| Computer Code: |
KEY |
Preferred Map Code: |
Key |
| Status Code: |
Full |
| Age range: |
Neoproterozoic Era (AZ)
— Neoproterozoic Era (AZ) |
| Lithological Description: |
Lithic sandstone and tuffaceous siltstone, purple-green, with poorly sorted angular to subrounded clasts of tuff, agglomerate and acid to intermediate lava (Whittaker, 1980). |
| Definition of Lower Boundary: |
Not seen. |
| Definition of Upper Boundary: |
Unconformity beneath Permian Bridgnorth Sandstone. |
| Thickness: |
Proved thickness of 705.6m (2318 feet). |
| Geographical Limits: |
Not known; only proved in Kempsey Borehole; western limit is East Malvern Fault. |
| Parent Unit: |
Not Entered (?)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Kempsey No.1 Borehole, Kempsey, near Worcester, Hereford and Worcester (SO84NE/2), from 7562' to base of hole at 9880' (formation not bottomed). |
| Reference(s): |
| Barclay, W J, Ambrose K, Chadwick, R A, and Pharaoh, T C. 1997. Geology of the country around Worcester. Memoir of the British Geological Survey, Sheet 199 (England and Wales). |
| Whittaker, A, 1980. Kempsey No.1 Geological well completion report. Report of the Deep Geology Unit, Institute of Geological Sciences, No.80/1. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E199
|
