British Geological Survey (BGS) Sampling Survey 1971/WH/1: Irish Sea and Cardigan Bay (03/07/1971 to 17/12/1971)

This marine sampling and geophysical survey has been carried out by Institute of Geological Sciences now British Geological Survey (BGS) for BGS, the survey took place from to July to December 1971 in the Irish Sea and Cardigan Bay and on board the MV Whitethorn. The purpose was to collect data for IGS Continental Shelf Unit 1as part of the ongoing UK regional mapping programme plus other projects. Thirteen boreholes were drilled in the north Irish Sea, twelve in Cardigan Bay and two in Caernarvon Bay. Sea floor data were collected using echo sounder and transit sonar. Sample data were collected using borehole wireline drilling, vibrocorer, gravity corer (rock and sediment), dredge and shipek grab. These data are archived by BGS. No BGS survey report currently available, IGS 1971 annual report contains summary.

本次海洋采样及地球物理调查由英国地质调查局（British Geological Survey，简称BGS）下属的地质科学研究所（Institute of Geological Sciences）执行，旨在为BGS搜集数据。调查时间跨度为1971年7月至12月，在爱尔兰海、卡迪根湾以及MV Whitethorn号船上进行。调查目的在于收集IGS大陆架单元1的数据，作为英国区域测绘计划的组成部分，并支持其他项目。在爱尔兰海北部钻探了十三口井，在卡迪根湾钻探了十二口井，在卡恩罗万湾钻探了两口井。海底数据通过回声测深仪和横波测深仪收集。样本数据则通过井孔电缆钻探、振动岩芯钻、重力岩芯钻（岩石与沉积物）、挖泥船和抓斗进行采集。这些数据由BGS存档。目前尚未有BGS的调查报告，但IGS 1971年度报告中包含了对这些数据的概述。