PIRE: ExTerra Field Institute and Research Endeavo

PIRE：ExTerra 现场研究所和 Endeavo 研究中心

• 批准号: 1545903
• 负责人: Matthew Kohn
• 金额: $ 402.29万
• 依托单位: Boise State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-06-01 至 2024-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1545903&HistoricalAwards=false
• 关键词: PIRE; ExTerra; Field; Institute; Research

Non-technical abstract OIA1545903 "PIRE: ExTerra Field Institute and Research Endeavor (E-FIRE)"Subduction is a fundamental Earth process in which two tectonic plates converge, forcing one plate deep into Earth's mantle. Subduction produces most of Earth's deadliest earthquakes and volcanic eruptions, for example around the Pacific Ocean rim's "Ring of Fire". ExTerra (Exhumed Terranes) is a broad US geosciences consortium that investigates rocks exhumed from fossil subduction zones - rocks whose evolution uniquely illuminates processes otherwise obscured beneath the surface of active subduction zones. ExTerra will partner with our sister European organization ZIP (Zooming In between Plates) using novel field institutes to promote collaborative research among US and European researchers focused on subduction zone processes. The E-FIRE project develops a new paradigm for collaborative geological research that focuses on collaborative field work to collect materials held communally, augmented by broad interactions through workshops and student exchanges. Each researcher contributes a different analytical expertise to a combined effort aimed at transforming our understanding of active subduction zone processes. International partnership is critical because European researchers actively investigating the geology of each field area will provide foundational field knowledge of the region and actively participate in analysis and interpretation with US researchers. The project will integrate students and post-doctoral scholars (Early-Stage Researchers, ESRs) into a developing international network of scientists, help train ESRs in research and education, and provide a model for future geoscience collaborations across disciplines. E-FIRE will also create a uniquely valuable sample archive that will be made accessible to the greater research community along with the data generated by this project.Technical abstract OIA1545903 "PIRE: ExTerra Field Institute and Research Endeavor (E-FIRE)"The purpose of E-FIRE is to trace the cycle of rocks and fluids through the subduction process, as recorded in Earth's premier example of a fossil subduction zone - the Western Alps, Europe. The processes by which rocks, melts, and aqueous fluids exchange and interact among different physical components of the subduction system control all aspects of subduction. These processes occur deep within subduction zones, and a full understanding of these deep processes is a challenge both for investigations using remote geophysical methods and for scientists investigating active volcanoes above subduction zones. Investigations of exhumed rocks from within the subduction zone provide a unique, direct source of information regarding these processes. Specific research questions that we will explore include: 1) How do elements cycle among crust, mantle and Earth's surface? 2) What are the depths, temperatures, and timescales of rock transformation and fluid release within subduction zones? and 3) What is the mechanical behavior of materials within subduction zones? The proposed projects will adopt a variety of approaches to address these questions, including mineralogical and petrological analysis; textural characterization; geochemical analysis of major elements, trace-elements (e.g. HFSE, REE, etc.), stable isotopes (e.g. δ37Cl, δ13C), and radiogenic isotopes (U-Pb and Sm-Nd); and thermodynamic modeling. E-FIRE will implement a series of Field Institutes and Workshops aimed at developing an international, interdisciplinary network of scientists focused on subduction zone processes. These activities, along with student exchanges among participating institutions, will train early stage researchers (ESRs: students and post-doctoral scholars) in research, communication, and collaborative practice, ultimately developing a career-long collaborative network. Samples and data collected during E-FIRE will be archived and made available to the greater research community.

非技术摘要 OIA1545903“PIRE：ExTerra Field Institute and Research Endeavor (E-FIRE)”俯冲是地球的一个基本过程，其中两个构造板块会聚，迫使一个板块深入地幔。地球上大多数最致命的地震和火山喷发都是由俯冲引起的，例如太平洋沿岸的“火环”周围的地震和火山喷发。 ExTerra（Exhumed Terranes）是一个广泛的美国地球科学联盟，致力于研究从化石俯冲带中挖掘出来的岩石，这些岩石的演化以独特的方式揭示了活跃俯冲带表面之下隐藏的过程。 ExTerra 将与我们的欧洲姊妹组织 ZIP（板块间放大）合作，利用新颖的现场研究所促进美国和欧洲研究人员之间专注于俯冲带过程的合作研究。 E-FIRE 项目为协作地质研究开发了一种新范式，重点是协作现场工作，收集共同持有的材料，并通过研讨会和学生交流进行广泛互动。每位研究人员都贡献了不同的分析专业知识，共同努力，旨在改变我们对活跃俯冲带过程的理解。国际合作至关重要，因为欧洲研究人员积极调查每个野外区域的地质情况将提供该地区的基础野外知识，并积极参与与美国研究人员的分析和解释。该项目将把学生和博士后学者（早期研究人员，ESR）纳入不断发展的国际科学家网络，帮助培训研究和教育领域的 ESR，并为未来跨学科的地球科学合作提供模型。 E-FIRE 还将创建一个具有独特价值的样本档案，该档案将与该项目生成的数据一起供更大的研究界访问。技术摘要 OIA1545903“PIRE：ExTerra Field Institute and Research Endeavor (E-FIRE)”的目的E-FIRE 的目的是追踪俯冲过程中岩石和流体的循环，正如地球上第一个化石俯冲带的例子 - 欧洲西阿尔卑斯山所记录的那样。俯冲系统的不同物理组成部分之间的岩石、熔体和含水流体交换和相互作用的过程控制着俯冲的各个方面。这些过程发生在俯冲带深处，充分了解这些深层过程对于使用远程地球物理方法进行调查和研究俯冲带上方活火山的科学家来说都是一个挑战。对俯冲带内挖出的岩石的调查提供了有关这些过程的独特、直接的信息来源。我们将探讨的具体研究问题包括：1）元素如何在地壳、地幔和地球表面之间循环？ 2）俯冲带内岩石转变和流体释放的深度、温度和时间尺度是多少？ 3）俯冲带内材料的力学行为是什么？拟议的项目将采用多种方法来解决这些问题，包括矿物学和岩石学分析；结构表征；主量元素、微量元素（如HFSE、REE等）、稳定同位素（如δ37Cl、δ13C）和放射性同位素（U-Pb和Sm-Nd）地球化学分析；和热力学建模。 E-FIRE 将举办一系列现场研究所和研讨会，旨在建立一个专注于俯冲带过程的国际跨学科科学家网络。这些活动以及参与机构之间的学生交流，将在研究、交流和协作实践方面培训早期研究人员（ESR：学生和博士后学者），最终建立一个职业生涯的协作网络。 E-FIRE 期间收集的样本和数据将被存档并提供给更大的研究界。