Published September 2019
| Version v1
Journal article
Ar-Ar constraints on the timing of Havre Trough opening and magmatism
Creators
- 1. National Institute of Water and Atmospheric Research, Wellington (New Zealand)
- 2. GNS Science, Lower Hutt (New Zealand)
- 3. Department of Earth and Planetary Sciences, California University, Santa Cruz, CA (United States)
- 4. Canterbury University, Christchurch (New Zealand)
- 5. Volcano Science Center, Geological Survey, Menlo Park, CA (United States)
- 6. Geochronology Research Laboratory, New Mexico Tech, Socorro, NM (United States)
- 7. Department of Geoscience, Wisconsin-Madison University, Madison, WI (United States)
- 8. School of Geography, Environment and Earth Science, Victoria University of Wellington, Wellington (New Zealand)
- 9. Alaska Science Center, Geological Survey, Anchorage, AK (United States)
Description
The age and style of opening of the Havre Trough back-arc system is uncertain due to a lack of geochronologic constraints for the region. 40Ar/39Ar dating of 19 volcanic rocks from across the southern Havre Trough and Kermadec Arc was conducted in three laboratories to provide age constraints on the system. The results are integrated and interpreted as suggesting that this subduction system is young (<2 Ma) and coeval with opening of the continental Taupo Volcanic Zone of New Zealand. Arc magmatism was broadly concurrent across the breadth of the Havre Trough. (author)
Additional details
Publishing Information
- Journal Title
- New Zealand Journal of Geology and Geophysics
- Journal Volume
- 62
- Journal Issue
- 3
- Journal Page Range
- p. 371-377
- ISSN
- 0028-8306
INIS
- Country of Publication
- New Zealand
- Country of Input or Organization
- New Zealand
- INIS RN
- 52001861
- Subject category
- S58: GEOSCIENCES;
- Descriptors DEI
- ARGON 39; ARGON 40; ISOTOPE DATING; MAGMATISM; NEW ZEALAND; OCEANOGRAPHY
- Descriptors DEC
- AGE ESTIMATION; ARGON ISOTOPES; AUSTRALASIA; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DEVELOPED COUNTRIES; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; ISLANDS; ISOTOPES; LIGHT NUCLEI; NUCLEI; RADIOISOTOPES; STABLE ISOTOPES; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- 35 refs., 4 figs., 1 tab.