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Seismic stratigraphy and evolution of the Raggatt Basin, southern Kerguelen Plateau
journal contribution
posted on 2023-05-17, 08:48 authored by Colwell, JB, Mike CoffinMike Coffin, Pigram, CJ, Davies, HL, Stagg, HMJ, Hill, PJSix 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.
History
Publication title
Marine and Petroleum GeologyVolume
5Pagination
75-81ISSN
0264-8172Department/School
Institute for Marine and Antarctic StudiesPublisher
Elsevier Sci LtdPlace of publication
The Boulevard, Langford Lane, Kidlington, Oxford, England, Oxon, Ox5 1GbRights statement
Copyright © 1988 The definitive version is available at http://www.sciencedirect.comRepository Status
- Restricted