Collaborative Research: Crust-Mantle Interactions During Continental Growth and High-Pressure Rock Exhumation at an Oblique Arc-Continent Collision Zone: SE Caribbean Margin

合作研究：斜弧大陆碰撞带大陆生长和高压岩石折返过程中的壳幔相互作用：东南加勒比海边缘

• 批准号: 0003588
• 负责人: Gail Christeson
• 金额: $ 44.86万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-08-01 至 2007-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0003588&HistoricalAwards=false
• 关键词: Collaborative; Research; Crust; Mantle; Interactions

0003588PecherThis is a project to study the Caribbean-South American oblique arc-continent collision zone using various geologic (mapping, structure), geochemical (Ar-Ar and U-Pb Geochronology), and seismic (active MCS with onshore/offshore recording using OBS instruments, passive array) techniques. There will also be a geodynamic modeling study that, very innovatively, includes the dynamics of crust-mantle interaction. The overall goal of the project is to understand further the geometry and chronology of a world class, arc-continent accretion event. Seosmic/geological cross-sections are to be derived for several transects across the orogen at different ages of collision. The group of investigators include highly capable seismologists in both active and passive seismology, as well as geologists familiar with the orogenic developments on land. The cooperation with Venezuelan scientists and students is excellent. ***

这是一个利用各种地质(测绘、构造)、地球化学(Ar-Ar和U-Pb地质年代学)和地震(使用OBS仪器进行陆上/海上记录的主动MCS、被动阵列)技术来研究加勒比海-南美洲斜向弧陆碰撞带的项目。还将进行一项地球动力学建模研究，非常创新地包括地壳-地幔相互作用的动力学。该项目的总体目标是进一步了解世界级的弧陆吸积事件的几何学和年代学。在不同的碰撞时期，将得到几个横跨造山带的断面的地震/地质截面。调查组包括在主动地震学和被动地震学方面都很有能力的地震学家，以及熟悉陆地造山带发展的地质学家。与委内瑞拉科学家和学生的合作非常好。***