EW9905 - Marine Geoscience Data System

EW9905

Field:Marine

Cruise DOI: 10.7284/901331

Map View

Locale

Cascadia

Gorda Escarpment
Origin and Tectonic Development of the Gorda Escarpment

Trehu, Anne

Chief Scientist

OSU

Awards

OCE98-11498

Platform

Maurice Ewing

LDEO

Start Date

1999-05-05

Newport, Oregon

Stop Date

1999-05-19

Newport, Oregon

Report Incorrect Information

Data Sets

Acquisition Information

References

Personnel

Instruments

Documents

Related Information

Sensor Data

Sort by:

Backscatter:Acoustic, Bathymetry:Swath

(Swath)

Device Info

Sonar:Multibeam

Maurice Ewing

Repository

NOAA:NCEI

Repository

MGDS

Format

MBSystem

Trehu, Anne

OSU

Navigation:Primary

Device Info

Navigation

Maurice Ewing

Repository

MGDS

Format

MGDS:Nav, SHP

Trehu, Anne

OSU

Seismic Reflection/Refraction

(Image Seismic, Segy)

Device Info

Seismic:MCS

Array:Maurice Ewing

Repository

MGDS

Format

ASCII, ASCII:TSN, PDF, SEGY

Trehu, Anne

OSU

Hoover and Trehu, 2017

Event Logs

Line

Device Info

Related Devices

Seismic:MCS

LDEO

Platform: Maurice Ewing (Array)

Trehu, Anne

OSU

Line

Device Info

Seismic:MCS

Platform: Maurice Ewing (Array)

Trehu, Anne

OSU

Seismic Acquisition Parameters

Download As Text

EW9905_ACQ001 (Lines: Lines 1 - 25 (all lines))

Source Information

AirGun (BOLT)

Source Number: 1

Shot Interval (m): 50

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 480

Channels Recorded: 480

Cable Length (m): 6000

Near Channel Number: 480

Nav System

GPS PCode

WGS84

Acquisition System

Digital

Name: Syntron Syntrak 480

Sample Interval (msec): 2

Record Length (sec): 10.24

Details

Source to Near Channel: 182 meters (determined from segy files)

Source Depth, Source Volume, Source to Antenna Distance and Cable Depth are unknown.

edu.utexas.ig:ew9905_acq001 (Lines: )

Source Information

AirGun

Receiver Information

Hydrophone:Streamer

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

WGS84

Acquisition System

Digital

Name:

Details

Receiver Type: Hydrophone_Streamer

Source Type: SeismicSource_Gun_Air

Acquisition System Name: null

Acquisition System Type: digital

Seismic Nav System: null

Survey Datum: WGS84

Source to Near Channel (m): null

Antenna to Source (m): null

Number of Channels Recorded: 480

Channel Length (m): 12.5

Cable Receiver Depth (m): null

Source Volume (cubicInches): 1350

Source Pressure (bars): null

Source Number: 6

Source Depth (m): null

Shot Control: null

Shot Interval (s or m): null

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: no

References

Hoover and Trehu, 2017 Uplift, Emergence, and Subsidence of the Gorda Escarpment Basement Ridge Offshore Cape Mendocino, CA Geochem Geophys Geosyst . doi: 10.1002/2017GC007128

Potter, 2002 The Gorda Escarpment's Rise and Fall: A Synthesis of Exploration Seismology, Sampling Efforts Micropaleontology and Radiometric Dating M.S. Thesis .

Stakes et al., 2002 Mass wasting, methane venting, and biological communities on the Mendocino transform fault Geology 30(5). doi: 10.1130/0091-7613(2002)030<0407:MWMVAB>2.0.CO;2

Trehu et al., 2003 Seismic and seafloor evidence for free gas, gas hydrates, and fluid seeps on the transform margin offshore Cape Mendocino J. Geophys. Res. 108(B5). doi: 10.1029/2001JB001679

Scientific Personnel

Bartlett, Cindy

Scientist

Dunbar, Robert

Scientist

Stanford University

Franklin, Ryan

Scientist

Kleibacher, Derik

Scientist

Knappenberger, Marie

Scientist

Salamy, Karen

Scientist

Stakes, Debra

Scientist

Cuesta College

Trehu, Anne

Scientist:Chief

OSU

Winkler, Mike

Scientist

Support Personnel

Anable, Jay

Technician:Airgun

LDEO

Gutierrez, Carlos

Technician:Airgun

LDEO

Mogk, Seth

Technician:Airgun

LDEO

Stennett, Joseph

Technician:Science

LDEO

Turmelle, Jeff

Technician:Data

LDEO

Instruments

Navigation

Device Info

NotProvided

Sonar:Multibeam

Device Info

Hydrosweep DS

Atlas

Seismic:MCS

Device Info

NotProvided

LDEO

Platform Info

Maurice Ewing

Array

Seismic:MCS

Device Info

NotProvided

Platform Info

Maurice Ewing

Array