Computer Code: |
SESKV |
Preferred Map Code: |
SEV |
Status Code: |
Full |
Age range: |
Holocene Epoch (QH)
— Holocene Epoch (QH) |
Lithological Description: |
Mainly comprises sand and gravel, forming river terraces, and silty, clayey sand forming floodplains, and concealing sand and gravel. Includes units of sand, silt and clay, which are typically reddish brown. |
Definition of Lower Boundary: |
A sharp, undulating, erosional contact, mainly on reddish brown, clayey, sandstone-rich diamictons of the Gretna Till Formation, or yellowish brown, greywacke-rich diamictons of the Langholm Till Formation. |
Definition of Upper Boundary: |
At the present ground surface or, locally, covered by peat. |
Thickness: |
To 15m |
Geographical Limits: |
The valley of the River Esk and its tributaries, Dumfries-shire. |
Parent Unit: |
Solway Catchments Subgroup (SYDR)
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Area |
The valley of the River Esk and its tributaries, Dumfrieshire. McMillan et al. 2004. |
Reference(s): |
McMillan, A A, Hamblin, R J O and Merritt, J W. 2005. An overview of the lithostratigraphical framework for the Quarternary and Neogene deposits of Great Britain (onshore). British Geological Survey Research Report RR/04/04. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
E011
E017
S010
S011
S006
|