Computer Code: |
CYC |
Preferred Map Code: |
CYC |
Status Code: |
Full |
Age range: |
Rhuddanian Age (SR)
— Rhuddanian Age (SR) |
Lithological Description: |
Flaggy sandstones with prominent calcareous lenses full of shells. |
Definition of Lower Boundary: |
Unconformable on Ordovician. |
Definition of Upper Boundary: |
Conformably overlain by Woodland Formation. |
Thickness: |
40m |
Geographical Limits: |
Girvan area, southwest Scotland. |
Parent Unit: |
Newlands Subgroup (NEWL)
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Section |
Craigskelly, coast c. 1km southwest of Girvan. Cocks, L R M and Toghill, P, 1973. |
Reference(s): |
Floyd, J D and Williams, M. 2003. A revised correlation of Silurian rocks in the Girvan district, SW Scotland. Transactions of the Royal Society of Edinburgh: Earth Sciences, Vol. 93 (for 2002), 383-92. |
Cocks, L R M and Toghill, P, 1973. The biostratigraphy of the Silurian rocks of the Girvan District, Scotland. Journal of the Geological Society of London, Vol. 129, 209-243. |
Lapworth, C, 1882. The Girvan Succession. Quarterly Journal of the Geological Society of London, Vol. 38, 537-666. |
Cameron, I B, Stone, P and Smellie, J, 1986. Geology of the Country around Girvan. Explanation of 1:50 000 sheet. British Geological Survey, Sheet 7, Scotland. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
S007
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