Coal Authority Borehole Log Data.

This dataset is an archive of original data for the geophysical logging of boreholes drilled by the National Coal Board (NCB) and its successor, British Coal Corporation (BCC). Data coverage is UK wide and dates from the 1970's to the privatisation of the coal mining industry, in 1994. The dataset includes approximately 2000 field data recording tapes and processed data tapes. The processed data tapes are at various stages of processing and consist of edited data and computed (CSU) data (not available for all boreholes). The data are kept as archive copies. The data are owned by the Coal Authority (CA), as successor to the NCB and BCC, BGS being the custodian under an agreement with the Coal Authority. No full catalogue or index available yet.

本数据集为英国煤炭局（NCB）及其继承者——英国煤炭公司（BCC）所钻探的井孔地球物理测井的原始数据档案。数据覆盖范围遍及整个英国，时间跨度自20世纪70年代至1994年煤炭采矿行业私有化时期。该数据集包含约2000条实地数据记录磁带和经过处理的数据磁带。处理后的数据磁带处于不同的处理阶段，包括编辑数据和计算数据（CSU，并非所有井孔均提供）。数据以档案副本形式保存。数据归煤炭管理局（CA）所有，作为NCB和BCC的继承者，英国地质调查局（BGS）在煤炭管理局的协议下担任保管人。目前尚未提供完整的目录或索引。