| Computer Code: |
DLST |
Preferred Map Code: |
DlSt |
| Status Code: |
Index Level |
| Age range: |
Pendleian Substage (CE)
— Pendleian Substage (CE) |
| Lithological Description: |
[Obsolete: use LSC] Cyclical sequences of mostly upward-coarsening cycles of mudstone, siltstone, sandstone, with coal and ironstones, but dominantly sandstone. |
| Definition of Lower Boundary: |
Taken at the lithological change from dominantly sandstone-bearing cyclical sequences to the underlying mudstones of the Kilbirnie Mudstone Formation |
| Definition of Upper Boundary: |
Taken at the base of the Upper Limestone Formation, defined at the base of the Index Limestone or at the relevant plane of unconformity if the Index Limestone is not present |
| Thickness: |
c.145m, but variable |
| Geographical Limits: |
Presently used in north Ayrshire |
| Parent Unit: |
none recorded or not applicable
|
| Previous Name(s): |
Limestone Coal Group [Obsolete Name and Code: Use DLST, LSC, KLMD]
(-2759)
|
| Alternative Name(s): |
Dalry Sandstone Member
|
| Stratotypes: |
| Type Section |
Maid Water, upstream of the Maid Bridge |
| Reference Section |
Dalry Creamery Bore, NS24NE/54. |
| Reference(s): |
| Browne, M A E, Dean, M T, Hall, I H S, McAdam, A D, and Monro, S K. 1995. A review of the lithostratigraphy of the Carboniferous rocks of the Midland Valley of Scotland. BGS Technical Report WA/95/25R. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S022
|
