| Computer Code: |
RS |
Preferred Map Code: |
notEntered |
| Status Code: |
Pending Upgrade |
| Age range: |
Cryogenian Period (AC)
— Cryogenian Period (AC) |
| Lithological Description: |
Quartz-feldspar-garnet-mica schists. |
| Definition of Lower Boundary: |
Unknown - base not seen. |
| Definition of Upper Boundary: |
Unconformably overlain by younger strata of various ages. |
| Thickness: |
Unknown. |
| Geographical Limits: |
The Welsh Borderlands, in Shropshire, and the Wrekin area. |
| Parent Unit: |
Not Applicable (-)
|
| Previous Name(s): |
Rushton Schist [Obsolete Code: Use RS]
(URN)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Small exposures in farmyards at western end of Rushton Village, Shropshire. Pocock et al., 1938. |
| Reference(s): |
| Pocock R W, Whitehead T H, Wedd C B and Robertson T. 1938. Shrewsbury District including the Hanwood Coalfield. Memoir of the Geological Survey of Great Britain, England and Wales. (London: H.M.S.O.). |
| Pharaoh T C and Gibbons W. 1994. Precambrian rocks in England and Wales south of the Menai Strait Fault System. 85-97 in Gibbons W and Harris A L (editors), A revised correlation of Precambrian rocks in the British Isles. Geological Society of London Special Report No.22. |
| Callaway, C. 1884. On a new metamorphic area in Shropshire. Geological Magazine, Vol.21, 362-366. |
| Thorpe, R S, 1974. Aspects of magmatism and plate tectonics in the Precambrian of England and Wales. Geological Journal, Vol.9, 115-136. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E152
|
