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On the Overlap of the Upper Gault in England and on the “Red Chalk” of the Eastern Counties

Published online by Cambridge University Press:  01 May 2009

F. L. Kitchin  and
J. Pringle
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Extract

During the years 1918–19 we investigated the relations of the beds exposed in a remarkable section at Shenley Hill, north of Leighton Buzzard. Our conclusion that lenticles of limestone of basal varians-age are there overlain by a mass of Upper Gault showing an inverted order of zones provided an interesting glacial problem. This seemed to us of less importance, however, than the discovery that these transported masses had been deposited upon a, floor formed by a basement-bed of transgressive Upper Gault, which there rests immediately upon the local top of the Lower Greensand. The chief interest attaching to this example of glacial disturbance lay in the resulting disposition of particular beds in anomalous zonal relationships. Other striking instances of the glacial transportation of large masses of rock were known to occur in the tract of country to the north-east of this locality. The difference was chiefly one of degree, not of kind. We realized that the detection here of an overlap of the Upper Gault might prove to be a matter of greater moment, possessing, perhaps, a far-reaching stratigraphical significance. A study of the literature dealing with this formation, coupled with the examination of the Gault at a few localities in other counties where an overlap takes place, convinced us that a fuller investigation of the subject would prove fruitful in results.

Type
Original Articles
Information
Geological Magazine , Volume 59 , Issue 4 , April 1922 , pp. 156 - 166
Copyright
Copyright © Cambridge University Press 1922

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References

page 157 note 1 Kitchin, F. L. & Pringle, J., “On an Inverted Mass of Upper Cretaceous Strata near Leighton Buzzard, Bedfordshire; and on an Overlap of the Upper Gault in that Neighbourhood”: GEOL. MAG., Vol. LVII, 1920, pp. 1–15, 52–62, 100–13.Google Scholar

page 158 note 1 Cf. Barrois, C., Recherches sur le Terrain Crétaci Supérieur de l'Angleterre et de l'Irlande, 1876, p. 7.Google Scholar

page 160 note 1 The Cretaceous Rocks of Britain, vol. i, “The Gault and Upper Greensand of England”: Mem. Geol. Surv., 1900, p. 145.Google Scholar

page 161 note 1 White, H. J. Osborne, “A Short Account of the Geology of the Isle of Wight”: Mem. Geol. Surv., 1921, p. 51.Google Scholar

page 162 note 1 Strahan, A., “The Geology of the Isle of Purbeck and Weymouth”: Mem. Geol. Surv., 1898, pp. 155–8.Google Scholar

page 163 note 1 Newton, R. B., “An Account of the Albian Fossils lately discovered at Okeford Fitzpaine, Dorset”: Proc. Dorset Nat. Hist, and Ant. Field Club, vol. xviii, 1897, p. 66.Google Scholar

page 163 note 2 Jukes-Browne, A. J., op. cit., p. 188. W. D. Lang, “The Zone of Hoplites interruptus (Bruguiére) at Black Ven, Charmouth”: Geol. Mag., 1904, p. 124.Google Scholar

page 163 note 3 Meyer, C. J. A., “On the Cretaceous Rocks of Beer Head and the adjacent Cliff-sections”: Quart. Journ. Geol. Soc., vol. xxx, 1874, p. 372.Google Scholar

page 164 note 1 Jukes-Browne, A. J., The Cretaceous Bocks of Britain, vol. i, “The Gault and Upper Greensand of England”: Mem. Geol. Surv., 1900, pp. 275 et seq.Google Scholar

page 164 note 2 “Summary of Progress for 1920”: Mem. Geol. Surv., 1921, p. 62.Google Scholar

page 165 note 1 Kitchin, F. L. & Pringle, J., Geol. Mag., Vol. LVII, 1920, pp. 52, 53.CrossRefGoogle Scholar

page 165 note 2 See also Kitchin, F. L. & Pringle, J., “Excursion to Leighton Buzzard”: Proc. Geol. Assoc., vol. xxxii, 1921, p. 173.CrossRefGoogle Scholar

page 165 note 3 Quart. Journ. Geol. Soc., vol. lix, p. 375.Google Scholar