[ View Brief Record ] [ Update this Record ]

Summary
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.

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

Location Keywords

OCEAN > SOUTHERN OCEAN > BRANSFIELD STRAIT CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR

Science Keywords

SOLID EARTH > SEISMOLOGY > SEISMIC PROFILE

ISO Topic Category

GEOSCIENTIFIC INFORMATION

Platform

SHIPS R/V NBP > R/V Nathaniel B. Palmer

Instrument

SEISMOMETERS

Access Constraints
unrestricted

Use Constraints
UTIG use rules apply, no commercial DB or Web use without permission.

Ancillary Keywords

Nathaniel B. Palmer

Data Set Progress

COMPLETE

Originating Center

UTX-AUSTIN/IG

Data Center

Seismic Data Center, Institute for Geophysics, University of Texas at Austin 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

JAMES AUSTIN, JR. 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 GAIL LYNN CHRISTESON Role: INVESTIGATOR Role: DIF AUTHOR 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

Related URL

Link: VIEW PROJECT HOME PAGE Description: Cruise Information NBP0002, Bransfield Strait OBS. Leg 2 collected OBS data along lines 1 to 5. Link: VIEW PROJECT HOME PAGE Description: Cruise Information NBP0007A, Bransfield Strait OBS. Leg 7A collected OBS data along Lines 6, 7, 9 and 10.

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.

Creation and Review Dates

Last DIF Revision Date: 2005-07-06

Reformat as FGDC document

View Text Only Format

[ View Brief Record ] [ Update this Record ]