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Synthetic seismograms and spectral cycles on the Andvord and Schollaert Drifts: Antarctic Peninsula

Open-File Report 2007-1047-SRP-018

By:
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DOI: 10.3133/ofr20071047SRP018

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Abstract

The geological significance of seismic reflectors within large sediment deposits of the Gerlache Strait (Schollaert Drift) and the mouth of Andvord Bay (Andvord Drift) has been examined using synthetic seismograms. The seismograms generated from the physical properties in jumbo piston cores taken at each of these drifts (28JPC and 18JPC respectively) show good agreement with the field seismic profiles when core disturbance is taken into consideration. Both cores suggest an under-sampling of up to 30% (or compaction) during coring. This leads to inaccuracy in the evaluation of past sedimentation rates and thus interpretations on these rates may be biased.

Geospatial Extents

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Synthetic seismograms and spectral cycles on the Andvord and Schollaert Drifts: Antarctic Peninsula
Series title:
Open-File Report
Series number:
2007-1047-SRP-018
DOI:
10.3133/ofr20071047SRP018
Year Published:
2007
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Description:
5 p.
Larger Work Type:
Report
Larger Work Subtype:
USGS Numbered Series
Larger Work Title:
Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007
Other Geospatial:
Antarctica
Additional Online Files(Y/N):
N