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NI MagmaStress: Quantifying the effect of crustal stress states on the style and timing of magmatism in the Southern Volcanic Zone, Chile

NI MagmaStress：量化地壳应力状态对智利南部火山带岩浆活动的类型和时间的影响

基本信息

批准号：
NE/S007520/1
负责人：
Katy Chamberlain
金额：
$ 9.72万
依托单位：
University of Derby
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2018
资助国家：
英国
起止时间：
2018 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=NE%2FS007520%2F1
关键词：
NI MagmaStress Quantifying effect crustal

项目摘要

Volcanic eruptions are an ever-present hazard facing society both in terms of their immediate devastation, but also global disruption to flights, trade and economic development. While petrological insights into magmatic processes are possible following an eruption, as yet there exists no way to link present day volcano-monitoring techniques to an understanding of the magmatic plumbing system, and its effects on the duration, size and magnitude of the volcanic eruptions prior to and during volcanic crises.This proposal seeks to establish a multidisciplinary team of Earth scientists to attempt to link the geophysical observations of upper crustal stress state (compression, extension, transtension) with petrological inferences of magma storage conditions. Once established, this team will look to undertake some initial data collection of the time it takes for magma to rise and be erupted, at carefully selected target volcanoes which are known to be in different stress states. Longer-term, this new team of experts will look to use the initial data collected from this Global Partnerships Seedcorn Fund to establish a series of crustal stress-magmatism archetypes to be tested and applied at volcanic arcs worldwide. There is potential that in the future, timescales between unrest and eruption at poorly-monitored volcanoes could be better anticipated based on volcanism-stress archetypes coupled with remote observations of upper crustal stress states.

火山喷发是社会面临的一种无处不在的危险，不仅是直接的破坏，也是对全球航班、贸易和经济发展的干扰。虽然在火山喷发后有可能从岩石学上洞察岩浆过程，但目前还没有办法将目前的火山监测技术与了解岩浆管道系统及其对火山爆发前和火山爆发期间火山喷发的持续时间、规模和规模的影响联系起来。这一提议试图建立一个由地球科学家组成的多学科团队，试图将地壳上部应力状态(挤压、伸展、应变)的地球物理观测与岩浆储存条件的岩石学推断联系起来。一旦成立，这个团队将寻求对精心挑选的已知处于不同应力状态的目标火山进行一些关于岩浆上升和喷发所需时间的初步数据收集。从长远来看，这个新的专家小组将寻求利用从这一全球伙伴关系种子基金收集的初步数据，建立一系列地壳应力-岩浆作用原型，以便在世界各地的火山弧上进行测试和应用。有可能在未来，根据火山活动-压力原型以及对地壳上部应力状态的远程观测，可以更好地预测监测不佳的火山从动乱到喷发之间的时间尺度。