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Geological Sites | Leeds | Bradford | Calderdale | Kirklees | Wakefield
SITE DESCRIPTION: The nature reserve is largely a large abandoned quarry in the Wetherby Formation of the Permian Cadeby Formation (Lower Magnesian Limestone). Although heavily overgrown, several faces (up to 5m high) are visible. They display well bedded and jointed horizontal, pale limestone (dolostone). The beds show fine algal lamination, with solution cavities often lined with calcite or dolomite crystals. There is a small cave in one face. HISTORICAL ASSOCIATIONS: This is a quarry from which a large amount of stone has been extracted. It may have been used for lime for agricultural use or for building stone. It is clear from the Geological Memoir 1950 (details below) p71 that the quarry was disused then. EDUCATIONAL VALUE: The area is probably of most value for secondary, further and higher education use. The dolostone rock types indicate what Permian marine environments might have been like. When examined in context with Hetchell Crags, the unconformity reveals the changing geological history of the area. The dolostone area also shows contrasts in scenery, natural vegetation and land use with the underlying Carboniferous rocks. AESTHETIC CHARACTERISTICS: The flora of the dolostone and the management style of periodic clearing and burning of encroaching trees and undergrowth used in the wood are interesting. ACCESS AND SAFETY: There is good access from the car park on the lane
between Thorner and East Keswick. Keep to paths within the nature reserve
to minimise damage to protected flora. Faces can be overgrown in summer.
Rock faces appear stable |