Processed Multi-Channel Seismic Data off South Island, New Zealand, acquired during R/V Maurice Ewing survey EW9601 (1996)

This cruise was part of a joint US-New Zealand multiphase crustal-scale study of the Southern Alpine orogen across the central South Island of New Zealand, extending out to sea on either side of the island. This joint US-NZ investigation of continental deformation at convergent plate boundaries was known as the South Island GeopHysical Transection (SIGHT) project. MCS and OBS/OBH data were collected on the west (Tasman Sea) side and east (Pacific Ocean) side of South Island. At the end of the cruise OBS/OBH and SCS data were collected off Kakanui Point just south of Timaru as part of the Southern Cross Anisotropy Survey. One of the objectives was to improve understanding of continental deformation at convergent plate boundaries by using marine onshore/offshore seismic techniques to provide a detailed image of the plate boundary from both sides. Funded by NSF grant # EAR-9418530 and the Public Good Service Fund, Ministry of Research, Science

此次巡航属于美国-新西兰联合开展的多阶段地壳尺度研究项目，该研究项目旨在探讨新西兰南岛中部横跨的南阿尔卑斯造山带，并扩展至岛屿东西两侧海域。这一美国-新西兰对大陆变形进行的研究，在汇聚板块边界区域，被称为南岛地质横切（SIGHT）项目。在西兰岛的西侧（塔斯曼海）和东侧（太平洋）收集了多波束测深（MCS）和海洋底部地震观测（OBS/OBH）数据。巡航结束时，作为南方十字星各向异性调查的一部分，于蒂马鲁以南的卡卡努伊角附近收集了海底地震剖面（SCS）数据。其主要目标之一是通过应用海上与岸上地震技术，从两侧对板块边界进行详细成像，从而加深对汇聚板块边界大陆变形的理解。该项目由美国国家科学基金会（NSF）资助编号为EAR-9418530，以及新西兰研究、科学部公共福利服务基金资助。