References

Clark, 1999 Along-Strike Variation of a Non-volcanic Rifted Margin: A Concurrent MCS and OBS Investigation of Galicia Bank and the Iberia Abyssal Plain M.S. Thesis .

Henning, 2005 Tectonics of the West Iberia Continental Margin From Seismic Reflection Data Ph.D. Dissertation .

Henning et al., 2004 Exhumed upper mantle within the ocean-continent transition on the northern west Iberia margin: Evidence from prestack depth migration and total tectonic subsidence analyses J. Geophys. Res. 109, B05103. doi: 10.1029/2003JB002526

Perez-Gussinye et al., 2003 Mechanisms of extension at nonvolcanic margins: Evidence from the Galicia interior basin, west of Iberia J. Geophys. Res. 108(B5). doi: 10.1029/2001JB000901

Reston, 2005 Polyphase faulting during the development of the west Galicia rifted margin Earth and Planetary Science Letters 237(3-4). doi: 10.1016/j.epsl.2005.06.019

Zelt et al., 2003 Assessment of crustal velocity models using seismic refraction and reflection tomography Geophys. J. Int. 153(3). doi: 10.1046/j.1365-246X.2003.02027.x

Unger, 2001 Structural and Tectonic Interpretation of Deep Seismic Reflection Data Offshore Spain and Portugal: A Tectonic Rifting Model Ph.D. Dissertation .

Clark et al., 2007 Characterizing the Galicia Bank-Southern Iberia Abyssal Plain rifted margin segment boundary using multichannel seismic and ocean bottom seismometer data J. Geophys. Res. 112. doi: 10.1029/2006JB004581

Download Data Set Metadata Report

XML

MGDS formatted data set xml report containing verbose file and data set level metadata

ISO XML

ISO 19115-compliant xml report containing general data set level metadata

Related Acquisition Information

EW9705

Line Log

Seismic Acquisition Parameters

Download as Text: EW9705

EW9705_ACQ001 (Lines: Sequences 1-8)

Source Information

AirGun (BOLT:1500C)

Source Number: 20

Volume (cu in): 8385

Pressure (psi): 2000

Depth (m): 8.5

Distance to Near Channel (m): 37.9

Distance to Antenna (m): 87.4

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 168

Group Spacing (m): 25

Cable Length (m): 4000

Near Channel Number: 160

Nav System

DGPS Magnovox 4200D

WGS84

Acquisition System

Digital

Name: DMS2000

Sample Interval (msec): 2

Details

For Sequences 1 and 7, the Shot Interval was 60s and the Record Length was 25s

For Sequences 2,5,6,8, the Shot Interval was 20s and the Record Length was 16s

For Sequences 3 and 4, the Shot Interval was 40s and the Record Length was 25s

168 channels were originally recorded, 160 channels were MCS, 168 were archived.

EW9705_ACQ002 (Lines: Sequences 9,15-25)

Source Information

AirGun (BOLT:1500C)

Source Number: 20

Volume (cu in): 8385

Pressure (psi): 2000

Depth (m): 8.5

Distance to Near Channel (m): 37.9

Distance to Antenna (m): 87.4

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 172

Group Spacing (m): 25

Cable Length (m): 4100

Near Channel Number: 164

Nav System

DGPS Magnavox 4200D

WGS84

Acquisition System

Digital

Name: DMS2000

Sample Interval (msec): 2

Details

For Sequence 19 (shots 100-441), the Shot Interval was 60s and the Record Length was 25s

For Sequences 17,18,20,21 (shots 101-825),22-25, the Shot Interval was 20s and the Record Length was 16s

For Sequences 9,15,16,19 (shots 442-1269), the Shot Interval was 40s and the Record Length was 25s

For Sequence 21 (shots 826-2616), the Shot Interval was 60s and the Record Length was 16s

172 channels were originally recorded, 164 channels were MCS, 172 were archived.

