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The Stratigraphical Relations of the Red Rock at Hunstanton

Published online by Cambridge University Press:  01 May 2009

F. L. Kitchin  and
J. Pringle
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Extract

IN his interesting paper entitled “ The Petrography of the Hunstanton Red Rock”1 Dr. R. H. Rastall arrived at conclusions regarding the relation of the Red Rock to the strata below and above it which are strikingly at variance with the result of our own examination of the series exposed in the well-known cliffsection at Hunstanton.2 While we considered that the Red Rock has no connection with the underlying Carstone, though resting on it with apparent conformity, and that the junction between these contrasted, beds marks a stratigraphical gap of great magnitude, we found no reason to recognize a break between the top of the Red Rock and the overlying Chalk. Dr. Rastall, on the other hand, impressed by the fact that there is a certain gradation and an appearance of conformability between the Carstone and the Red Rock, took this as showing continuity between these deposits; while the appearance of a physical break at the top of the Red Rock seemed to him to contradict our view that the top bed of the Red Rock and the Chalk above (“ Sponge Bed ”) are inseparable geologically.

Type
Original Articles
Information
Geological Magazine , Volume 69 , Issue 1 , January 1932 , pp. 29 - 41
Copyright
Copyright © Cambridge University Press 1932

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References

page 29 note 1 Geol. Mag., LXVII, 1930, 436–58.Google Scholar

page 29 note 2 Kitchin, F. L. and Pringle, J., “ On the Overlap of the Upper Gault in England and on the ‘ Red Chalk ’ of the Eastern Counties ”: Geol. Mag., LIX, 1922, 194–8.CrossRefGoogle Scholar

page 30 note 1 Op. cit., 440.Google Scholar

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page 31 note 1 Judd, J. W., “ Additional observations on the Neocomian Strata of Yorkshire and Lincolnshire, with notes on their Relations to the Beds of the same age throughout Northern Europe ”: Quart. Jour. Geol. Soc., xxvi, 1870, pl. xxiii, fig. 3.Google Scholar

page 31 note 2 Ibid.., 331.

page 32 note 1 See Spath, L. F., “ On some Ammonoidea from the Lower Greensand,” Ann. Mag. Nat. Hist., 10, v, 1930, 422, et seq.Google Scholar

page 32 note 2 The succession of zones is summarized in tabular form in the Handbook of the Geology of Great Britian, London, 1929, 385 (Aptian zones), 393 (Albian zones).Google Scholar

page 33 note 1 Pringle, J., “ On the Concealed Mesozoic Rocks in South-west Norfolk,” “ Summary of Progress ” for 1922: Mem. Gaol. Surv., 1923, 128, 129, 132, 133.Google Scholar

page 34 note 1 Op. cit., 1867, 242.Google Scholar

page 34 note 2 Jukes-Browne, A. J., “ The Gault and Upper Greensand of England,” Mem. Geol. Surv., 1900, 305.Google Scholar

page 35 note 1 Loc. eit., 451.Google Scholar

page 36 note 1 Op. cit., 447.Google Scholar