| Computer Code: |
KTSI |
Preferred Map Code: |
KS |
| Status Code: |
Full |
| Age range: |
Bolsovian Substage (CC)
— Bolsovian Substage (CC) |
| Lithological Description: |
Olivine basalt and microgabbro (dolerite), typically vesicular and spheroidally weathered. |
| Definition of Lower Boundary: |
Igneous intrusive boundary within Pennine Coal Measures Group, largely bedding parallel. Intruded at, or just above, the position of the Highley-Brooch Coal, with a boundary within dark grey unaltered mudstone at the type locality. |
| Definition of Upper Boundary: |
Igneous intrusive boundary within Pennine Coal Measures Group, largely bedding parallel. Intruded at, or just above, the position of the Highley-Brooch Coal. Upper part is typically finely vesicular and overlain by calcareous sandstone. |
| Thickness: |
At least 15 m thick at Raggits Quarry, Knowle Hill [SO 693 818] and 7 m thick in the Claverley borehole (SO89SW/4) [SO 8035 9133]. |
| Geographical Limits: |
Knowle Hill area west of Kinlet [SO 69 81] and in subsurface around Kinlet [SO 727 817] and Claverley [SO 803 913]. |
| Parent Unit: |
Clee Hill Microgabbro Sill-swarm (CLEE)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Partial Type Section |
Raggits Quarry, Knowle Hill, comprises at least 15 m of highly weathered and faulted vesicular basalt. The base of the sill is seen near the entrance of the quarry on the west side of Knowle Hill [SO 6927 8184]. Described by Whitehead and Pocock (1947). |
| Reference(s): |
| Whitehead, T H and Pocock, R W. 1947. Geology of the country around Dudley and Bridgnorth. Memoir of the British Geological Survey, Sheet 167. (England and Wales). |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E167
|
