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the only river in the district that flows over limestone for its entire length
I did read in a booklet 'The Natural History of Latkill Dale' (published by Derbyshire Dales National Nature Reserve?) that the reason the river is never dry in the lower reaches is beause it flows over basalt. I cant find the booklet but am sure that is the case. Anyone else out there have any information?
2A00:23C5:BC00:8A00:9D29:F62B:A167:41 (talk) 16:32, 17 March 2017 (UTC)[reply]
I recently went on a fieldtrip here, along with two leading experts in the fied, who pointed me in the direction of a 1993 paper by H. M. Pedley (accesible here at http://pygs.lyellcollection.org/content/49/3/197) which states that the river 'mostly' flows over limestone, which does imply that there are at least some small parts where it does NOT flow over limestone. Perhaps the artice should be changed? MeshBlair 17:19, 29 October 2017 (UTC)
I have a copy of 'Lathkill Dale Geology' a pamphlet published by English Nature. The rock downstream of the footbridge is impermeable basalt which is why water can always be seen flowing on the surface at that part of the river. I will update the article when I have read through the pamphlet and perhaps create a section on geology.2A00:23C4:D891:1100:F5C6:3896:C007:E5E2 (talk) 17:19, 2 December 2017 (UTC)[reply]