| Computer Code: |
GYTI |
Preferred Map Code: |
GY |
| Status Code: |
Full |
| Age range: |
Devensian Stage (QD)
— Devensian Stage (QD) |
| Lithological Description: |
Grey stony sandy clay diamicton with clasts of Lake District volcanoclistic rocks and Carboniferous Limestone. Contains rip-up clasts of underlying Gillcambon Till at Type Section. Elsewhere in Edenside the unit contains relatively more Permo-Triassic red sandstone and Carboniferous sandstones. |
| Definition of Lower Boundary: |
Planar or uneven unconformable boundary with red diamicton of the Gillcambon Till Formation below, or unconformable on bedrock. |
| Definition of Upper Boundary: |
At land surface or overlain unconformably by glaciofluvial/glaciolacustrine or Flandrian sediments. |
| Thickness: |
10m |
| Geographical Limits: |
The Vale of Eden and southern Solway Lowlands north of the "Scottish Readvance" limit. |
| Parent Unit: |
Central Cumbria Glacigenic Subgroup (CCGL)
|
| Previous Name(s): |
Main Late Devensian Till of the Vale of Eden [Obsolete Name and Code: Use GYTI]
(-1581)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
West Bank of Gillcambon Beckm 275, above the road bridge. Eastwood et al (1968). |
| Reference(s): |
| Eastwood, T, Hollingworth, S E, Rose, W C C, and Trotter, F M. 1968. Geology of the country around Cockermouth and Caldbeck. Memoir of the Geological Survey of Great Britain, England and Wales, Sheet 23. |
| Bowen, D Q. 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No. 23. |
| Trotter, F M and Hollingworth, S E, 1932. The glacial sequence in the North of England. Geological Magazine, Vol.69, 374-380. |
| Trotter, F M. 1929. The glaciation of the Eastern Edenside, the Alston Block, and the Carlisle Plain. Quarterly Journal of the Geological Society of London, Vol.85, 549-612. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
