CAREER: Crustal Cracking along Multi-Segment Portions of the Juan de Fuca Ridge and its Relation to Ridge Segmentation

职业：胡安德富卡海岭多段部分的地壳破裂及其与山脊分段的关系

• 批准号: 9521039
• 负责人: Dawn Wright
• 金额: $ 8万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-01 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9521039&HistoricalAwards=false
• 关键词: CAREER; Crustal; Cracking; along; Multi

9521039 Wright This project is supported under the NSF Faculty Early Career Development (CAREER) Program. It provides support over four years for a new Oregon State University faculty member, Dr. Dawn Wright, to develop new, interdisciplinary courses in the marine and geological sciences, to promote scientific careers to; undergraduate and high school students, and to carry out a two- pronged research program in different aspects of marine geophysics. The first part of the proposed research focusses on a study of the geophysical development of the Tonga forearc, a region formed in response to ocean crust subduction and characterized by uplift of volcanoes and deep ocean crustal material west of the Tonga trench in the western Pacific Ocean. This study will be carried out in collaboration with Dr. Sherman Bloomer, Chair of the Oregon State University Department of Geoscience. The second focus of Dr. Wright's research will be the investigation of crustal faulting and fissuring along the Juan de Fuca Ridge, a highly active ocean spreading center located offshore western North America from northern California to Canada. This part of the project will include the integration of several existing data sets of side-scan sonar and photographic data along the spreading axis to define the distribution and characteristic of cracks developed in response to the stresses involved in ocean crust formation. Understanding the distribution, length and shape of these cracks will improve our understanding of the mechanisms involved in sea floor spreading; study of the Juan de Fuca Ridge expands on Dr. Wright's study of the processes of crack formation on the East Pacific Rise, a faster-rate spreading center further south in the eastern Pacific. The Juan de Fuca Ridge region is a highly active area seismically, with numerous earthquake reported annually. Dr. Wright will be working on this project in collaboration with researcher at the Hatfield Marine Center in Newport, Oregon, and will integrate her study of crack distribution with the ongoing study of earthquakes on the Juan de Fuca carried out at Hatfield Center. The research program on Juan de Fuca Ridge tectonics will be integrated into new courses developed for graduate and undergraduate education, and will allow a hands-on introduction to research techniques to students at Oregon State University.

小行星9521039 该项目由NSF教师早期职业发展（CAREER）计划支持。它为新的俄勒冈州州立大学教员Dawn Wright博士提供了四年的支持，以开发海洋和地质科学的新的跨学科课程，促进本科生和高中生的科学事业，并在海洋生物物理学的不同方面开展双管齐下的研究计划。 拟议研究的第一部分侧重于研究汤加前弧的地球物理发展，这是一个因洋壳俯冲而形成的区域，其特点是西太平洋汤加海沟以西的火山和深海地壳物质隆起。 这项研究将与俄勒冈州州立大学地球科学系主任谢尔曼布卢默博士合作进行。赖特博士的研究的第二个重点将是沿着沿着胡安德富卡岭的地壳断层和裂缝的调查，胡安德富卡岭是一个高度活跃的海洋扩张中心，位于北美西部近海，从北方加州到加拿大。 项目的这一部分将包括综合现有的几组侧扫声纳数据和沿扩展轴沿着的摄影数据，以确定因洋壳形成所涉应力而形成的裂缝的分布和特征。 了解这些裂缝的分布、长度和形状将有助于我们更好地了解海底扩张的机制;对胡安·德富卡海岭的研究扩展了赖特博士对东太平洋海隆裂缝形成过程的研究，东太平洋海隆是东太平洋更南部的一个扩张速度更快的中心。 胡安德富卡海岭地区是一个地震高度活跃的地区，每年都有许多地震报告。 Wright博士将与位于俄勒冈州纽波特的哈特菲尔德海洋中心的研究人员合作开展该项目，并将她对裂缝分布的研究与正在进行的胡安·德富卡地震研究相结合。哈特菲尔德中心。 胡安德富卡岭构造的研究计划将被纳入为研究生和本科生教育开发的新课程，并将允许动手介绍研究技术给俄勒冈州州立大学的学生。