Ghent University Academic Bibliography

Advanced

Interglacial collapse of Crary Trough-Mouth Fan, Weddell Sea, Antarctica: Implications for Antarctic glacial history.

P Bart, Marc De Batist UGent and W Jokat (1999) JOURNAL OF SEDIMENTARY RESEARCH. 69(6) 1276-1289 Part B).
abstract
In this study, we investigate the stratigraphy of a troughmouth fan in the Weddell Sea to determine possible relationships between basin-floor stratigraphy and glaciation on Antarctica. Seismic data from the basin floor show a deep, broad, and elongate erosional channel filled by thick chaotic-facies deposits, basin-floor fans, and channel-levee deposits. From seismic-stratigraphy analysis of basinfloor stratigraphy, we infer that this channel formed by large-volume mass wasting sourced from poorly sorted glacial sediments from Crary Trough-Mouth Fan and Dronning Maud Land slopes. Correlation to ODP Leg 113 Site 693 suggests that the mass wasting of the slopes occurred in the early Pliocene. We surmise that collapse occurred during an early Pliocene interglacial and was related to major drawdown of the antarctic ice volume. Collapse was probably triggered by rebound and relative sea-level fall, a mathematically predicted geoidal effect related to antarctic ice-volume reduction. The record of this major ice-volume reduction is not manifest in the trough-mouth fan but rather is manifest in the basin-floor stratigraphy as a major backfilled erosional channel, which extends far beyond the trough-mouth fan.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
journal title
JOURNAL OF SEDIMENTARY RESEARCH
volume
69
issue
6) 1276-1289 Part B
Web of Science type
Article
Web of Science id
000083782600011
ISSN
1073-130X
language
English
UGent publication?
yes
classification
A1
id
175428
handle
http://hdl.handle.net/1854/LU-175428
date created
2004-01-14 13:40:00
date last changed
2016-12-19 15:38:07
@article{175428,
  abstract     = {In this study, we investigate the stratigraphy of a troughmouth fan in the Weddell Sea to determine possible relationships between basin-floor stratigraphy and glaciation on Antarctica. Seismic data from the basin floor show a deep, broad, and elongate erosional channel filled by thick chaotic-facies deposits, basin-floor fans, and channel-levee deposits. From seismic-stratigraphy analysis of basinfloor stratigraphy, we infer that this channel formed by large-volume mass wasting sourced from poorly sorted glacial sediments from Crary Trough-Mouth Fan and Dronning Maud Land slopes. Correlation to ODP Leg 113 Site 693 suggests that the mass wasting of the slopes occurred in the early Pliocene. We surmise that collapse occurred during an early Pliocene interglacial and was related to major drawdown of the antarctic ice volume. Collapse was probably triggered by rebound and relative sea-level fall, a mathematically predicted geoidal effect related to antarctic ice-volume reduction. The record of this major ice-volume reduction is not manifest in the trough-mouth fan but rather is manifest in the basin-floor stratigraphy as a major backfilled erosional channel, which extends far beyond the trough-mouth fan.},
  author       = {Bart, P and De Batist, Marc and Jokat, W},
  issn         = {1073-130X},
  journal      = {JOURNAL OF SEDIMENTARY RESEARCH},
  language     = {eng},
  number       = {6) 1276-1289 Part B},
  title        = {Interglacial collapse of Crary Trough-Mouth Fan, Weddell Sea, Antarctica: Implications for Antarctic glacial history.},
  volume       = {69},
  year         = {1999},
}

Chicago
Bart, P, Marc De Batist, and W Jokat. 1999. “Interglacial Collapse of Crary Trough-Mouth Fan, Weddell Sea, Antarctica: Implications for Antarctic Glacial History.” Journal of Sedimentary Research 69 (6) 1276-1289 Part B).
APA
Bart, P., De Batist, M., & Jokat, W. (1999). Interglacial collapse of Crary Trough-Mouth Fan, Weddell Sea, Antarctica: Implications for Antarctic glacial history. JOURNAL OF SEDIMENTARY RESEARCH, 69(6) 1276-1289 Part B).
Vancouver
1.
Bart P, De Batist M, Jokat W. Interglacial collapse of Crary Trough-Mouth Fan, Weddell Sea, Antarctica: Implications for Antarctic glacial history. JOURNAL OF SEDIMENTARY RESEARCH. 1999;69(6) 1276-1289 Part B).
MLA
Bart, P, Marc De Batist, and W Jokat. “Interglacial Collapse of Crary Trough-Mouth Fan, Weddell Sea, Antarctica: Implications for Antarctic Glacial History.” JOURNAL OF SEDIMENTARY RESEARCH 69.6) 1276-1289 Part B (1999): n. pag. Print.