L'ouverture océanique au sud de la Tasmanie durant le Paléogène et ses conséquences paléocéanographiques: Résultats préliminaires de la minéralogie des argiles (Leg ODP 189)

Translated title of the contribution: Palaeogene ocean opening south of Tasmania, and palaeoceanographic implications: Preliminary results of clay mineral analyses (ODP Leg 189)

Christian M. Robert, Neville F. Exon, James P. Kennett, Mitchell J. Malone, Henk Brinkhuis, George C.H. Chaproniere, Atsuhito Ennyu, Patrick Fothergill, Michael D. Fuller, Marianne Grauert, Peter J. Hill, Thomas R. Janecek, Daniel Clay Kelly, Jennifer C. Latimer, Kristeen Mc Gonigal Roessig, Stefan Nees, Ulysses S. Ninnemann, Dirk Nürnberg, Stephen F. Pekar, Caroline C. PellatonHelen A. Pfühl, Ursula Röhl, Stephen A. Schellenberg, Amelia E. Shevenell, Catherine E. Stickley, Noritoshi Suzuki, Yannick Touchard, Wuchang Wei, Timothy S. White

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

ODP Leg 189 was designed to test the hypothesis that opening of the Tasmanian Seaway and initiation of circumpolar circulation contributed to the thermal isolation of Antarctica, leading to the development of initial ice-sheet and oceanic thermohaline circulation. The clay assemblages of the Tasmanian region contain the traces of two tectonic stages associated with ocean opening south of the south Tasman Rise near the Palaeocene-Eocene boundary and strike-slip activity between the western Tasmanian land-bridge and Antarctica during the Late Eocene. Earliest Oligocene clays indicate that cooling of Antarctic margins and activity of western boundary circulation progressed with the regional subsidence.

Translated title of the contributionPalaeogene ocean opening south of Tasmania, and palaeoceanographic implications: Preliminary results of clay mineral analyses (ODP Leg 189)
Original languageFrench
Pages (from-to)323-329
Number of pages7
JournalComptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes
Volume332
Issue number12
StatePublished - Dec 1 2001

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Ocean Engineering

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    Robert, C. M., Exon, N. F., Kennett, J. P., Malone, M. J., Brinkhuis, H., Chaproniere, G. C. H., Ennyu, A., Fothergill, P., Fuller, M. D., Grauert, M., Hill, P. J., Janecek, T. R., Kelly, D. C., Latimer, J. C., Roessig, K. M. G., Nees, S., Ninnemann, U. S., Nürnberg, D., Pekar, S. F., ... White, T. S. (2001). L'ouverture océanique au sud de la Tasmanie durant le Paléogène et ses conséquences paléocéanographiques: Résultats préliminaires de la minéralogie des argiles (Leg ODP 189). Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes, 332(12), 323-329.