Collaborative Research: TAIGER's Tale: Tectonics of Subduction to Collision

合作研究：TAIGER 的故事：俯冲到碰撞的构造

• 批准号: 1009691
• 负责人: David Okaya
• 金额: $ 24.72万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-10-01 至 2013-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1009691&HistoricalAwards=false
• 关键词: Collaborative; Research; TAIGER; Tale; Tectonics

The TAIGER (Taiwan Integrated Geodynamics Research) project is a joint USA-Taiwan program that seeks to model the complex collision processes and the tectonic development of Taiwan, based on extensive observation. Funded by the NSF Continental Dynamics Program and by Taiwan's National Science Council and involving investigators at SUNY/Binghamton, UTIG, USC, Cornell, and Wisconsin, this project has acquired more than twice as much data as originally proposed due to synergistic contributions by Taiwan scientists and Taiwanese government science funding. From FY2006-2009, deployments of seismic instruments on land (IRIS) and at ocean-bottom (OBSIP) maximized the recording of local events and teleseisms, as well as artificial sources specially set off for TAIGER, in order to obtain high resolution 3-D images. To map the areas around Taiwan the PIs were able to use the NSF-supported research ship, the R/V Langseth, to create seismic waves that were recorded by a 6-km long streamer and also ocean-bottom and land recorders. These seismic and magnetotelluric profiles as well as petrologic lab data are currently being analyzed. TAIGER project data combined with geodynamics methods will be used to test a set of existing tectonic models that range from a thin skinned model, in which subduction of continental Eurasian mantle and lower crust is separated from a deforming crustal wedge by a plate boundary decollement, from a thick skinned model, where deformation of crust and mantle occurs within a vertically contiguous system, with progressive thickening of continental mantle beneath the core of the mountain belt.The current project (TAIGER?s TALE), will expand on thier initial studies to carry out in-depth and advanced studies using the extensive TAIGER data volumes (no new data will be acquired). This work will lead to significant advances in understanding deformational processes associated with the evolution of Taiwan due to plate collision. Studies will focus primarily on seismological analyses to obtain physical properties and rheological indicators as well as the integrative ties with geodynamical modeling efforts. The over-arching strategy is to take advantage of the unique aspects of the acquired data sets, the tectonic environment, and the diverse and complementary participating/collaborating personnel. They will perform their analyses of various data sets in such a way that higher frequency/higher resolution results are nested in the context of broader scale results. They will make extensive use of ?crossover? seismological data sets recorded during TAIGER (active sources collected by passive-source arrays, and earthquakes collected in active-source arrays). Also, analysis/interpretation of these data will be closely tied to geodynamic modeling.

TAIGER（台湾综合地球动力学研究）项目是一项联合美国台湾计划，旨在基于广泛的观察，旨在对台湾的复杂碰撞过程和构造发展进行建模。 该项目由NSF Continental Dynamics计划和台湾国家科学委员会资助，并参与了SUNY/BINGHAMTON，UTIG，UTIG，USC，CORNELL和WISCONSIN的调查人员，该项目的数据获得了台湾科学家和台湾政府科学资助的最初提出的两倍以上的数据。 从2009财年开始，在陆地上的地震仪器（IRIS）和海洋底部部署（Opean）（oppip）最大程度地记录了当地事件和远程主义的记录，以及专门为Taiger提供的人工资源，以获取高分辨率3-D图像。 为了绘制台湾周围的区域，PIS能够使用NSF支持的研究船R/V Langseth创建了地震波，这些地震波由6公里长的彩带记录，还记录了海洋底部和陆地录音机。 目前正在分析这些地震和磁铁概况以及岩石学实验室数据。 TAIGER project data combined with geodynamics methods will be used to test a set of existing tectonic models that range from a thin skinned model, in which subduction of continental Eurasian mantle and lower crust is separated from a deforming crustal wedge by a plate boundary decollement, from a thick skinned model, where deformation of crust and mantle occurs within a vertically contiguous system, with progressive thickening of continental mantle beneath the山带的核心。当前的项目（Taiger的故事），将扩大您的初步研究，以使用广泛的Taiger数据量进行深入和高级研究（不会获取新数据）。这项工作将导致理解与台湾碰撞导致的变形过程的重大进展。研究将主要关注地震学分析，以获得物理性质和流变学指标，以及与地球动力学建模工作的综合联系。总体策略是利用获得的数据集，构造环境以及多样化和互补的参与/协作人员的独特方面。他们将对各种数据集进行分析，以使更高的频率/更高分辨率结果嵌套在更广泛的规模结果的背景下。他们会大量使用？跨界吗？在Taiger期间记录的地震数据集（被动源阵列收集的主动来源，以及在活动源阵列中收集的地震）。 同样，对这些数据的分析/解释将与地球动力学建模密切相关。