Collaborative Research: SEA-CALIPSO: An Offshore/Onshore Tomography and Magma-Chamber Seismic Imaging Experiment on Montserrat

合作研究：SEA-CALIPSO：蒙特塞拉特岛海上/陆上层析成像和岩浆室地震成像实验

• 批准号: 0440025
• 负责人: Glen Mattioli
• 金额: --
• 依托单位: University of Arkansas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0440025&HistoricalAwards=false
• 关键词: Collaborative; Research; SEA; CALIPSO; Offshore

The CALIPSO Project (Caribbean Andesitic Lava Island Precision Seismo-geodetic Observatory) on Montserrat, WI has aimed to investigate the dynamics of the entire magmatic system of Soufriere Hills Volcano, and to improve our understanding of magma dynamics for andesite volcanoes that make up most of the Earth's Ring of Fire. An exciting new component of this is the SEA-CALIPSO experiment, involving a Seismic Experiment with Airgun-source. This is an 'onshore/offshore' seismic experiment to image the magma chamber and deep crust of Soufriere Hills Volcano. This data acquisition phase of this project will be carried out in Spring 2005, with combined support of NSF (Geophysics and the Americas Program in OISE) and the National Environmental Research Council (NERC) of the UK. This collaborative project involves scientists and students from five US institutions (U Arkansas, Carnegie Institution of Washington, Cornell, Duke, Penn State), Bristol and Leeds universities in the UK, and the Montserrat Volcano Observatory (MVO). Prof. B. Voight is Project Director. The US group is being supported by NSF, whereas the other groups have gained support from UK agencies. The MVO will provide data and key logistical support to the project. The project entails circling Montserrat with a UK research vessel setting off airgun shocks, and recording the seismic wave arrivals, and natural earthquakes, by ~100 IRIS/PASSCAL seismic recorders. The deployment will last for a 3-4 month period centered approximately on the May 2005 airgun survey. These will be critical data, because modeling and interpretation of these datasets can be used to generate tomographic and reflection imaging of the magmatic system. The research will reveal important internal features of a currently erupting andesitic volcano, which is of significant value to the studies of volcanology, petrology and geochemistry, and geophysics. The investigators expect major advances in understanding magma genesis and transport, and 'how volcanoes work'. Five US institutions are involved, and at least six graduate students will be trained in deformation and seismic modeling, onshore/offshore seismic imaging, and many undergraduates will receive research experience. The importance of understanding such magma systems is clear, as this type of volcanism presents serious hazards and causes significant societal and economic damage.

威斯康星州蒙特塞拉特（Montserrat）上的卡利匹斯索项目（加勒比海熔岩岛精密地震天文台）旨在调查Soufriere Hills火山的整个岩浆系统的动力学，并提高我们对岩浆动力学的理解，以构成地球上燃料的Andesite Volcanoes。 Sea-Calipso实验是一个令人兴奋的新组成部分，涉及对气枪源的地震实验。 这是一个“陆上/海上”的地震实验，可以对岩浆室和苏弗里尔山火山的深层地壳进行想象。该项目的数据采集阶段将于2005年春季进行，并由NSF（OISE的地球物理学和美洲计划）和英国国家环境研究委员会（NERC）共同支持。该合作项目涉及来自五个美国机构（U阿肯色州，华盛顿卡内基机构，康奈尔大学，杜克大学，宾夕法尼亚州立大学），英国布里斯托尔和利兹大学的科学家和学生，以及蒙特塞拉特火山天文台（MVO）。 B. Voight教授是项目总监。美国集团由NSF提供支持，而其他团体则获得了英国机构的支持。 MVO将为项目提供数据和关键后勤支持。该项目需要大约100 iris/passcal地震记录器，并带有英国研究船盘旋蒙特塞拉特（Montserrat），并记录了地震浪潮到达和自然地震。部署将持续3-4个月，大约集中在2005年5月的气枪调查中。这些将是关键数据，因为这些数据集的建模和解释可用于生成岩浆系统的层析成像和反射成像。 该研究将揭示当前爆发的安第斯山脉火山的重要内部特征，这对于火山学，岩石学和地球化学以及地球物理学的研究具有重要价值。研究人员预计，了解岩浆起源和运输以及“火山的工作原理”方面的重大进展。参与了五个美国机构，至少有六名研究生将接受变形和地震建模，陆上/离岸地震成像的培训，许多本科生将获得研究经验。理解这种岩浆系统的重要性是明显的，因为这种火山构成了严重的危害，并造成了重大的社会和经济损害。