British Geological Survey (BGS) Geophysical and Sampling Survey 1974/17: North Sea: Geochemistry (1/Oct/1974 to 19/Oct/1974)

This British Geological Survey (BGS) marine geophysical and sampling survey took place in October 1974 in the North Forties-South Viking area aboard the Royal Research Ship RRS John Murray. The purpose was to evaluate gamma spectrometry technique in an area where no solid outcrop would occur. This provided an opportunity to gather data in an area with no previous coverage. A total of 1290 km of data were collected in a grid of 13 survey tracks. Sea floor data were collected using a echo-sounder and a transit sonar. Subsurface data were gathered using a suite of seismic instruments (airgun, sparker, pinger). Analogue data were collected and paper records were generated. Sea-bed samples and cores were collected using shipek grab and gravity corer. The data are archived by BGS. Technical details of the survey are contained in BGS Technical Report WB/74/15C.本数据集源自英国地质调查局（British Geological Survey, BGS）于1974年10月在北福蒂斯-南维京海域开展的海洋地球物理与采样调查，由皇家研究船RRS约翰·默里号（RRS John Murray）执行。本次调查旨在评估伽马能谱技术（gamma spectrometry technique）在无基岩出露区域的应用效果，该区域此前无任何调查覆盖数据，此次调查为填补该区域数据空白提供了契机。本次调查共布设了由13条测线组成的网格测区，累计获取数据总长度为1290千米。海底数据通过回声测深仪（echo-sounder）与航行声纳（transit sonar）采集；地下地层数据则通过气枪（airgun）、电火花震源（sparker）与声脉冲发射器（pinger）组成的地震仪器套装采集。本次调查采集得到模拟数据，并生成纸质记录文档；同时采用Shipek采泥器（shipek grab）与重力柱状取样器（gravity corer）采集海底沉积物样品与岩心。所有数据均由英国地质调查局（BGS）归档保存，本次调查的技术细节详见BGS技术报告WB/74/15C。