Seismic locations and sections database

The Seismic Locations and Sections database (LOCSEC) stores digitised seismic reflection survey location and line-interpretation data. Supplementary data stored includes map projection information and rock-unit seismic velocity data. The data are grouped by interpretation project area. Location data are input from digitised seismic shotpoint (SP) or common depth point (CDP) maps, or from direct input of digital navigation data. [See: Original Seismic Shotpoint Location Maps (ORIGSPMAPS) and Digital Seismic Shotpoint Location Maps (DIGSPMAPS) datasets]. Line-interpretation data are input from digitised pick-lines on manually interpreted printed seismic sections. [See: Copy Seismic Sections dataset (COPYSEISECS)]. In-house software is used for data management and display, to perform interpretation related tasks, e.g. depth-conversion, and to merge data into X, Y, Z form for input to 3D mapping and modelling packages such as EarthVision. Data in LOCSEC may also be related to the borehole interpretations held in the Stratigraphic Surfaces Database (SSD). Almost all data are within the UK Onshore area; although there are some UK near-shore and offshore (North Sea, Irish Sea) and foreign data. Most data were acquired for commercial hydrocarbon exploration and subsequently provided to BGS for use on specific projects. Some data were acquired by BGS and other public-sector bodies, e.g. BIRPS, for academic research.

LOCSEC 地震定位与剖面数据库储存了数字化地震反射测井定位及线路解释数据。所存储的补充数据包括地图投影信息及岩石单元地震速度数据。数据根据解释项目区域进行分组。定位数据来源于数字化地震发射点（SP）或公共深度点（CDP）地图，或直接输入的数字导航数据。[参见：原始地震发射点定位地图（ORIGSPMAPS）和数字化地震发射点定位地图（DIGSPMAPS）数据集]。线路解释数据来源于手动解释的打印地震剖面上的数字化拾取线。[参见：地震剖面复制数据集（COPYSEISECS）]。内部软件用于数据管理及展示，执行与解释相关的任务，例如深度转换，并将数据合并为X、Y、Z形式，以便输入到EarthVision等三维制图和建模软件包。LOCSEC 中的数据亦可能与保存在地层表面数据库（SSD）中的钻孔解释相关。几乎所有数据均位于英国陆上区域；尽管存在一些英国近岸和海上（北海、爱尔兰海）以及外国数据。大部分数据是为了商业烃类勘探而采集的，随后提供给英国地质调查局（BGS）用于特定项目。部分数据由英国地质调查局及其他公共部门机构，例如英国岩层研究计划（BIRPS），为学术研究而采集。