The BGS Lexicon of Named Rock Units — Result Details

Eriswell Member

Computer Code: ERIS Preferred Map Code: notEntered
Status Code: Full
Age range: Quaternary Period (Q) — Quaternary Period (Q)
Lithological Description: Gravelly sand
Definition of Lower Boundary: Unconformably overlies 'Middle Chalk'
Definition of Upper Boundary: At surface
Thickness: Up to 1.6m
Geographical Limits: Locally within about 1.5km of Eriswell,Suffolk
Parent Unit: Lark Valley Formation (LKVY)
Previous Name(s): 5th Terrace Of River Lark (Clayton 1983) (-891)
Alternative Name(s): 5th Terrace Of River Lark
Type Area  Adjacent to the Brandon Road about 0.5km NE of Eriswell,Suffolk Clayton, 1983 
Clayton, A R. 1983. The sand and gravel resources of the country between Maidenhall and Barrow, Suffolk: description of 1:25000 Sheets TL76, TL77 and part of TL87. Mineral Assessment Report, 123, Institute of Geological Sciences, London. 
Bowen, D Q. 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No. 23. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable