CAREER: An Integrated Geologic, Geodetic, and Paleoseismic Study of Plate Boundary Stress Evolution and Geoscience Education Utilizing the EarthScope Database

职业：利用 EarthScope 数据库对板块边界应力演化和地球科学教育进行综合地质、大地测量和古地震研究

• 批准号: 0847499
• 负责人: Bridget Smith-Konter
• 金额: $ 50.1万
• 依托单位: University of Texas at El Paso
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-06-01 至 2014-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0847499&HistoricalAwards=false
• 关键词: CAREER; Integrated; Geologic; Geodetic; Paleoseismic

The project is focused on studying the relationship between stress evolution of the Pacific-North American plate boundary and the occurrence of major earthquakes in this region using time-dependent fault deformation models constrained by geologic, geodetic, and paleoseismic data. EarthScope is leading a large-scale community effort to understand the nature of earthquake hazards along the Pacific-North American plate boundary through a growing archive seismic and geodetic instruments. These instruments are now prepared to capture critical details of pending major seismic events, however a 3D synoptic picture of stress evolution spanning the full earthquake cycle requires sophisticated computer models, combined with improved paleoseismic chronologies. To investigate earthquake cycle stress evolution of the plate boundary, this project synthesizes several EarthScope data products with semi-analytic crustal deformation modeling techniques. These efforts include: (1) inclusion of community-defined fault locations and geometries, (2) integration of EarthScope InSAR and Plate Boundary Observatory GPS data, (3) analysis of new paleoseismic faulting histories, and (4) exploration of new fault model capabilities. A significant component of this proposed work also aims to develop K-16 educational tools and opportunities for both students and teachers, and to provide pertinent and accessible earthquake information to the general public. This portion of the project emphasizes (1) integration of visualization technologies, EarthScope Internet resources, and Earth science teaching modules for a masters-level Computers in Earth Science course for pre- and in-service K-12 teachers, (2) development of an EarthScope Active Earth kiosk display, highlighting this project's research results, local and regional EarthScope science, and Earth science career stories, and (3) participation of local high school students in the Pathways to the Geosciences summer camp, an ongoing educational program hosted by the University of Texas at El Paso. The fundamental earthquake science and outreach initiatives being explored by this project have substantial societal relevance, as time-dependent earthquake stress simulations will soon be poised to help mitigate seismic hazards and to transform the public's conception and appreciation of large-scale, temporally evolving Earth processes.

该项目的重点是利用地质、大地测量和古地震数据约束的随时间断层变形模型研究太平洋-北美板块边界的应力演化与该地区大地震发生之间的关系。 EarthScope 正在领导一项大规模的社区努力，通过不断增加的档案地震和大地测量仪器来了解太平洋-北美板块边界沿线地震灾害的性质。 这些仪器现在已准备好捕获即将发生的重大地震事件的关键细节，但是跨越整个地震周期的应力演化的 3D 概要图需要复杂的计算机模型，并结合改进的古地震年代学。 为了研究板块边界的地震周期应力演化，该项目利用半解析地壳变形建模技术综合了多个 EarthScope 数据产品。 这些工作包括：(1) 纳入社区定义的断层位置和几何形状，(2) 整合 EarthScope InSAR 和板块边界观测站 GPS 数据，(3) 分析新的古地震断层历史，以及 (4) 探索新的断层模型功能。 这项拟议工作的一个重要组成部分还旨在为学生和教师开发 K-16 教育工具和机会，并向公众提供相关且易于获取的地震信息。 该项目的这一部分强调 (1) 整合可视化技术、EarthScope 互联网资源和地球科学教学模块，为在职和在职 K-12 教师开设地球科学硕士级计算机课程；(2) 开发 EarthScope Active Earth 信息亭显示屏，突出显示该项目的研究成果、当地和区域 EarthScope 科学以及地球科学职业故事；(3) 当地高中生参与“通向地球科学之路” 地球科学夏令营是德克萨斯大学埃尔帕索分校主办的一项持续教育项目。该项目正在探索的基础地震科学和推广计划具有重大的社会意义，因为随时间变化的地震应力模拟很快将有助于减轻地震灾害，并改变公众对大规模、随时间演变的地球过程的概念和认识。