Some features of the lower carboniferous reef limestones of Clitheroe, Lancashire
By: Parkinson, Donald
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Material type: 
ArticleDescription: 337-350p.Subject(s): Features - Lower carboniferous reef limestones - Clitheroe - Lancashire - England | Origin - Reef limestones - Lancashire - England | Historical geology - Great Britain
In:
Geological magazine : Vol. 87 Iss. 1-6 Year. 1950Summary: Abstract
The Clitheroe Limestone of Coplow, Salt Hill, and Bellman quarries is redescribed, particularly from the point of view of the origin and structure of the reef knolls and their relation to the surrounding deposits. Coplow knoll is considered to be the exposed part of a lenticular mass of upper C1 reef limestone which originally sloped steeply east. An earth movement within the C2 zone is marked by limestone breccias and a boulder bed, but there seems no evidence of pronounced erosion. A later uplift preceded the deposition of the Worston Shales. Slickensiding in the reef limestone is briefly discussed and possible effects of compaction of the sediments are considered. Three growth stages in reef formation are postulated.
| Item type | Current location | Collection | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|---|
Article
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Library and Information Centre Periodical Section | Bound Journal Collection | Not for loan | 002560_68 | ||
Serials/Scientific Journal
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Library and Information Centre Periodical Section | Bound Journal Collection | 550 GEO (Browse shelf) | Available | 002560 |
Abstract
The Clitheroe Limestone of Coplow, Salt Hill, and Bellman quarries is redescribed, particularly from the point of view of the origin and structure of the reef knolls and their relation to the surrounding deposits. Coplow knoll is considered to be the exposed part of a lenticular mass of upper C1 reef limestone which originally sloped steeply east. An earth movement within the C2 zone is marked by limestone breccias and a boulder bed, but there seems no evidence of pronounced erosion. A later uplift preceded the deposition of the Worston Shales. Slickensiding in the reef limestone is briefly discussed and possible effects of compaction of the sediments are considered. Three growth stages in reef formation are postulated.
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