Laboratory Frictional Studies of Fault Gouge: A Test of Hypotheses for Controls on the Updip Limit of the Seismogenic Zone Along Subduction Thrusts

断层泥的室内摩擦研究：控制沿俯冲冲断层发震带上倾极限的假设检验

• 批准号: 0001871
• 负责人: Chris Marone
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-08-15 至 2001-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0001871&HistoricalAwards=false
• 关键词: Laboratory; Frictional; Studies; Fault; Gouge

The PI proposes to develop a structural model of the subduction thrust from the seaward edge of the subduction zone through the seismogenic zone with the geological conditions at the Nankai Subduction Zone as a constraint. The objective is to understand the progressive fabric development across the aseismic to seismic transition, to provide information that will help interpret geophysical images and guide experimental lab studies and assist in the interpreting of the drill hole data through the seismogenic zone. The PI will use ODP holes at the frontal part of the Nankai subduction zone and uplifted equivalent complexes on land.

PI建议以南海俯冲带的地质条件为约束条件，建立一个从俯冲带向海边缘穿过孕震区的俯冲逆冲构造模型。目的是了解从地震向地震过渡过程中的渐进式组构发展，提供有助于解释地球物理图像的信息，指导实验室研究，并协助解释通过孕震区的钻孔数据。PI将使用南海俯冲带前部的ODP孔和陆地上隆起的等效复合体。