EW9705_ACQ003 (Lines: Sequences 10-14)

Source Information

AirGun (BOLT:1500C)

Source Number: 20

Volume (cu in): 8385

Pressure (psi): 2000

Depth (m): 8.5

Distance to Near Channel (m): 63.9

Distance to Antenna (m): 87.4

Number of Arrays: 1

Receiver Information

Hydrophone:Streamer

Number of Cables: 1

Channels Per Cable: 40

Group Spacing (m): 25

Cable Length (m): 1000

Near Channel Number: 40

Nav System

DGPS Magnovox 4200D

WGS84

Acquisition System

Digital

Name: DMS2000

Sample Interval (msec): 2

Details

For Sequences 10,12,14, the Shot Interval was 40s and the Record Length was 25s

For Sequences 11 and 13, the Shot Interval was 20s and the Record Length was 16s

172 channels were originally recorded, 40 channels were MCS, 172 were archived.

edu.utexas.ig:ew9705_acq001 (Lines: )

Source Information

AirGun

Receiver Information

NotApplicable

Used Active Tail Buoy: false

Used Compass Birds: false

Nav System

GPS

WGS84

Acquisition System

Digital

Name: DSS 240

Details

Receiver Type: Hydrophone_Streamer; Seismometer_OceanBottom

Source Type: SeismicSource_Gun_Air

Acquisition System Name: DSS 240

Acquisition System Type: digital

Seismic Nav System: GPS

Survey Datum: WGS84

Source to Near Channel (m): null

Antenna to Source (m): 88.7

Number of Channels Recorded: 160

Channel Length (m): 25

Cable Receiver Depth (m): null

Source Volume (cubicInches): 8400

Source Pressure (bars): null

Source Number: 20

Source Depth (m): 8.5 meters

Shot Control: time

Shot Interval (s or m): 40: corresponding to a shot spacing of 100 m.

Compass Birds: no

Tail Buoy Positioning: no

Recording Delay: no

Data Set Documents

Log

OBS

ew9705.OBS_info.csv (1.0kB)

ASCII

Science Report

Cruise

ew9705.cruiserpt.pdf (2.0MB)

PDF

Technical Report

Data Processing

ew9705.line9ProcessingScheme.pdf (4.7MB)

PDF

EW9705 Documents

Log

Seismic recording log

EW9705_seismic_recording_log.pdf (15.4MB)

PDF

More Information

UTIG OBS processing plans

EW9705_OBS_UTIG_processing.pdf (112.0kB)

PDF

Science Report

Cruise

ew9705.cruiserpt.pdf (2.0MB)

PDF

Science Report

OBS cruise report by Yosio Nakamura

EW9705.OBScruiserpt_Nakamura.pdf (2.0MB)

PDF

Science Report

Science cruise report by Dale Sawyer

EW9705_cruise_report_Sawyer.pdf (1.7MB)

PDF

Watchstander Log

Science party watchstander log

EW9705_sci_watchstander_log.pdf (14.9MB)

PDF

How To Cite This Data

Related Data Sets

Sort by:

Seismic:Navigation

Processed multichannel seismic data from the Galicia Bank and Iberia Abyssal Plain, acquired during the R/V Maurice Ewing survey EW9705 (1995) as part of a joint US-German MCS and wide-angle seismic experiment (ISE 97)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

Events

Line Log

Locale

File Format

ASCII

Quality

2

Sawyer, Dale

Rice

Data Set References

Seismic:Reflection:MCS

Processed multichannel seismic data from the Galicia Bank and Iberia Abyssal Plain, acquired during the R/V Maurice Ewing survey EW9705 (1995) as part of a joint US-German MCS and wide-angle seismic experiment (ISE 97)

Platform Info

Array:Maurice Ewing

LDEO

Device Info

Seismic:MCS

Events

Line Log

Locale

File Format

PDF

Quality

2

Sawyer, Dale

Rice

Data Set References