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Metadata
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ID
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EW9410
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Also Known As
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E-10-94-BS
EW9410
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Abstract
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Lamont-Doherty Earth Observatory. Chief Scientist: Simon
Klemperer. Geophysical data (multichannel, sonobuoy, gravity,
magnetics, 3dot5khz) of field activity EW9410 (E-10-94-BS) in
Bering Sea, Chukchi Sea from 08/06/1994 to 09/01/1994
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Organization |
Lamont-Doherty Earth Observatory
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Project/Theme
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Deep Seismic Investigation of the Continental Crust, Bering and Chukchi Seas, Alaska
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Chief Scientist
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Simon Klemperer
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Activity Type
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Geophysical
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Platform
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Maurice Ewing
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Area of Operation
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Bering Sea, Chukchi Sea, Bering Sea
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Location map
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Bounding Coordinates
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71.82599
-178.49923 -154.28032
53.84387
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Ports
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leave Dutch Harbor, AK
arrive Dutch Harbor, AK
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Dates
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08/06/1994 (JD 218) to 09/01/1994 (JD 244)
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Analog Materials
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No analog holdings.
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Index maps
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Information Specialist
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Crew
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Simon Klemperer
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Chief Scientist, Stanford University
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Jon Childs
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Geophysicist, USGS Western Region
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Brian Galloway
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Geophysicist, Stanford University
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Nikita Bogdanov
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Geologist, Institute of the Lithosphere, Russian Academy of Sciences
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Helios Gnibidenko
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Geophysicist, Institute of Oceanology, Russian Academy of Sciences
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Terri Plake
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Geologist, Western Washington University
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Arsenio Tepano
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Watchstander, Western Washington University
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Marian Cline
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Watchstander, Princeton University
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Joe Stennett
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Science Officer, LDEO
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Bill Robinson
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Data Analyst, LDEO
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Brian McKenna
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Computer Technician, Digicon Inc.
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Equipment Used
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multichannel
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sonobuoy
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gravity
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magnetics
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3dot5khz
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Purpose
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Stanford University, in conjunction with the U.S. Geological
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Survey, and with participation by the Institute of the Lithosphere
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and the Institute of Oceanology of the Russian Academy of Sciences,
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and the Geodynamics Research Institute of Texas A&M University,
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conducted deep seismic investigations of the continental crust
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beneath the Bering and Chukchi seas, Alaska, during the month of
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August, 1994.
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Summary
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Cruise Report (.pdf)
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STANFORD UNIVERSITY, IN CONJUNCTION WITH THE U.S. GEOLOGICAL SURVEY,
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AND WITH PARTICIPATION BY THE INSTITUTE OF THE LITHOSPHERE AND THE
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INSTITUTE OF OCEANOLOGY OF THE RUSSIAN ACADEMY OF SCIENCES, AND THE
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GEODYNAMICS RESEARCH INSTITUTE OF TEXAS A&M UNIVERSITY, CONDUCTED
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DEEP SEISMIC INVESTIGATIONS OF THE CONTINENTAL CRUST BENEATH THE
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BERING AND CHUKCHI SEAS, ALASKA, DURING THE MONTH OF AUGUST, 1994.
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THE DATA WAS RECORDED TO TWO-WAY TRAVEL-TIMES OF 15 TO 23 SECONDS,
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WITH 50 TO 75 METER SHOT SPACING.
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TWO NORTH-SOUTH TRANSECTS WERE PROFILED. THE EASTERN TRANSECT EXTENDED
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FROM 58(50'N, 169(32'W, WELL WITHIN THE CONTINENTAL SHELF OF THE
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BERING SEA, NORTH OF THE PRIBILOF ISLANDS, TO JUST SOUTH OF THE SHELF
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EDGE NORTH OF BARROW, ALASKA, AT 71(49'N, 154(33'W. ICE PREVENTED
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CONTINUATION OF THE LINE BEYOND THE SHELF EDGE. THE WESTERN TRANSECT
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EXTENDED FROM THE CENTRAL CHUKCHI SEA, WELL WITHIN THE SHELF AT
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71(23'N, 163(00'W, INTO THE ALEUTIAN BASIN AT 58(00'N, 178(30'W, NEAR
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NAVARINSKY CANYON. AN ADDITIONAL SHORT LINE CROSSING OVER THE
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BERINGIAN MARGIN A SECOND TIME WAS RECORDED NEAR ZEMCHUG CANYON EAST
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OF THE WESTERN TRANSECT.
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THE PROFILES CROSS IMPORTANT STRIKE-SLIP FAULTS, POSSIBLE TERRANE
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BOUNDARIES, TWO CONTINENTAL MARGINS, AND SEVERAL CRETACEOUS/TERTIARY
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SEDIMENTARY BASINS (NORTON, HOPE, CHUKCHI, AND NAVARIN BASINS).
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TOGETHER WITH THE PRECEDING CRUISE EW94-09, THE PROFILES PROVIDE A
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CONTINUOUS TRANSECT ACROSS THE NORTH AMERICAN CONTINENT, FROM THE
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PACIFIC TO THE ARCTIC OCEAN (SEE FIGURES 7 THROUGH 9 FOR DATA EXAMPLES).
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MOST OF THE MULTI-CHANNEL SEISMIC (MCS) DATA IS OF HIGH QUALITY,
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BUT BAD WEATHER, STRONG CURRENTS, AND RECORDING PROBLEMS SOMETIMES
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PRESENTED DIFFICULTIES DURING DATA ACQUISITION. GRAVITY, MAGNETIC,
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AND SONOBUOY DATA WERE ALSO RECORDED ALONG THE PROFILES. WIDE-ANGLE
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RECORDING WAS DONE IN CONJUNCTION WITH THE SEISMIC PROFILING, AT
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RECORDING SITES LOCATED ALONG THE CENTRAL WEST COAST OF ALASKA AND
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THE CHUKCHI PENINSULA, AS WELL AS ON ISLANDS IN THE BERING STRAIT
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AND BERING SEA.
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Got Help?
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For EW9410, we would appreciate any information on -- analog materials, contract, days at sea, dive count, funding, information to be derived, kms of navigation, national plan, NGDC Info, notes, owner, project number, publications, scanned materials, seismic description, station count, station description, submersible, tabulated info.
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