| Computer Code: |
HDY |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Pliocene Epoch (NP)
— Pliocene Epoch (NP) |
| Lithological Description: |
Silty, sandy, gravelly clay. |
| Definition of Lower Boundary: |
Rests unconformably on bedrock (Chalk), occupying cavities. |
| Definition of Upper Boundary: |
Ground surface. |
| Thickness: |
none recorded or not applicable
|
| Geographical Limits: |
Reigate and Dorking District. |
| Parent Unit: |
Clay-with-flints Formation (CWF)
|
| Previous Name(s): |
Headley Formation [Obsolete Name and Code: Use HDY]
(-4702)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Headley Heath. Dines and Edmunds, 1933. |
| Reference(s): |
| Dines, H G, and Edmunds, M A. 1933. The geology of the country around Reigate and Dorking. Memoir of the Geological Survey England and Wales, Sheet 286. |
| McMillan, A A, Hamblin, R J O, and Merritt, J W. 2011. A lithostratigraphical framework for onshore Quaternary and Neogene (Tertiary) superficial deposits of Great Britain and the Isle of Man. British Geological Survey Research Report, RR/10/03. 343pp. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E286
|
