Editing Carboniferous of the Wear Valley and Derwent Gorge, County Durham - an excursion
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[[File:YGS_NORTROCK_FIG_15_1.jpg|thumbnail|Figure 15.1 (a) Carboniferous succession, and inset geological map for mid Durham, showing sections described at localities 1-4. (b) Geology of Middlehope Burn, Westgate (Locality 1).]] | [[File:YGS_NORTROCK_FIG_15_1.jpg|thumbnail|Figure 15.1 (a) Carboniferous succession, and inset geological map for mid Durham, showing sections described at localities 1-4. (b) Geology of Middlehope Burn, Westgate (Locality 1).]] | ||
[[File:YGS_NORTROCK_FIG_15_2.jpg|thumbnail|Figure 15.2 Geological map of the River Wear Gorge, Durham City. Details of boreholes are given in Johnson and Richardson (1990).]] | [[File:YGS_NORTROCK_FIG_15_2.jpg|thumbnail|Figure 15.2 Geological map of the River Wear Gorge, Durham City. Details of boreholes are given in Johnson and Richardson (1990).]] | ||
+ | == 15 Carboniferous of the Wear Valley and Derwent Gorge, County Durham == | ||
− | + | By Tony Johnson University of Durham. | |
− | By | ||
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== Purpose == | == Purpose == | ||
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{{YGSLogistics}} | {{YGSLogistics}} | ||
− | Localities 1 (Westgate), 2 (Frosterley) and 4 (Durham City) can be reached by public transport, but Locality 3 (Derwent Gorge) is best visited by car. Parking places are available at all localities. With transport, Localities 1, 2 and 3 can be visited in one day; Locality 4 will require an extra half day. Walking distance depends on the routes taken, but is not more than 4.5 | + | Localities 1 (Westgate), 2 (Frosterley) and 4 (Durham City) can be reached by public transport, but Locality 3 (Derwent Gorge) is best visited by car. Parking places are available at all localities. With transport, Localities 1, 2 and 3 can be visited in one day; Locality 4 will require an extra half day. Walking distance depends on the routes taken, but is not more than 4.5 km at Locality 1, 2 km at Locality 2, 4.5 km at Locality 3 and 1.5 km at Locality 4. |
− | Prior permission for access to Harehope Quarry (Locality 2) should be obtained from Tilcon Ltd, Chester-le-Street, and for access to the Derwent Gorge (Locality 3A) from English Nature. | + | Prior permission for access to Harehope Quarry (Locality 2) should be obtained from Mr R. J. Huddleston, Tilcon Ltd, P.O. Box 5, Fell Bank, Birtley, Chester-le-Street, Durham, DH3 2ST, and for access to the Derwent Gorge (Locality 3A) from English Nature (Tel: 01661 845500). |
== Maps == | == Maps == | ||
− | O.S. 1:50 | + | O.S. 1:50 000 Sheets 87 Hexham & Haltwistle, 88 Tyneside & Durham, 92 Barnard Castle; B.G.S. 1:50 000 Sheets 20 Newcastle upon Tyne, 25 Alston, 26 Wolsingham; B.G.S. 1:63 360 Sheet 27 Durham. |
== Geological background == | == Geological background == |