Ar-Ar age constraints on the timing of Havre Trough opening and magmatism
October 19, 2019
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.
Citation Information
| Publication Year | 2019 |
|---|---|
| Title | Ar-Ar age constraints on the timing of Havre Trough opening and magmatism |
| DOI | 10.1080/00288306.2019.1602059 |
| Authors | Richard Wysoczanski, Graham S. Leonard, James F. Gill, Ian Wright, Andrew T. Calvert, William McIntosh, Brian Jicha, John A Gamble, Christian Timm, Monica Handler, Elizabeth Kathleen Drewes, Alex Zohrab |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | New Zealand Journal of Geology and Geophysics |
| Index ID | 70215419 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | Volcano Science Center |