The University of Southampton
University of Southampton Institutional Repository

Structure and structural development of the Havre Trough (SW Pacific)

Structure and structural development of the Havre Trough (SW Pacific)
Structure and structural development of the Havre Trough (SW Pacific)
Northeast of New Zealand the Pacific plate is obliquely subducted beneath the overriding Australian plate. Major differences appear in the oblique-convergence-driven structures that occur along the plate boundary. While strike-slip component of convergence is accommodated in the forearc domain to the south at the eastern North Island margin, we here substantiate that at least part of the strike-slip component is accommodated within the back arc Havre Trough to the north offshore New Zealand. New swath bathymetry and structural data collected in the Havre back arc domain show that the basin as a whole displays oblique to basin axis structures that allow considering the basin to be the loci of extensive tectonics associated with dextral displacement of the Kermadec Arc Block relative to the Australian plate. Therefore, where the two plates are oceanic, the oblique convergence between Pacific and Australian plates is partitioned at the subduction trench for its normal-to-trench component and at the rear of the Kermadec Arc Block for part or all of its along-strike component where it is intimately associated with extensional rifting within the back arc domain. The kinematic pattern of Australian-Pacific plate boundary northeast of New Zealand that straddles a limit between continental and oceanic lithosphere allows addressing the specificity of the structural development, the deformation distribution, and the assessment of movement components that occur in a back arc basin associated with oblique convergence.
0148-0227
art.2143
Delteil, J.
94a263c6-14df-4bca-aa2a-bcc68714a6fb
Ruellan, E.
efd7b2cb-ff69-4199-aabc-f6d5e7ef9113
Wright, I.C.
be2a8931-3932-4f1e-b387-43e3652bf3fc
Matsumoto, T.
7d7d9ed5-6095-4b70-b822-d64a3c8889f7
Delteil, J.
94a263c6-14df-4bca-aa2a-bcc68714a6fb
Ruellan, E.
efd7b2cb-ff69-4199-aabc-f6d5e7ef9113
Wright, I.C.
be2a8931-3932-4f1e-b387-43e3652bf3fc
Matsumoto, T.
7d7d9ed5-6095-4b70-b822-d64a3c8889f7

Delteil, J., Ruellan, E., Wright, I.C. and Matsumoto, T. (2002) Structure and structural development of the Havre Trough (SW Pacific). Journal of Geophysical Research, 107 (B7), art.2143. (doi:10.1029/2001JB000494).

Record type: Article

Abstract

Northeast of New Zealand the Pacific plate is obliquely subducted beneath the overriding Australian plate. Major differences appear in the oblique-convergence-driven structures that occur along the plate boundary. While strike-slip component of convergence is accommodated in the forearc domain to the south at the eastern North Island margin, we here substantiate that at least part of the strike-slip component is accommodated within the back arc Havre Trough to the north offshore New Zealand. New swath bathymetry and structural data collected in the Havre back arc domain show that the basin as a whole displays oblique to basin axis structures that allow considering the basin to be the loci of extensive tectonics associated with dextral displacement of the Kermadec Arc Block relative to the Australian plate. Therefore, where the two plates are oceanic, the oblique convergence between Pacific and Australian plates is partitioned at the subduction trench for its normal-to-trench component and at the rear of the Kermadec Arc Block for part or all of its along-strike component where it is intimately associated with extensional rifting within the back arc domain. The kinematic pattern of Australian-Pacific plate boundary northeast of New Zealand that straddles a limit between continental and oceanic lithosphere allows addressing the specificity of the structural development, the deformation distribution, and the assessment of movement components that occur in a back arc basin associated with oblique convergence.

Full text not available from this repository.

More information

Published date: 2002

Identifiers

Local EPrints ID: 54939
URI: http://eprints.soton.ac.uk/id/eprint/54939
ISSN: 0148-0227
PURE UUID: 2c8975d4-41df-4012-9c24-01ebf8511e83

Catalogue record

Date deposited: 23 Jul 2008
Last modified: 13 Mar 2019 20:37

Export record

Altmetrics

Contributors

Author: J. Delteil
Author: E. Ruellan
Author: I.C. Wright
Author: T. Matsumoto

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×