| 项目编号: | 1616847
|
| 项目名称: | Collaborative Research: Controls on Along-Strike Variations in Locked and Creeping Megathrust Behavior at the Hikurangi Convergent Margin |
| 作者: | David Okaya
|
| 承担单位: | University of Southern California
|
| 批准年: | 2016
|
| 开始日期: | 2016-08-01
|
| 结束日期: | 2020-07-31
|
| 资助金额: | 889027
|
| 资助来源: | US-NSF
|
| 项目类别: | Standard Grant
|
| 国家: | US
|
| 语种: | 英语
|
| 特色学科分类: | Geosciences - Earth Sciences
|
| 英文关键词: | behavior
; subductionmargin characteristic
; slip behavior
; multinational collaborative program
; hikurangi margin
|
| 英文摘要: | The physical processes dictating the spectrum of fault slip modes (spanning destructive earthquakes
to slow slip events and aseismic creep) and the links between these behaviors and long-term
morphotectonic evolution of subduction systems are not understood. There is a fundamental
need to address this important problem with an integrated, system-level approach combining
geodynamical modeling with high-quality geophysical and geological constraints on subduction
margin characteristics.
This project will conduct an interdisciplinary, multinational collaborative program involving the USA, New Zealand, Japan and the UK to evaluate system-level controls on processes that govern both slip behavior and long-term deformation at subduction zones. The focus is on the Hikurangi margin in New Zealand, where GPS data show a transition in slip behavior from predominantly stick-slip
in the south to aseismic creep in the northern North Island, and where a wide range of subduction-related
processes and characteristics vary along-strike. The aim is to rigorously investigate the feedbacks
between plate interface slip behavior, solid and fluid mass fluxes, and manifestations of plate boundary mechanics in the long-term geological record that likely reflect common driving processes linking forearc uplift, sediment transfer and underplating, plate boundary strength, and seismogenesis. The Principal Investigators will address this important problem through an integrated approach combining large-scale seismic imaging, paleoseismology, and geomorphology, focused through the lens of state-of-the-art numerical modelling. |
| 资源类型: | 项目
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/91544
|
| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
|
|
There are no files associated with this item.
|
| Recommended Citation: | |
David Okaya. Collaborative Research: Controls on Along-Strike Variations in Locked and Creeping Megathrust Behavior at the Hikurangi Convergent Margin. 2016-01-01.
|
|
|