Editing Jurassic, Tertiary and Quaternary around Great Ayton and Roseberry Topping, Cleveland Hills - an excursion

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At the top of the hill are the remains of the winding house and incline for the mineral line from the Roseberry Ironstone Mines. Continue due east towards Airy Holme Farm (Airy = Norse/Irish for 'shieling', i.e. summer pasture residence) where a southeastward-sloping glacial drainage channel formed during the melting of the last ice sheet. Just before the first house, turn north-northwest up the marked right of way along the field boundary towards Roseberry Topping. Note the prominent bench feature between Roseberry Topping and Cliff Ridge Wood, formed by the sandstones of Middle Lias Staithes Formation [NZ 574 121]. Under favourable conditions the continuation of the mineral line may be seen diagonally cutting the field to your left, crossing the path at [NZ 576 119] and continuing to the east in a shallow cutting. Near here, erratic boulders, hand cleared from the fields, may be seen in heaps at the field boundaries. They include the distinctive Shap Granite from Cumbria, indicating ice flow from that region, across the Stainmore gap of the Pennines, to the lower Tees valley and Cleveland. Ultimately the ice moved southwards and across the eastern side of the Cleveland Hills and North York Moors.
 
At the top of the hill are the remains of the winding house and incline for the mineral line from the Roseberry Ironstone Mines. Continue due east towards Airy Holme Farm (Airy = Norse/Irish for 'shieling', i.e. summer pasture residence) where a southeastward-sloping glacial drainage channel formed during the melting of the last ice sheet. Just before the first house, turn north-northwest up the marked right of way along the field boundary towards Roseberry Topping. Note the prominent bench feature between Roseberry Topping and Cliff Ridge Wood, formed by the sandstones of Middle Lias Staithes Formation [NZ 574 121]. Under favourable conditions the continuation of the mineral line may be seen diagonally cutting the field to your left, crossing the path at [NZ 576 119] and continuing to the east in a shallow cutting. Near here, erratic boulders, hand cleared from the fields, may be seen in heaps at the field boundaries. They include the distinctive Shap Granite from Cumbria, indicating ice flow from that region, across the Stainmore gap of the Pennines, to the lower Tees valley and Cleveland. Ultimately the ice moved southwards and across the eastern side of the Cleveland Hills and North York Moors.
  
Continuing northeast towards Roseberry Topping, the path (at about 230 m OD) starts to skirt the eastern edge of the landslip and has been in part stepped using Middle Jurassic flaggy sandstones, some of which have small tridactyl theropod dinosaur prints on the top surfaces. Note the large and jumbled blocks of sandstone on the disturbed ground to the west. To the southeast are areas of vegetated abandoned quarries and isolated pits in the field nearby, where sedimentary ironstones of the Cleveland Ironstone Formation (Middle Lias) have been extracted. The steep path towards the summit of Roseberry Topping crosses the horizon of the Mulgrave Shale Member (Whitby Mudstone Formation, Upper Lias), marked by small bell pits for jet in the heather to the east of the path. Occasionally small pieces of jet may be found in this vicinity.
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Continuing northeast towards Roseberry Topping, the path (at about 230 m OD) starts to skirt the eastern edge of the landslip and has been in part stepped using Middle Jurassic flaggy sandstones, some of which have small tridactyl theropod dinosaur prints on the top surfaces. Note the large and jumbled blocks of sandstone on the disturbed ground to the west. To the southeast are areas of vegetated abandoned quarries and isolated pits in the field nearby, where sedimentary ironstones of the Cleveland Ironstone Formation (Middle Lias) have been extracted. The steep path towards the summit of Roseberry Topping crosses the horizon of the Mulgrave Shale Member (Whitby Mudstone Formation, Upper Lias), marked by small bell pits for jet in the heather to the east of the path. Occasionally small pieces of jet may be found in this vicinity.
  
At the head of the landslip the fine cliff formed of '''trough cross-bedded''' sandstone (Saltwick Formation; Middle Jurassic) may be examined by traversing westwards from the path. These massive beds, which include slump structures, intraformational '''conglomerates''' and ironstone '''concretions''', are underlain in places by Middle Jurassic Roseberry Topping Plant Bed (channel fill deposits) containing the cycads ''Nilssonia, Ptilophyllum, Thinfeldia ''and ''Zamites, ''and stems of the horsetail ''Equisetites. ''These plant beds should not be damaged in any way.
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At the head of the landslip the fine cliff formed of trough cross-bedded sandstone (Saltwick Formation; Middle Jurassic) may be examined by traversing westwards from the path. These massive beds, which include slump structures, intraformational conglomerates and ironstone concretions, are underlain in places by Middle Jurassic Roseberry Topping Plant Bed (channel fill deposits) containing the cycads ''Nilssonia, Ptilophyllum, Thinfeldia ''and ''Zamites, ''and stems of the horsetail ''Equisetites. ''These plant beds should not be damaged in any way.
  
 
=== Locality 5, Roseberry Topping [NZ 579 126] ===
 
=== Locality 5, Roseberry Topping [NZ 579 126] ===

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