| Computer Code: |
HKYL |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Lochkovian Age (DO)
— Pragian Age (DP) |
| Lithological Description: |
Mature, massive, rubbly fossil soil carbonate (calcrete) up to over 5 m thick, with concretions up to 0.3 m across, lying 350 to 400 m above the base of the St Maughans Formation. |
| Definition of Lower Boundary: |
At base of limestone, or of lower of two limestones where the bed is split into two, where it overlies red mudstones of the St Maughans Formation. |
| Definition of Upper Boundary: |
At top of limestone or of higher of two limestones where the bed is split into two, where it is overlain by mudstones or sandstones of the St Maughans Formation. |
| Thickness: |
Locally over 5 m. |
| Geographical Limits: |
Several kilometres on the eastern limb of the Bredenbury Anticline, south-west and north-west of Bromyard, Herefordshire; also probably on western limb of fold at Crowels Ash [S0 622 525]. |
| Parent Unit: |
Freshwater West Formation (FWW)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Disused quarry near Hackley Farm, Herefordshire [SO 636 534]. Brandon, 1989. |
| Reference(s): |
| Brandon, A. 1989. Geology of the country between Hereford and Leominster. Memoir for 1:50 000 Geological Sheet 198. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E198
|
