Magma storage and transport during recent eruptions of El Hierro (Canary Islands)

El Hierro（加那利群岛）最近喷发期间的岩浆储存和运输

• 批准号: 233507167
• 负责人: Privatdozent Dr. Andreas Klügel
• 金额: --
• 依托单位: Fachgebiet Petrologie der Ozeankruste
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/233507167?language=en
• 关键词: Magma; storage; transport; during; recent

The submarine 2011/2012 El Hierro eruption was a lucky chance for geosciences. The detailed monitoring of pre- and syn-eruptive seismicity and deformation allowed for a reconstruction of magma movement at depth. During eruption a number of glassy basalts that are suitable for geothermobarometry could be sampled. We propose petrological investigations of these basalts to determine the depths of magma storage and transport and to compare them to the seismic data, which is a novel approach for the Canary Islands. This will for the first time permit the validation of petrologically based models of magma plumbing beneath intraplate volcanoes such as El Hierro and La Palma. In addition barometric investigations of prehistoric subaerial basalts shall be carried out and the data compared to the depths of the actual eruption. The results of the proposed project will help to assess the validity of geobarometric data from previous and future studies at other volcanoes, which is a prerequisite for a better understanding of these volcanoes and for hazard assessment during future seimic crises.

2011/2012年的海底火山喷发对地球科学来说是一个幸运的机会。对喷发前和喷发时地震活动和变形的详细监测，使我们能够在深部重建岩浆运动。在喷发期间，可以取样到许多适合于地温压测量的玻璃状玄武岩。我们建议对这些玄武岩进行岩石学研究，以确定岩浆储存和运输的深度，并将其与地震数据进行比较，这是加那利群岛的一种新方法。这将首次使基于岩石学的岩浆管道模型得以验证，这些模型位于耶罗火山和拉帕尔马火山等板内火山之下。此外，还应对史前陆上玄武岩进行气压调查，并将数据与实际喷发深度进行比较。拟议项目的结果将有助于评估以前和今后在其他火山进行的研究所得的地球气压数据的有效性，这是更好地了解这些火山和在未来地震危机期间进行危害评估的先决条件。

项目成果

Deep intrusions, lateral magma transport and related uplift at ocean island volcanoes

• DOI: 10.1016/j.epsl.2015.09.031
• 发表时间: 2015-12-01
• 期刊: EARTH AND PLANETARY SCIENCE LETTERS
• 影响因子: 5.3
• 作者: Kluegel, Andreas;Longpre, Marc-Antoine;Stix, John
• 通讯作者: Stix, John