The BGS Lexicon of Named Rock Units — Result Details

Kinlet Microgabbro Sill

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] 
Reference(s):
WHITEHEAD, T H, and POCOCK, R W. 1947. Dudley and Bridgnorth. Memoir of the Geological Survey of Great Britain, Sheet 167 (England and Wales).  
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E167