British Geological Survey (BGS) Geophysical and Sampling Survey 1975/WH/21: Pockmark Study, North Sea (31/Jul/1975 to 15/Aug/1975)

This British Geological Survey (BGS) geophysical and sampling survey took place in July/August 1975 in North Sea on board the MV Whitethorn. The purpose was to gather data which could be used to map the regional geology of the area and investigate pockmarks. Seabed samples and cores were collected using Gravity corer and Vibrocorer. Sea floor data were collected using a echo-sounder. Subsurface data were gathered using a pinger. These data are archived by BGS. Technical details of the survey are contained in BGS Internal Report 75/19. BGS MGU report 98 & UC97. BGS Geotechnical report WN/EG/76/12.本次地球物理与采样调查由英国地质调查局（British Geological Survey, BGS）于1975年7月至8月间在北海开展，作业搭载于MV Whitethorn号科考船。本次调查旨在采集数据，用于绘制该区域的区域地质图并开展海底麻坑（pockmarks）的调查研究。研究团队采用重力取样器（Gravity corer）与振动岩心取样器（Vibrocorer）采集海底样品与岩心；通过回声测深仪（echo-sounder）获取海底地形数据，并采用声脉冲发射器（pinger）采集次表层地质数据。上述数据由英国地质调查局归档保存。本次调查的技术细节收录于《英国地质调查局内部报告75/19》、BGS MGU报告98、UC97以及《英国地质调查局岩土工程报告WN/EG/76/12》中。