Plate Boundary Geodynamics - The New Zealand Observatory: A Workshop Proposal

本规划研讨会的重点是板块边界的转换挤压，其目的是：1)研究为什么在板块边界的相邻部分，转换挤压导致板块边界变形(俯冲和转换断层)的不同样式；以及2)描述这两个区域之间过渡的性质。拟议的研究区域，新西兰的菲奥德兰-南阿尔卑斯山地区，似乎提供了一个对比跨压力行为的杰出例子，也是一个已经完成或正在进行大量相关研究(由NSF-EAR提供大量资金)的地区。然而，新西兰的大多数项目都集中在板块边界的局部部分，旨在测试适用于该部分的特定过程或构造模型。除了一篇著名的综述论文(Walcott-1998)外，基本上没有人试图将我们对板块边界段的理解联系在一起，形成一幅关于板块边界作为一个整体是如何工作的岩石圈尺度图。出于这些原因，私营部门将主办一次科学规划讲习班，重点讨论新西兰板块边界地球动力学问题。研讨会的“成果”将是新西兰南岛板块边界研究的科学计划。研讨会将汇集一组来自美国、新西兰和其他国家的研究人员，他们专注于新西兰板块边界系统的各个方面，以解决当前理解中的问题，并确定仍然存在的一阶问题，从而有助于推动下一代板块边界研究。科学计划可以帮助集中研究项目，在不同的实验之间建立联系，向不太熟悉新西兰系统的板块边界研究人员提供背景信息--但从他们对其他板块边界系统的研究中获得实质性的洞察力，并为新的综合多学科项目提供基础。该计划还将为研究资助机构、NSF和新西兰研究科学与技术基金会(NZ-FRST)提供规划服务。

0530977FurlongThis Planning Workshop is focused on a transpressional plate boundary with the goals of: 1) examining why transpression results in contrasting styles of plate-boundary deformation (subduction versus transform faulting) in adjacent segments of the plate boundary; and 2) delineating the nature of the transition between these two regions. The proposed study area, the Fiordland - Southern Alps region of New Zealand, appears to provide an outstanding example of contrasting transpressional behavior, as well as being a region where a large amount of related studies (with substantial NSF - EAR funding) have already been completed or are underway. However, most of the projects in NZ have focused on local segments of the plate boundary, aiming at testing specific processes or tectonic models applicable to that segment. With the exception of one well known review paper (Walcott - 1998) there are essentially no attempts to link together our understanding of the plate boundary segments into a lithospheric scale picture of how the plate boundary as a whole works. For these reasons, the PIs will host a Science Planning Workshop focused on the plate boundary geodynamics of New Zealand. The "output" of the workshop will be a Science Plan for plate boundary research in South Island, New Zealand. The Workshop will bring together a group of researchers from the U.S., NZ, and other countries, who have focused on various aspects of the NZ plate boundary system to both hash out issues in the current understanding and identify the first order questions that remain and thus could help drive the next generation of plate boundary research. The Science Plan could help focus research projects, make the links among disparate experiments, provide background information to plate boundary researchers less familiar with the NZ system - but with substantial insight from their research on other plate boundary systems, and provide the basis for new integrative multi-disciplinary projects. The Plan will also serve the research funding agencies , NSF and the NZ-FRST (Foundation for Research Science and Technology) in their planning.