|Format||GIS grid data. (ESRI, MapInfo, others available by request)|
|Price||15p per km2. Subject to number of users, licence fee and data preparation fee.
Superficial deposits are the youngest of the geological formations (less than two million years old). They are largely unconsolidated and cover much of the bedrock of Britain. They generally include sediments deposited during the Pleistocene (Quaternary) glacial episodes, subsequent Holocene rivers and coastal systems; superficial deposits also include modern man made deposits such as mining spoil and road embankments.
The BGS Geology: superficial deposits thickness models show the depth of the bedrock surface and this information is critical in a number of areas of work. For example, in civil engineering, the evaluation of groundwater resources and possible water pollution, and in the prediction of surface hazards such as landslides and the collapse of underlying rocks.
The model has been created using digital mathematical interpolation techniques. It is produced by analysing information from approximately 600 000 borehole logs held in the BGS archives and also uses the extent of superficial deposits from the 1:50 000 scale digital geological map of Britain: BGS Geology 50k.
Contact Digital Data for more information.