The BGS Lexicon of Named Rock Units — Result Details
Raised tidal flat deposits of Holocene age, 1
| Computer Code: | RTFF1 | Preferred Map Code: | symb |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Holocene Epoch (QH) — Holocene Epoch (QH) | ||
| Lithological Description: | Pale yellowish brown sandy clayey silt (loam) or grey sandy clay, locally with lenses of gravel, peat and disseminated organic material. | ||
| Definition of Lower Boundary: | Sharp unconformable, generally planar boundary with older superficial deposits, commonly till. Locally, rests unconformably on clast-supported gravel of raised beaches. | ||
| Definition of Upper Boundary: | Ground surface or gradational undulating boundary with younger superficial deposits such as peat and blown sand. Locally,a sharp unconformable contact with clast-supported gravel of raised beaches. | ||
| Thickness: | <10m | ||
| Geographical Limits: | Cumbria. | ||
| Parent Unit: | Raised tidal flat deposits (RTFD) | ||
| Previous Name(s): | Raised tidal flat deposits of Flandrian age, 1 [Obsolete Name and Code: Use RTFF1]
(-5254)
First terrace of warp [Obsolete Name and Code] (-1798) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | Southern shores of the Solway Firth between Silloth and Rockcliffe, Cumbria. Dixon et al., 1926. | ||
| Reference(s): | |||
| Dixon, E E L, Maden J, Trotter, F M, Hollingworth, M A and Tonks, L H. 1926. The geology of the Carlisle, Longtown and Silloth District. Memoir of the Geological Survey of England and Wales. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E017 | |||