Ocean bottom seismometer (OBS) 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

本次巡航是新西兰南岛中部地区美国-新西兰联合多阶段地壳尺度研究的一部分，该研究涵盖了新西兰南岛两侧海域。这项联合美新对汇聚板块边界大陆变形的调查被称为南岛地质剖面（SIGHT）项目。在西兰塔斯曼海（Tasman Sea）和太平洋（Pacific Ocean）两侧的南岛进行了多通道地震记录（MCS）和海底地震仪（OBS/OBH）数据的采集。在巡航结束之际，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采集了海底地震仪（OBS/OBH）和地震折射成像（SCS）数据。其中一个目标是利用海上和陆上地震技术，通过从两侧详细描绘板块边界，以增进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，以及新西兰研究部公共服务基金资助。