Editing Carboniferous rocks of the Roman Wall and Haltwhistle Burn - an excursion

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[[File:YGS_NORTROCK_FIG_11_3.jpg|thumbnail|Figure 11.3 Geological map of Haltwhistle Burn.]]
 
[[File:YGS_NORTROCK_FIG_11_3.jpg|thumbnail|Figure 11.3 Geological map of Haltwhistle Burn.]]
  
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== 11 Carboniferous rocks of the Roman Wall and Haltwhistle Burn ==
  
By '''Mick Jones''' University of Newcastle upon Tyne
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By Mick Jones University of Newcastle upon Tyne
 
 
  
 
== Purpose ==
 
== Purpose ==
  
The area is outstanding by virtue of three interrelated features: the outcrop of the Whin '''Sill''', the associated geomorphology, and the siting of Hadrian's Wall on its outcrop. The excursion will cover all three elements together with the stratigraphy of the local succession which spans the Dinantian/Namurian boundary.
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The area is outstanding by virtue of three interrelated features: the outcrop of the Whin Sill, the associated geomorphology, and the siting of Hadrian's Wall on its outcrop. The excursion will cover all three elements together with the stratigraphy of the local succession which spans the Dinantian/Namurian boundary.
  
 
== Logistics ==  
 
== Logistics ==  
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{{YGSLogistics}}
 
{{YGSLogistics}}
  
The excursion is in three parts: the dip and scarp topography along the B63I8 (Military Road) from Sewing Shields to Cawfields ([[:File:YGS_NORTROCK_FIG_11_1.jpg|Figure 11.1]], Localities 1, 2; less than 1 hr). The geology and archaeology of Cawfields Quarry area (Locality 3; 1 hr). An easy 3 km walk along an old railway track from Cawfields, down Haltwhistle Burn to Haltwhistle and the A69 ([[:File:YGS_NORTROCK_FIG_11_3.jpg|Figure 11.3]], Localities 4–7; 2 hrs). For groups, the return walk from Locality 7 could be avoided if a car could be parked at either end. Parking, refreshments and toilet facilities are widely available in the area.
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The excursion is in three parts: the dip and scarp topography along the B63I8 (Military Road) from Sewing Shields to Cawfields ([[:File:YGS_NORTROCK_FIG_11_1.jpg|Figure 11.1]], Localities 1, 2; less than 1 hr). The geology and archaeology of Cawfields Quarry area (Locality 3; 1 hr). An easy 3 km walk along an old railway track from Cawfields, down Haltwhistle Burn to Haltwhistle and the A69 ([[:File:YGS_NORTROCK_FIG_11_3.jpg|Figure 11.3]], Localities 4–7; 2 hrs). For groups, the return walk from Locality 7 could be avoided if a car could be parked at either end. Parking, refreshments and toilet facilities are widely available in the area.
  
 
== Maps ==
 
== Maps ==
  
O.S. 1:50 000/1:25 000 Hadrian's Wall; 1:50 000 Sheets 86 Haltwhistle, Bewcastle & Alston, 87 Hexham & Haltwhistle; B.G.S. 1:50 000 Sheets 13 Bellingham, 18 Brampton (both solid and drift editions), 19 Hexham.
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O.S. 1:50 000/1:25 000 Hadrian's Wall; 1:50 000 Sheets 86 Haltwhistle, Bewcastle & Alston, 87 Hexham & Haltwhistle; B.G.S. 1:50 000 Sheets 13 Bellingham, 18 Brampton (both solid and drift editions), 19 Hexham.
  
 
== Geological background ==
 
== Geological background ==

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