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<p><b>New page</b></p><div>==Langness Conglomerate Formation [http://www.bgs.ac.uk/lexicon/lexicon.cfm?pub=LNCO (LNCO)], Carboniferous, Isle of Man==<br />
Langness Conglomerate Formation is part of the [[Ravenstonedale Group]]<br />
=== Name ===<br />
The name is derived from Langness, south Isle of Man, and was given by Dickson et al. (1987)<ref name="Dickson">Dickson, J A D, Ford, T D, and Swift, A.1987.The strati-graphy of the Carboniferous rocks around Castletown, Isle of Man.''Proceedings of the Yorkshire Geological Society'', Vol. 46, 203–229</ref>.<br />
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=== Lithology ===<br />
The formation comprises reddish brown, generally poorly sorted, typically clast-supported conglomerate with subordinate interbedded sandstone. Sedimentary structures include crude stratification and rare cross-bedding. See Chadwick et al. (2001)<ref name="Chadwick01">Chadwick, R A, Jackson, D I, Barnes, R P, Kimbell, G S, Johnson, H, Chiverrell, R C, Thomas, G S P, Jones, N S, Riley, N J, Pickett, E A, Young, B, Holliday, D W, Ball, D F, Molyneux, S G, Long, D, Power, G M, and Roberts, D H.2001.The geology of the Isle of Man and its offshore area.''British Geological Survey Research Report'', RR/01/06</ref>.<br />
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=== Genetic interpretation ===<br />
The formation is an alluvial fan deposit, transported by debris flow and streamflow processes.<br />
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=== Stratotype ===<br />
A partial type section includes foreshore exposures along the Langness Peninsula (SC 2819 6604 to 2854 6661) where an estimated 30 m of coarse clastic sedimentary rocks are present (see Dickson et al., 1987, p. 205<ref name="Dickson"></ref>).<br />
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=== Lower and upper boundaries ===<br />
The formation is unconformable on the underlying, steeper-dipping, Ordovician Lonan Formation (see Chadwick et al., 2001<ref name="Chadwick01"></ref>).<br />
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The limestones of the Turkeyland Member, Derbyhaven Formation, Great Scar Limestone Group (Figure.8, Column.8) overlie the apparently partly reworked sandstone top to the Langness Conglomerate Formation.<br />
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=== Thickness ===<br />
The formation is about 30 m thick.<br />
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=== Distribution and regional correlation ===<br />
The formation occurs in the south Isle of Man.<br />
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=== Age ===<br />
Devonian to Courceyan (Chadwick et al., 2001, p. 59<ref name="Chadwick01"></ref>)<br />
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== References ==<br />
<references/><br />
[[Category:Carboniferous lithostratigraphical nomenclature]]</div>Geosource>Volunteer 01