| Computer Code: |
GWNM |
Preferred Map Code: |
GwM |
| Status Code: |
Index Level |
| Age range: |
Ediacaran Period (AD)
— Ediacaran Period (AD) |
| Lithological Description: |
[Obsolete: use NGW] |
| Definition of Lower Boundary: |
none recorded or not applicable
|
| Definition of Upper Boundary: |
none recorded or not applicable
|
| Thickness: |
none recorded or not applicable
|
| Geographical Limits: |
none recorded or not applicable
|
| Parent Unit: |
none recorded or not applicable
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Gibbons, W and Harris, A L. 1994. A revised correlation of Precambrian rocks in the British Isles. Geological Society of London Special Report, No.22. |
| Horak, J M and Gibbons, W. 2000. Anglesey and the Lleyn Peninsula (Llyn). 145-179 in Carney, J (editor), Precambrian rocks of England and Wales. Geological Consrvation Review Series, 20. [Peterborough: Joint Nature Conservation Committee.] |
| Shackleton, R M. 1975. Precambrian rocks of Wales. 76-83 in A correlation of Precambrian rocks in the British Isles. Harris, A L, and others (editors). Geological Society of London Special Report No. 6. |
| Gibbons, W and Ball, M J. 1991. Discussion on Monian Supergroup srtatigraphy in north-west Wales. Journal of the Geological Society, London, Vol. 148, 5-8. |
| Gibbons W and McCarroll D. 1993. Geology of the country around Aberdaron, including Bardsey Island. Memoir of the British Geological Survey, Sheet 133 (England and Wales). (London: H.M.S.O.). 88pp. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E133
E094
E134
|
