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V.—The Post-Glacial Geology and Physiography of West Lancashire and the Mersey Estuary
Published online by Cambridge University Press: 01 May 2009
Extract
My attention having been directed, during the construction of the Main Outfall Sewer at Birkdale, to the Post-Glacial deposits underlying the great plain between Waterloo and Crossens, and having, through the execution of numerous other works in the district, peculiar advantages for prosecuting investigations in Post-Glacial Geology, I am induced to lay before your readers several interesting facts, and also, as I venture to think, some important deductions therefrom.
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References
page 113 note 1 Chambers calls them terraces. See Ancient Sea Margins, p. 22
page 113 note 2 Explanation of Geological Map, 90 S.E.
page 113 note 3 “Drift Deposits of Manchester and its Neighbourhood.”—Manchester Literary and Philosophical Society's Memoirs, vol. viii.
page 114 note 1 “On the Erratic Tertiaries, etc.,” Quart. Journ. Geol. Soc, 1851, vol. vii. p. 201.
page 114 note 2 Geology of the Country around Liverpool. Morton, p. 46.
page 114 note 3 Paper on the “Geology of the Bewsey Valley.”'Paterson.
page 115 note 1 Mr. Vawser, Borough Engineer of Warrington, tells me the surface of the ground is between 19 and 20 feet above Ordnance datum.
page 115 note 2 Mr. Chas. De Rance considers it to be a fresh-water deposit, and has termed it Cyelas clay, and it is so called on the Map 90 S.E.; but he must have been misled by finding dead shells of Cyelas cornea thrown out in cleaning the drains or sluices excavated through the peat into the blue clay.
page 117 note 1 Mr. Binney and Mr. Talbot also found an intercalated bed of blue silt by Downholland Brook.—See “On the Petroleum found in Downholland Moss,” Manchester Geological Society's Proceedings, March, 1843.