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Seismic stratigraphy and evolution of the Raggatt Basin, southern Kerguelen Plateau


Colwell, JB and Coffin, MF and Pigram, CJ and Davies, HL and Stagg, HMJ and Hill, PJ, Seismic stratigraphy and evolution of the Raggatt Basin, southern Kerguelen Plateau, Marine and Petroleum Geology, 5, (1) pp. 75-81. ISSN 0264-8172 (1988) [Refereed Article]

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Copyright 1988 The definitive version is available at

DOI: doi:10.1016/0264-8172(88)90041-4


Six major seismic stratigraphic sequences in the Raggatt Basin on the southern Kerguelen Plateau overlie a basement complex of Cretaceous or greater age. The complex includes dipping reflectors which were apparently folded and eroded before the Raggatt Basin developed. The seismic stratigraphic sequences include a basal unit F, which fills depressions in basement; a thick unit, E, which has a mounded upper surface (volcanic or carbonate mounds); a depression-filling unit, D; a thick unit C which is partly Middle to Late Eocene; and two post-Eocene units, A and B, which are relatively thin and more limited in areal extent than the underlying sequences. A mid or Late Cretaceous erosional episode was followed by subsidence and basin development, interrupted by major erosion in the mid Tertiary. Late Cenozoic sedimentation was affected by vigorous ocean currents.

Item Details

Item Type:Refereed Article
Keywords:Southern Indian Ocean; Kerguelen Plateau; Raggatt Basin; Cretaceous; seismic stratigraphy; tectonic evolution; ocean currents
Research Division:Earth Sciences
Research Group:Geology
Research Field:Marine geoscience
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the earth sciences
UTAS Author:Coffin, MF (Professor Mike Coffin)
ID Code:73891
Year Published:1988
Web of Science® Times Cited:13
Deposited By:Research Division
Deposited On:2011-10-27
Last Modified:2011-11-03
Downloads:1 View Download Statistics

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