THE DIGITAL APPROACH TO UNDERSTANDING THE QUATERNARY EVOLUTION OF THE VALE OF YORK, UK
The increased geological understanding of the Quaternary history of the Vale of York has been built up from numerous datasets. It has been aided by interpretation of digital elevation models (DEMs), allied with air photograph interpretation and a detailed 1:10 000 scale field survey. The survey involved extensive hand augering, percussion drilling and the examination of many thousands of boreholes held by the British Geological Survey. These were used to generate a 3D fence diagram and calculate a block model for the
By combining 3D data with detailed geological mapping and by utilising DEM interpretations it has been concluded that the last glacial maximum (LGM) limit of the Devensian ice was at the Escrick Moraine. No evidence of glacial till deposits has been found in the proglacial lake deposits to the south. This integrated survey has given new insight into the glacial and pro-glacial processes that affected this area during the Devensian glaciation in the Vale of York and can be used as a model for other quaternary studies.