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      Uplift in the Fiordland region, New Zealand: Implications for incipient subduction

      House, Martha A.; Gurnis, Michael; Kamp, Peter J.J.; Sutherland, Rupert
      DOI
       10.1126/science.1075328
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      House, M.A., Gurnis, M., Kamp, P.J.J. & Sutherland, R. (2002). Uplift in the Fiordland region, New Zealand: Implications for incipient subduction. Science, 297(5589), 2038-2041.
      Permanent Research Commons link: https://hdl.handle.net/10289/3567
      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.
      Date
      2002
      Type
      Journal Article
      Publisher
      American Association for the Advancement of Science
      Collections
      • Science and Engineering Papers [3121]
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