Ar-Ar age constraints on the timing of Havre Trough opening and magmatism
New Zealand Journal of Geology and Geophysics
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Abstract
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.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Ar-Ar age constraints on the timing of Havre Trough opening and magmatism |
| Series title | New Zealand Journal of Geology and Geophysics |
| DOI | 10.1080/00288306.2019.1602059 |
| Volume | 62 |
| Issue | 3 |
| Year Published | 2019 |
| Language | English |
| Publisher | Royal Society of New Zealand |
| Contributing office(s) | Volcano Science Center |
| Description | 7 p. |
| First page | 371 |
| Last page | 377 |
| Country | New Zealand |
| Other Geospatial | Kermadec Arc–Havre Trough |
| Google Analytic Metrics | Metrics page |