TERTIARY TECTONIC AND VOLCANISM ON THE LO RD-HOWE RISE (SOUTH-WEST PACIFIC)

Authors
VANDEBEUQUE S AUZENDE JM LAFOY Y MISSEGUE F
Citation
S. Vandebeuque et al., TERTIARY TECTONIC AND VOLCANISM ON THE LO RD-HOWE RISE (SOUTH-WEST PACIFIC), Comptes rendus de l'Academie des sciences. Serie 2. Sciences de la terre et des planetes, 326(9), 1998, pp. 663-669
Citations number
21
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
Comptes rendus de l'Academie des sciences. Serie 2. Sciences de la terre et des planetes → ACNP
ISSN journal
12518050
Volume
326
Issue
9
Year of publication
1998
Pages
663 - 669
Database
ISI
SICI code
1251-8050(1998)326:9<663:TTAVOT>2.0.ZU;2-C
Abstract
The analysis of multibeam bathymetry, imagery and geophysical data, ac quired during the ZoNeCo 4 cruise (October 1996, on board L'Atalante) on the Lord Howe Rise, gives us evidence on two major events. One eros ional phase of the ridge is due to its emersion, from the Upper Eocene and Middle Oligocene. This phase is synchroneous with the Upper Eocen e obduction of the New Caledonian ophiolites. One volcanic phase affec ts the Lord Howe Rise from the Upper Oligocene up to the end of the su bsidence of the ridge. (C) Academie des sciences/Elsevier, Paris.