Cretaceous‐Tertiary tectonic history of the Fiordland margin, New Zealand
| Autor: | R. H. Herzer, Rupert Sutherland, Ray Wood, Anne Melhuish |
|---|---|
| Rok vydání: | 2000 |
| Předmět: | |
| Zdroj: | New Zealand Journal of Geology and Geophysics. 43:289-302 |
| ISSN: | 1175-8791 0028-8306 |
| DOI: | 10.1080/00288306.2000.9514887 |
| Popis: | Integration of regional seismic reflection data with swath bathymetry and imagery data and onshore geology has revealed the complex sequence of tectonic events that have affected the development of the offshore Fiordland margin. There are no core or dredge samples to constrain the timing of these events, but comparison with recent work on the Tertiary evolution of the Australia‐Pacific plate margin provided a temporal framework for the subsurface interpretation. The integrated dataset allows the prediction of the age and likely lithology of the seismic sequences, the timing of tectonic events, and details of how structures along the Fiordland plate margin developed in response to changes in relative plate motion direction. We conclude that Cretaceous rifting in the Tasman Sea formed half‐grabens along Caswell High and beneath the Fiordland Basin. Up to several kilometres of Cretaceous to Early Eocene sediments, probably terrestrial and marginal marine sediments derived from the Campbell Plateau, ... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|