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Uplift in the Fiordland Region, New Zealand: Implications for Incipient Subduction

House, M. A. and Gurnis, M. and Kamp, P. J. J. and Sutherland, R. (2002) Uplift in the Fiordland Region, New Zealand: Implications for Incipient Subduction. Science, 297 (5589). pp. 2038-2041. ISSN 0036-8075. http://resolver.caltech.edu/CaltechAUTHORS:20121205-103634787

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Abstract

Low-temperature thermochronometry reveals regional Late Cenozoic denudation in Fiordland, New Zealand, consistent with geodynamic models showing uplift of the overriding plate during incipient subduction. The data show a northward progression of exhumation in response to northward migration of the initiation of subduction. The locus of most recent uplift coincides with a large positive Bouguer gravity anomaly within Fiordland. Thermochronometrically deduced crustal thinning, anomalous gravity, and estimates of surface uplift are all consistent with ∼2 kilometers of dynamic support. This amount of dynamic support is in accord with geodynamic predictions, suggesting that we have dated the initiation of subduction adjacent to Fiordland.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1126/science.1075328 DOIUNSPECIFIED
http://www.sciencemag.org/content/297/5589/2038PublisherUNSPECIFIED
Additional Information:© 2003 American Association for the Advancement of Science. Received for publication 21 June 2002; accepted for publication 12 August 2002. Supported by NSF grant EAR-0003558 to M. A. H. and M. G. We thank J. Braun for discussions and J. Braun and T. Ehlers for access to software used in the modeling. Comments from three anonymous reviewers greatly improved the manuscript.
Group:Seismological Laboratory
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Funding AgencyGrant Number
NSFEAR-0003558
Record Number:CaltechAUTHORS:20121205-103634787
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20121205-103634787
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:35819
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:05 Dec 2012 20:53
Last Modified:15 Sep 2017 04:24

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