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Further comment on correlation of Sandstones at Billinge Beacon

✍ Scribed by J. I. Chisholm

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 57 KB
Volume: 23
Category: Article
ISSN: 0072-1050
DOI: 10.1002/gj.3350230308

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✦ Synopsis

In a comment on the nomenclature of sandstones described by Fielding (1987) at Billinge Beacon, Broadhurst (1987) has suggested that the beds exposed in the quarry could be called Dyneley Knoll Flags on account of their flaggy facies. However, to do so would conflict with the Geological Survey classification, which names the sandstones primarily on the basis of their position in the sequence. In the Burnley Coalfield, where these beds are best developed, the Dyneley Knoll Flags lie above the horizon of the Pasture Coal, whereas the Crutchman Sandstone liesjust below it (Wright et al., 1927, p. 25). Around Billinge the borehole evidence shows that the Dyneley Knoll Flags have died out (Magraw, 1957, plate 3), and the field evidence indicates that the Billinge Beacon sandstones lie just below the Pasture horizon (Eagar, 1951;1971). In the Survey's terms, therefore, the beds described by Fielding all belong to the Crutchman Sandstone.

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