Quantifying magmatic processes of pantellerites from Mayor Island (Tuhua), Taupo Volcanic Zone, New Zealand

马约尔岛是新西兰的一个第四纪岛，位于陶波火山带以西。该岛呈现出各种各样的喷发风格和规模，包括灾难性的行为，如普林尼火山喷发和火山口形成事件。该研究项目旨在量化马约尔岛下方泛辉岩岩浆成因和上升的压力-温度条件。将采用一系列方法来调查这一目标，包括实地观察、实验室研究和模拟。实地工作将包括详细和有针对性的分析，因为新创建的该岛地质图允许清楚地了解该岛的整体地质情况，而无需进行大规模测绘。实验室工作将包括岩石学和结构分析，静态和动态高P-T实验，以及流变学实验。一旦这项工作完成，结果可以应用于模拟岩浆的流动特性，并探索在爆炸阶段和流出阶段之间转变的潜在控制因素。这项工作的结果将为马约尔岛形成一个整体模式。这将在当地具有重要意义，因为它将有助于限制未来火山动荡情况下的未来监测工作。尽管平均休息期为4000年，但由于最后一次普林尼火山爆发是在约6300年前，因此很有可能发生火山动荡。此外，研究结果可能具有全球重要性，因为对该岛屿的进一步了解可以应用于世界各地知之甚少的泛泰勒特群岛。

Mayor island is a Quaternary island of New Zealand found westwards of the Taupo Volcanic Zone. The island exhibits a wide range of eruption styles and sizes, including catastrophic behaviour such as Plinian eruptions and caldera forming events.This research project aims to quantify the pressure-temperature conditions of the pantellerite magma genesis and ascent that occurs beneath Mayor Island. A range of methods will be employed to investigate this aim, including, field observations, laboratory studies and modelling. Fieldwork will include detailed and targeted analysis due to the newly created geological map of the island allowing for the overall geology of the island to be clearly understood without the need for widescale mapping. Laboratory work will include petrological and textural analysis, both static and dynamic high P-T experiments, and rheological experiments. Once this work has been done, the results can be applied to model the flow properties of magma and explore the underlying controls on the transition between explosive and effusive phases.The outcome of this work will result in an overall model for Mayor Island. This will subsequently become locally important as it will help to constrain future monitoring efforts in the case of future volcanic unrest, which is considered to be fairly likely due to the last Plinian eruption being ~6300 years ago despite an average repose period of 4000 years. Furthermore, the outcomes may have global importance because the improved understanding of this island could be applied to the poorly understood pantellerite islands throughout the world.