Bransfield Strait ocean bottom seismometer (OBS) data
Entry ID: BS_OBS

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Summary
Abstract: This was an OBS program in the Bransfield Strait, Antarctica carried out on two
cruises of the Nathaniel B. Palmer. The main objective was to examine crustal
thinning associated with the active extension in the Bransfield Strait
following up on a 1991 MCS seismic program (EW9101).

The data set consists of dip profiles 1/7, 3, and 5 (7 was a reshoot of 1) and
strike profiles 2, 4, 6, 9, and 10. Each profile is 150-200 km long, and was
recorded by 10-11 ocean bottom seismometers (OBSs) at a spacing of 15-20 km.

The data is in SEG-Y format, with all navigational information in the headers.
Related URL
Description: Cruise Information NBP0002, Bransfield Strait OBS.
Leg 2 collected OBS data along lines 1 to 5.

Description: Cruise Information NBP0007A, Bransfield Strait OBS.
Leg 7A collected OBS data along Lines 6, 7, 9 and 10.
Geographic Coverage
Spatial coordinates   
  N: -60.0   S: -64.0   E: -54.0   W: -64.0

Temporal Coverage
Start Date: 2000-04-05
Stop Date: 2000-05-06

Start Date: 2000-10-27
Stop Date: 2000-11-18
ISO Topic Category
Instrument
SEISMOMETERS Ancillary Description
Access Constraints unrestricted
Use Constraints UTIG use rules apply, no commercial DB or Web use without permission.
Ancillary Keywords
Data Set Progress
COMPLETE
Originating Center
Data Center
Seismic Data Center, Institute for Geophysics, University of Texas at Austin Supplemental Info
Data Center URL: http://www.ig.utexas.edu/sdc/
Dataset ID: NBP0002NBP0007A

Data Center Personnel
Name: GAIL LYNN CHRISTESON
Phone: 512-471-0463
Email: gail at ig.utexas.edu
Contact Address:
Institute For Geophysics
University of Texas
4412 Spicewood Springs Rd, Bldg 600
City: Austin
Province or State: TX
Postal Code: 78759
Country: USA
Personnel
Role: INVESTIGATOR
Phone: 512-471-0450
Email: jamie at ig.utexas.edu
Contact Address:
Institute For Geophysics
University of Texas
4412 Spicewood Springs Rd, Bldg 600
City: Austin
Province or State: TX
Postal Code: 78759
Country: USA
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Publications/References
Barker, D. H. N., Christeson, G., Austin, J.A., and Dalziel, I.W.D., 2003,
Back-arc basin evolution and cordilleran orogenesis: Insights from new ocean
bottom seismograph refraction profiling in Bransfield Strait, Antarctica,
Geology, vol. 31, p. 107-110.

Christeson, G.L., Barker, D. H. N., Austin, J.A., and Dalziel, I.W.D., 2003,
Deep crustal structure of Bransfield Strait: Initiation of a backarc basin by
rift reactivation and propagation, Journal of Geophysical Research, vol. 108,
p. 2492, DOI: 10.129/2003JB002468.
Extended Metadata Properties
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Creation and Review Dates
Last DIF Revision Date: 2010-07-09
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