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Viewing swaag.org website implies consent to set cookies on your computer. Full details Swaledale and Arkengarthdale Archaeology Group
Registered Charitable Incorporated Organisation Number 1155775
SWAAG Honorary President:
Tim Laurie FSA

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 *****SWAAG_ID***** 632
 Date Entered 02/11/2012
 Updated on 02/11/2012
 Recorded by Tim Laurie
 Category Geological Record
 Record Type Northern Britain
 Site Access Public Access Land
 Record Date 01/11/2012
 Location White Force Waterfall
 Civil Parish Holwick
 Brit. National Grid 
 Altitude 480m
 Geology The Whin Cill intrusion and metamorphosed 'Sugar' limestone.
 Record Name White Force Waterfall, the Whin Cill and underlying metamorphosed 'Sugar' Limestone.
 Record Description White Force is significant as the scene of a visit, on pony with a local guide, by the great pionneering geologist Adam Sedgewick during or before 1827. Adam Sedgwick first to recognised the injected nature of the igneous Whin Cill and that the strata both below and above the Whin Cill had been metamorhosed by contact with the igneous dolerite. (Sedgewick,A.1827. On the association of trap rocks with the mountain limestone formation in High Teesdale, etc. Trans. Cumb. Phil.Soc., 2, 140-196.)
 Dimensions See photos
 Additional Notes During periods of low flow, the waterfall disappears into a fissure within the metamorphosed limestone to re-emerge at the base of the falls. During time of flod the Falls are considered to be extremely impressive, rivalling The High Force! To those who know me, burnt stones are not infrequently presented as evidence for the heating of water, however the fragments of Sugar Limestone shown on image No xx were heated by contact with the Dolerite Cill some 300M yrs ago, during the Late Carboniferous. For a detailed discussion on the extent and relative age of the Whin Cill, see Johnson G.A.L. and Dunham 1963. 'The Geology of Moor House- A National Nature Reserve in north east Westmorland.' HMSO.
 Image 1 ID 3564         Click image to enlarge
 Image 1 Description Cronkley Fell and The White Force in mid distance from Forest in Teesdale.
 Image 2 ID 3665         Click image to enlarge
 Image 2 Description The Whin Cill (Upper dark strata) and underlying metamorhosed (light coloured) limestone
 Image 3 ID 3566         Click image to enlarge
 Image 3 Description 
 Image 4 ID 3567         Click image to enlarge
 Image 4 Description 
 Image 5 ID 3568         Click image to enlarge
 Image 5 Description 
 Image 6 ID 3569         Click image to enlarge
 Image 6 Description 
 Image 7 ID 3570         Click image to enlarge
 Image 7 Description Water rolled cobbles of metamorphosed, fire cracked limestone. The Sugar Limestone.
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