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The geology of Haltwhistle Burn, Northumberland

Saturday 4 July, 10am-4pm

The Haltwhistle Burn cuts down through a cyclic sedimentary succession of Carboniferous Namurian strata deposited in the Northumberland Basin, with fluvial to shallow marine sediments being superbly exposed in the sides of the very picturesque gorge. A changing series of sedimentary environments is encountered that reflect the balance between fluvial progradation and marine transgression, and characterise the lower part of the Upper Carboniferous sedimentary history of the Northumberland Basin. Some superb sedimentary features are displayed, and the whole section allows one to embark on palaeogeographic reconstruction of this part of Britain in Namurian times.

Meet at Cawfields Quarry car park on Hadrian’s Wall, turn north off B6318 Military Road at Milecastle Inn (grid ref NY713666 or postcode NE49 9PJ). Pay & Display requires £1 & £2 coins. Bring packed lunch.

Leader: Paul Williams