| Computer Code: |
QHF |
Preferred Map Code: |
QHF |
| Status Code: |
Full |
| Age range: |
Cautleyan Stage (OU)
— Cautleyan Stage (OU) |
| Lithological Description: |
Green, purple-stained, bedded mudstones with thin subsidiary sandstone beds, conglomerate and mass-flow deposits with olistoliths. |
| Definition of Lower Boundary: |
Conformably overlies the Auldthorns Formation. The boundary is taken at the change from the alternating sandstone (dominant) and silty mudstone succession of the Auldthorns Formation to the fossiliferous green purple-stained bedded mudstones with thin subsidiary sandstones of the Quarrel Hill Formation. |
| Definition of Upper Boundary: |
Conformably overlain by the Lady Burn Formation. The poorly defined boundary is taken at the change from fossiliferous green, purple-stained bedded mudstones with thin subsidiary sandstones of the Quarrel Hill Formation into the more massive, nodular pale grey unbedded silty mudstones of the Lady Burn Formation. |
| Thickness: |
115m |
| Geographical Limits: |
Craighead Inlier, Girvan, southwest Scotland. |
| Parent Unit: |
Drummuck Subgroup (DKG)
|
| Previous Name(s): |
Quarrel Hill Flags [Obsolete Name and Code: Use QHF]
(-2990)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Craighead Inlier, Sheet SO14W. (Farden Burn). |
| Type Section |
Farden Burn, Craighead Inlier, Girvan. Harper, 1962. |
| Reference(s): |
| Harper, D A T, 1982. The stratigraphy of the Drummock Group (Ashgill), Girvan. Geological Journal, Vol.17, p.251-277.l. 17 251-277 |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S014
|
