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ID EW9410
Also Known As E-10-94-BS
EW9410
Abstract 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
Organization Lamont-Doherty Earth Observatory
Project/Theme Deep Seismic Investigation of the Continental Crust, Bering and Chukchi Seas, Alaska
Chief Scientist Simon Klemperer
Activity Type Geophysical
Platform Maurice Ewing
Area of Operation Bering Sea, Chukchi Sea, Bering Sea
Bounding Coordinates
71.82599
-178.49923    -154.28032
53.84387
Ports leave Dutch Harbor, AK
arrive Dutch Harbor, AK
Dates 08/06/1994 (JD 218) to 09/01/1994 (JD 244)
Analog Materials No analog holdings.
Information Specialist
Jon Childs
Crew
Simon Klemperer Chief Scientist, Stanford University
Jon Childs Geophysicist, USGS Western Region
Brian Galloway Geophysicist, Stanford University
Nikita Bogdanov Geologist, Institute of the Lithosphere, Russian Academy of Sciences
Helios Gnibidenko Geophysicist, Institute of Oceanology, Russian Academy of Sciences
Terri Plake Geologist, Western Washington University
Arsenio Tepano Watchstander, Western Washington University
Marian Cline Watchstander, Princeton University
Joe Stennett Science Officer, LDEO
Bill Robinson Data Analyst, LDEO
Brian McKenna Computer Technician, Digicon Inc.
Equipment Used
multichannel
sonobuoy
gravity
magnetics
3dot5khz
Purpose
Stanford University, in conjunction with the U.S. Geological
Survey, and with participation by the Institute of the Lithosphere
and the Institute of Oceanology of the Russian Academy of Sciences,
and the Geodynamics Research Institute of Texas A&M University,
conducted deep seismic investigations of the continental crust
beneath the Bering and Chukchi seas, Alaska, during the month of
August, 1994.
Summary
Cruise Report (.pdf)

STANFORD UNIVERSITY, IN CONJUNCTION WITH THE U.S. GEOLOGICAL SURVEY, AND WITH PARTICIPATION BY THE INSTITUTE OF THE LITHOSPHERE AND THE INSTITUTE OF OCEANOLOGY OF THE RUSSIAN ACADEMY OF SCIENCES, AND THE GEODYNAMICS RESEARCH INSTITUTE OF TEXAS A&M UNIVERSITY, CONDUCTED DEEP SEISMIC INVESTIGATIONS OF THE CONTINENTAL CRUST BENEATH THE BERING AND CHUKCHI SEAS, ALASKA, DURING THE MONTH OF AUGUST, 1994. THE DATA WAS RECORDED TO TWO-WAY TRAVEL-TIMES OF 15 TO 23 SECONDS, WITH 50 TO 75 METER SHOT SPACING.

TWO NORTH-SOUTH TRANSECTS WERE PROFILED. THE EASTERN TRANSECT EXTENDED FROM 58(50'N, 169(32'W, WELL WITHIN THE CONTINENTAL SHELF OF THE BERING SEA, NORTH OF THE PRIBILOF ISLANDS, TO JUST SOUTH OF THE SHELF EDGE NORTH OF BARROW, ALASKA, AT 71(49'N, 154(33'W. ICE PREVENTED CONTINUATION OF THE LINE BEYOND THE SHELF EDGE. THE WESTERN TRANSECT EXTENDED FROM THE CENTRAL CHUKCHI SEA, WELL WITHIN THE SHELF AT 71(23'N, 163(00'W, INTO THE ALEUTIAN BASIN AT 58(00'N, 178(30'W, NEAR NAVARINSKY CANYON. AN ADDITIONAL SHORT LINE CROSSING OVER THE BERINGIAN MARGIN A SECOND TIME WAS RECORDED NEAR ZEMCHUG CANYON EAST OF THE WESTERN TRANSECT.

THE PROFILES CROSS IMPORTANT STRIKE-SLIP FAULTS, POSSIBLE TERRANE BOUNDARIES, TWO CONTINENTAL MARGINS, AND SEVERAL CRETACEOUS/TERTIARY SEDIMENTARY BASINS (NORTON, HOPE, CHUKCHI, AND NAVARIN BASINS). TOGETHER WITH THE PRECEDING CRUISE EW94-09, THE PROFILES PROVIDE A CONTINUOUS TRANSECT ACROSS THE NORTH AMERICAN CONTINENT, FROM THE PACIFIC TO THE ARCTIC OCEAN (SEE FIGURES 7 THROUGH 9 FOR DATA EXAMPLES).

MOST OF THE MULTI-CHANNEL SEISMIC (MCS) DATA IS OF HIGH QUALITY, BUT BAD WEATHER, STRONG CURRENTS, AND RECORDING PROBLEMS SOMETIMES PRESENTED DIFFICULTIES DURING DATA ACQUISITION. GRAVITY, MAGNETIC, AND SONOBUOY DATA WERE ALSO RECORDED ALONG THE PROFILES. WIDE-ANGLE RECORDING WAS DONE IN CONJUNCTION WITH THE SEISMIC PROFILING, AT RECORDING SITES LOCATED ALONG THE CENTRAL WEST COAST OF ALASKA AND THE CHUKCHI PENINSULA, AS WELL AS ON ISLANDS IN THE BERING STRAIT AND BERING SEA.

Publications
Brocher, T.M., Allen, R.M., Stone, D.B., Wolf, L.W., and Galloway, B.K., 1995,
Data report for onshore-offshore wide-angle seismic recordings in the
Bering-Chukchi Sea, western Alaska and eastern Siberia, 57 p., U.S. Geological
Survey Open-File Report 95-650, URL:
http://pubs.er.usgs.gov/publication/ofr95650
Additional publication information at:
http://www.dggs.dnr.state.ak.us/pubs/id/11912
Got Help? 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, scanned materials, seismic description, station count, station description, submersible, tabulated info.
Type Webpage KMZ Arc         Metadata        
Bathymetry data bath    
Gravity data grav    
Magnetics data mag    
Metadata data     txt  data  FAQ  xml
Navigation data nav    
Seismic data seis    
Times   060.times    

EW9410 location map of where navigation 

equipment operated
EW9410 location map of where navigation 

equipment operated

 
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