| Computer Code: |
MOHI |
Preferred Map Code: |
MH |
| Status Code: |
Full |
| Age range: |
Devensian Stage (QD)
— Devensian Stage (QD) |
| Lithological Description: |
Very poorly-sorted, matrix-rich gravel with boulders comprising angular to subrounded clasts mostly of greywacke sandstone and siltstone with a matrix of yellowish brown, clayey sand. Subordinate beds of both clast-and matrix-supported, stratified diamicton, and lenses of silty sand. |
| Definition of Lower Boundary: |
Generally conformable boundary with the underlying Langholm Till Formation; otherwise unconformable contact with bedrock. |
| Definition of Upper Boundary: |
Generally at the ground surface, locally a conformable boundary with overlying Flandrian deposits. |
| Thickness: |
20m |
| Geographical Limits: |
Southern Uplands of Scotland. |
| Parent Unit: |
Southern Uplands Glacigenic Subgroup (SUDR)
|
| Previous Name(s): |
Morainic drift [Obsolete Name and Code: Use MORD]
(DOD)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Road cutting section on the western side of the A7 [T], 1km south of Langholm, Dumfries-shire. Merritt et al., in preparation |
| Reference(s): |
| McMillan, A A, Merritt, J W, Auton, C A and Golledge, N R [In preparation]. The Quaternary geology of the Solway area. BGS Research Report. |
| Lumsden G I, Tulloch W, Howells M F and Davies A. 1967. The geology of the neighbourhood of Langholm. Memoir of the Geological Survey, Sheet 11 (Scotland). |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S011
|
