Editing Craven Fault Zone — Malham to Settle - an excursion

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=== Locality 13, Stockdale Lane corner [SD 848 638] ===
 
=== Locality 13, Stockdale Lane corner [SD 848 638] ===
  
Proceed westward to Stockdale Lane, then to the footpath gate at the bend in the lane 500 m ahead. The viewpoint, immediately north of the MCF, gives a good perspective of the High Hill hanging wall block relative to the Malham Formation footwall escarpment that includes Attermire Scar. The High Hill fault block contains 'reef' limestone exposures on the southern scarp-face and Malham Formation with overlying Wensleydale Group on the main dip slope, with dips from 15° to 25° towards the MCF. The throw on the fault using the datum of the base of the Hawes Limestone is calculated to be of the order of 170 m, much less than at Stockdale, but analogous to that at Wedber Brow, Malham. The High Hill block is truncated on its eastern margin by a fault, with Bowland Shales forming the low, poorly drained ground on the downside. The trace of this fault is not, however, shown on the B.G.S. map because the Bowland Shales overlap the fault plane (i.e. the fault is pre-Bowland Shales). This relationship clearly demonstrates the separation into blocks of the hanging wall geology by the subsidiary faults south of the MCF and also demonstrates the variation of throw of these isolated fault blocks relative to the main fault. The small roadside exposures near this viewpoint are dark grey grainstones of the Kilnsey Limestone. These are the oldest Dinantian rocks observed on this excursion; they crop out along the base of the slope (Little Banks), but are truncated by a fault east of Attermire Scar.
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Proceed westward to Stockdale Lane, then to the footpath gate at the bend in the lane 500 m ahead. The viewpoint, immediately north of the MCF, gives a good perspective of the High Hill hanging wall block relative to the Malham Formation footwall escarpment that includes Attermire Scar. The High Hill fault block contains 'reef' limestone exposures on the southern scarp-face and Malham Formation with overlying Wensleydale Group on the main dip slope, with dips from 15° to 25° towards the MCF. The throw on the fault using the datum of the base of the Hawes Limestone is calculated to be of the order of 170 m, much less than at Stockdale, but analogous to that at Wedber Brow, Malham. The High Hill block is truncated on its eastern margin by a fault, with Bowland Shales forming the low, poorly drained ground on the downside. The trace of this fault is not, however, shown on the B.G.S. map because the Bowland Shales overlap the fault plane (i.e. the fault is pre-Bowland Shales). This relationship clearly demonstrates the separation into blocks of the hanging wall geology by the subsidiary faults south of the MCF and also demonstrates the variation of throw of these isolated fault blocks relative to the main fault. The small roadside exposures near this viewpoint are dark grey grainstones of the Kilnsey Limestone. These are the oldest Dinantian rocks observed on this excursion; they crop out along the base of the slope (Little Banks), but are truncated by a fault east of Attermire Scar.
  
 
=== Locality 14, Attermire Scar–Warrendale Knotts viewpoint [SD 840 641] ===
 
=== Locality 14, Attermire Scar–Warrendale Knotts viewpoint [SD 840 641] ===

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