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Seismic stratigraphy of the Raggatt Basin, southern Kerguelen Plateau: Tectonic and paleoceanographic implications
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1990
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Marine GeologyEngineeringStructural GeologySouthern Kerguelen PlateauSeismic StratigraphyGeographySedimentary GeologyRue René DescartesQuaternary Tectonic DeformationEconomic GeologyGeologyEarth SciencesRaggatt BasinOrogenyEarth ScienceRegional GeologyIntegrated StratigraphyTectonics
Research Article| May 01, 1990 Seismic stratigraphy of the Raggatt Basin, southern Kerguelen Plateau: Tectonic and paleoceanographic implications MILLARD F. COFFIN; MILLARD F. COFFIN 1Bureau of Mineral Resources, Geology and Geophysics, GPO Box 378, Canberra, ACT 2601 Australia Search for other works by this author on: GSW Google Scholar MARC MUNSCHY; MARC MUNSCHY 2Institut de Physique du Globe, 5 rue René Descartes, 67084 Strasbourg, France Search for other works by this author on: GSW Google Scholar JAMES B. COLWELL; JAMES B. COLWELL 1Bureau of Mineral Resources, Geology and Geophysics, GPO Box 378, Canberra, ACT 2601 Australia Search for other works by this author on: GSW Google Scholar ROLAND SCHLICH; ROLAND SCHLICH 2Institut de Physique du Globe, 5 rue René Descartes, 67084 Strasbourg, France Search for other works by this author on: GSW Google Scholar HUGH L. DAVIES; HUGH L. DAVIES 1Bureau of Mineral Resources, Geology and Geophysics, GPO Box 378, Canberra, ACT 2601 Australia Search for other works by this author on: GSW Google Scholar ZHI-GANG LI ZHI-GANG LI 2Institut de Physique du Globe, 5 rue René Descartes, 67084 Strasbourg, France Search for other works by this author on: GSW Google Scholar Author and Article Information MILLARD F. COFFIN 1Bureau of Mineral Resources, Geology and Geophysics, GPO Box 378, Canberra, ACT 2601 Australia MARC MUNSCHY 2Institut de Physique du Globe, 5 rue René Descartes, 67084 Strasbourg, France JAMES B. COLWELL 1Bureau of Mineral Resources, Geology and Geophysics, GPO Box 378, Canberra, ACT 2601 Australia ROLAND SCHLICH 2Institut de Physique du Globe, 5 rue René Descartes, 67084 Strasbourg, France HUGH L. DAVIES 1Bureau of Mineral Resources, Geology and Geophysics, GPO Box 378, Canberra, ACT 2601 Australia ZHI-GANG LI 2Institut de Physique du Globe, 5 rue René Descartes, 67084 Strasbourg, France Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1990) 102 (5): 563–579. https://doi.org/10.1130/0016-7606(1990)102<0563:SSOTRB>2.3.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation MILLARD F. COFFIN, MARC MUNSCHY, JAMES B. COLWELL, ROLAND SCHLICH, HUGH L. DAVIES, ZHI-GANG LI; Seismic stratigraphy of the Raggatt Basin, southern Kerguelen Plateau: Tectonic and paleoceanographic implications. GSA Bulletin 1990;; 102 (5): 563–579. doi: https://doi.org/10.1130/0016-7606(1990)102<0563:SSOTRB>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract During Cenozoic and late Mesozoic time, sediment accumulated in the Raggatt Basin on the southern Kerguelen Plateau. We describe the seismic stratigraphy of the Raggatt Basin, utilizing multichannel seismic (MCS) data obtained by the Bureau of Mineral Resources, Geology and Geophysics (Australia) and the Institut de Physique du Globe de Strasbourg (France). Seven major seismic stratigraphic sequences in the Raggatt Basin overlie a basement complex of Early Cretaceous age. The underlying basement complex is characterized by two types of seismic images: acoustic basement and a layered basement which includes dipping reflectors. The seismic stratigraphic sequences include terrestrial and shallow-water units K1 and K2 of Early to Late Cretaceous age, which fill depressions in the basement; a thick unit, K3, of Late Cretaceous to Paleocene age, which is of mixed shallow-water and open-marine facies and in places has a mounded (carbonate) upper surface; a depression-filling pelagic deposit, P1, of Late Cretaceous to Eocene age; a thick pelagic unit, P2, which is mainly Eocene in age; and two post-Eocene pelagic sequences, PN1 and NQ1, which are relatively thin and more limited in areal extent than the underlying sequences. Highlights in the geologic history of the Raggatt Basin include formation and erosion of the basement complex in a subaerial or shallow-water environment in Early Cretaceous time; differential subsidence, probably thermal in origin, and development of carbonate mounds and a major western boundary transform fault in Late Cretaceous time; renewed subsidence near the Cretaceous-Tertiary boundary possibly related to formation of the Labuan Basin/Diamantina Zone by sea-floor spreading; and vigorous Antarctic Circumpolar Current activity beginning by Oligocene time, probably related to the breakup of the northern Kerguelen Plateau and Broken Ridge. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.