*************************************************************************** PhD opportunity at the University of Auckland, New Zealand From: Jan Lindsay <j.lindsay@xxxxxxxxxxxxxx> *************************************************************************** Crystallisation history of rhyolite magmas at Tarawera volcano, New Zealand Tarawera volcano is part of the Okataina caldera, New Zealand. It has been active in the late Quaternary on a millennial timescale, with eruptions involving multiple batches of rhyolite magma triggered by basalt intrusion. It is the most recently active rhyolite volcano in New Zealand, being the site of a rhyolite plinian eruption at AD1314 and a basaltic eruption in AD 1886. The high frequency of rhyolite magma recharge makes the volcano an excellent opportunity to investigate the longevity of crystal mush, and the rates at which it is re-activated into eruption. This is important in forecasting future activity and identifying petrological precursor phenomena. The PhD project is part of a joint effort between University of Auckland (Phil Shane, Jan Lindsay), University of California Los Angeles (Axel Schmitt) and GNS Science, using state-of-the-art geochemical instruments to examine elemental and isotopic patterns recorded in crystals. Laboratory work will involve Th/U age profiling and Ti thermometry of zircon crystals. We seek a motivated student committed to independent research with a background in geochemistry or petrology. Stipend for 3 years at NZ $ 25k per annum (tax free) plus fees. Applicants should provide a CV including grades, statement of motivation, and contact details of 3 referees. Deadline March 31, 2009. Further information and applications to Phil Shane (pa.shane@xxxxxxxxxxxxxx). ============================================================== To unsubscribe from the volcano list, send the message: signoff volcano to: listserv@xxxxxxx, or write to: volcano-request@xxxxxxxx To contribute to the volcano list, send your message to: volcano@xxxxxxxx Please do not send attachments. ==============================================================
