REU: Late Neogene Faulting and Tectonic Evolution: A Studyof Forearc Plate Margin Settings in New Zealand and California

为了更好地了解新西兰北岛东部弧前地区裸露的地面部分的变形变化性质，将与新西兰科学家进行合作调查，并将这些发现与加利福尼亚类似构造环境的数据进行比较。新西兰的研究区域将是一个从霍克斯湾向西到鲁阿因山脉的样带。加州的研究地点将沿着门多西诺角东部和北部的圣安德烈亚斯断层带的断层。具体的调查技术包括对选定断层段的详细测绘和对断层相关裂缝的分析，以确定断层类型、应变比和主应变轴。结果将进一步了解在这种情况下弧前区域应变的空间分布。在新西兰这个人口中等的地区，测绘也可能发现更多的活动断层。这些发现可能会进一步深入了解与加州圣安德烈亚斯变形带向北迁移有关的变形。

A cooperative investigation will be undertaken with New Zealand scientists to better understand the changing nature of deformation across the exposed, subaerial portion of the forearc region of the eastern portion of the North Island of New Zealand and compare these findings with data from a similar tectonic setting in California. The New Zealand study area will be a transect from Hawkes Bay westward to the Ruahine Range. California study sites will be along faults of the San Andreas fault zone to the east and north of Cape Mendocino. Specific investigative techniques include detailed mapping of selected fault segments and analysis of fault-related fractures to determine fault style, strain ratios, and axes of principal strain. Results will further the understanding of the spatial distribution of strain across the forearc region in such settings. Mapping may also identify additional active faults in this moderately populated part of New Zealand. Findings will perhaps add further insight into deformation associated with northward migration of the San Andreas Transform Zone in California.