User Guide : BGS Geology 50k v9

BGS Geology 50k (formerly known as DiGMapGB-50) is a detailed, national geological dataset produced by BGS and is provided at 1:50 000 scale. It is based on the BGS's highest-resolution survey mapping. BGS Geology 50k version 9 has an almost complete coverage (approximately 99% of bedrock and approximately 95% superficial-deposits coverage of Great Britain). The geological areas within the dataset are attributed with a name to identify their geological age (stratigraphy) or mode of emplacement (igneous characterisation), and their composition (rock type or lithology). This information is arranged in five themes (as available): bedrock geology; superficial deposits; mass movement deposits, artificial ground and linear features. The British Geological Survey (BGS) Geology datasets are digital geological maps of Great Britain based on the different series of published BGS paper maps and updated with information from field surveys conducted by BGS, as well as previously unpublished maps and additional interpretation. Geological maps are the foundation for many other types of earth science related maps and are of potential use to a wide range of customers. The information provided in this User Guide is intended to give an overview to using and understanding this BGS Geology 50k data product.