Skip to Main content Skip to Navigation
Journal articles

Earliest Eocene (53 Ma) convergence in the Southwest Pacific; evidence from pre-obduction dikes in the ophiolite of New Caledonia.

Abstract : Uncertainty about timing and location of the initiation of convergence in the western and south western Pacific greatly hinders accurate plate tectonic reconstructions of subduction systems in that area. The chemistry and age of dikes intruding mantle peridotite in the ophiolite of New Caledonia infer that subduction-related magmatism began prior to 53 Ma. These new results infer that obduction in the Southwest Pacific is unrelated to the reorientation of the Pacific plate motion that occurred at ca. 43 Ma and confirm new interpretations showing that changes in mantle flow, hotspot and plate motion may have occurred as soon as late Paleocene or early Eocene.
Document type :
Journal articles
Complete list of metadatas

Cited literature [24 references]  Display  Hide  Download

https://hal-insu.archives-ouvertes.fr/hal-00094796
Contributor : Nathalie Pothier <>
Submitted on : Friday, September 15, 2006 - 8:08:47 AM
Last modification on : Thursday, November 14, 2019 - 1:46:02 PM
Long-term archiving on: : Tuesday, April 6, 2010 - 12:58:00 AM

Identifiers

  • HAL Id : hal-00094796, version 1

Collections

Citation

Dominique Cluzel, Sébastien Meffre, Pierre Maurizot, Anthony J. Crawford. Earliest Eocene (53 Ma) convergence in the Southwest Pacific; evidence from pre-obduction dikes in the ophiolite of New Caledonia.. Terra Nova, Wiley-Blackwell, 2006, 18 (6), pp.395-402. ⟨hal-00094796⟩

Share

Metrics

Record views

265

Files downloads

390