCommittee on Arctic Solid-Earth Geosciences. 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910960960003321 996 $aOpportunities and priorities in arctic geoscience$94356882 997 $aUNINA