Biggleswade district - Sheet Explanation for sheet E204
Price £9.00(no VAT)
Sheet explanations provide a brief description and interpretation of the geology of the relevant BGS 1:50 000 scale map sheet area. More detailed geological information for the same area is available via the Sheet Descriptions.
Sheet explanations are printed A5 booklets and are available either singly, or as a pack together with the relevant 1:50 000 scale map, where this map is available.
The Biggleswade district lies to the south-west of Cambridge. Tracts of lowland underlain by mudstones of the Oxford Clay and Gault Formations in the western half of the district are separated by attractive, partially wooded areas of higher land, which are underlain by the more erosion-resistant deposits of the Woburn Sands Formation. In the south-east, the land rises from the Gault onto the Chalk, which gives rise to a characteristic rolling landscape. Harder bands within the Chalk, such as the Totternhoe Stone, Melbourn Rock and Chalk Rock, form topographical features which can be traced across the countryside. A veneer of chalky till covers much of the lower land in the west, deposited by the Anglian glaciation around 400 000 years ago.
Author Moorlock, B.S.P.
Sheet(s) Covered E204
Year Published 2003