New paleomagnetic results from Blind River: Revised magnetostratigraphy and tectonic rotation of the Marlborough region, South Island, New Zealand
- 2 April 1989
- journal article
- research article
- Published by Taylor & Francis in New Zealand Journal of Geology and Geophysics
- Vol. 32 (2), 191-196
- https://doi.org/10.1080/00288306.1989.10427581
Abstract
Part of the Upper Miocene-Lower Pliocene mudstone section at Blind River, northern Marlborough, which was the subject of a paleomagnetic study by Kennett and Watkins in 1974, has been resampled and the data reinterpreted. The new results do not concur entirely with those of Kennett and Watkins. In particular, we do not find the uppermost normal event of their record. This implies a more uniform deposition rate and a later date of 5.6 m.y. for the first occurrence of Globorotalia conomiozea in the section. The new data also show a declination anomaly of 36 ± 4° to the east. This is thought to be due to clockwise rotation within the active tectonic belt of New Zealand, between the Pacific and Australian plates. This declination anomaly is slightly larger than those reported from sites in the northern part of the tectonic belt, suggesting that the deformation is more complex than a simple block rotation.Keywords
This publication has 13 references indexed in Scilit:
- Large tectonic rotation of part of New Zealand in the last 5 MaEarth and Planetary Science Letters, 1986
- Late Miocene–Early Pliocene stratigraphy and paleoceanography of the South Atlantic and southwest Pacific oceans: A synthesisPaleoceanography and Paleoclimatology, 1986
- Invariant and changing transitional field configurations in a sequence of geomagnetic reversalsNature, 1984
- Reconstructions of the New Zealand region for the NeogenePalaeogeography, Palaeoclimatology, Palaeoecology, 1984
- Late miocene magnetobiostratigraphy of CreteMarine Micropaleontology, 1984
- Paleomagnetic record of two successive Miocene geomagnetic reversals in western CreteEarth and Planetary Science Letters, 1981
- Globorotalia inflatalineage andG. crassaformisfrom Blind River, New Zealand: recognition, relationship, and use in uppermost Miocene-lower Pliocene biostratigraphyNew Zealand Journal of Geology and Geophysics, 1980
- Late Cenozoic stable isotope stratigraphy and paleoceanography of DSDP sites from the east equatorial and central north Pacific OceanEarth and Planetary Science Letters, 1979
- Application of Carbon Isotope Stratigraphy to Late Miocene Shallow Marine Sediments, New ZealandScience, 1979
- Late Miocene—Early Pliocene Paleomagnetic Stratigraphy, Paleoclimatology, and Biostratigraphy in New ZealandGSA Bulletin, 1974