Lawrence, D. J. D. 1990. Limestone Landscapes — a geodiversity audit and action plan for the Durham Magnesian Limestone Plateau. British Geological Survey open report OR/09/007.
Bishop Middleham Quarry [NZ 3326 3222]
Disused Quarry
Owned by DWT
Accessible quarry faces in Ford Formation. Good links between biodiversity and geodiversity.
Proposed action Ensure adequate sections of faces are clear of vegetation to enable clear display of geology and improve access if necessary. Provide geological interpretation.
Existing designations CGS MAGical
Existing on site interpretation Biodiversity interest explained by signboard
Major geodiversity interest A NNW–SSE elongate quarry in the backreef/lagoonal facies of the Ford Formation, excavated roughly along the lines of a complex of minor faults. A good sequence of oolitic dolomites can be examined in the East face of the Quarry, however elsewhere the outcrop is rather weathered. A sequence of beds that can be more easily examined is found in the NW corner.
Biodiversity interest Limestone Grassland, Good butterfly site aided by warm microclimate
Other heritage links None.
Additional comment Section exposed is similar to Trimdon Grange Quarry. Active Quarry is working magnesian limestone on west side of road.
Date of photography 2003