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The Raised Beaches and Other Terraces of the Channel Islands

Published online by Cambridge University Press:  01 May 2009

A. E. Mourant
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Extract

Raised beaches and terraces generally are a common feature of the coast scenery of the Channel Islands. An attempt is made here to systematize them and to correlate them with other evidence of old base-levels and, very tentatively, with similar terraces elsewhere. The scattered descriptions in the literature have been brought together and detailed field-work, including measurements, has been carried out in Jersey. The main object of the paper is to give an ordered presentation of the facts as a contribution towards the attempts, now being actively pursued, to co-ordinate the drift deposits of north-western Europe. Any excursion beyond the bare facts is made chiefly in the interests of coherence, and many possible and even obvious theoretical conclusions have been omitted. The history of the subject shows that this does not matter as readers will be able to supply immediately all the ideas that have occurred to the writer and many others besides.

Type
Original Articles
Information
Geological Magazine , Volume 70 , Issue 2 , February 1933 , pp. 58 - 66
Copyright
Copyright © Cambridge University Press 1933

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References

page 58 note 1 Collenette, A., “ The Pleistocene Period in Guernsey ”: Trans. Guernsey Soc. Nat. Sci., vii, 1916, 337–408.Google Scholar

page 58 note 2 Ordnance Datura (mean sea-level). Except where the contrary is stated the height given for a raised beach is the mean height of the deposit. Some confusion with regard to levels has occurred in the past owing to the large range of the tides (30 feet in Guernsey, 40 feet in Jersey), which brings the 25 ft. beach very near the modern high-water mark.Google Scholar

page 58 note 3 G., De la Mare, “ Annual Report of Geol. Committee ”: Trans. Guernsey Soc. Nat. Sci., iv, 1900, 12–14.Google Scholar

page 59 note 1 Cachemaille, J. L. V., Descriptive Sketch of the Island of Sark, Guernsey, 1875.Google Scholar

page 59 note 2 Marett, R. R., “Pleistocene Man in Jersey ”: Archaeohgia, lxii, 1911, 449–480.Google Scholar

page 59 note 3 Duprey, E., “ Note sur un ancien Rivage submergé dans la Baie de Grouville ”: Bull. Soc. Jersiaise, ix, 1919, 124–5.Google Scholar

page 59 note 4 Collenette, A., loc. cit.Google Scholar

page 60 note 1 Marett, R. R., loc. cit.Google Scholar

page 60 note 2 Hill, E., “ The Rocks of Sark, Herm, and Jethou ”: Quart. Journ. Geol. Soc., xliii, 1887, 322.CrossRefGoogle Scholar

page 60 note 3 Andrews, C. W., quoting Newton, R. B., “ Report of Archaeological Section ”: Bull. Soc. Jersiaise, ix, 1919, 108.Google Scholar

page 60 note 4 Andrews, C. W., loc. cit.Google Scholar

page 60 note 5 Morin, H., “ Grotte de la Belle Hougue, Trinity ”: Bull. Soc. Jersiaise, ix, 1919, 109–112.Google Scholar

page 60 note 6 Danby, T. W., “ Elevation and Subsidence of Land in Jersey ”: GEOL. MAG., 1876, 143.CrossRefGoogle Scholar

page 60 note 7 Derrick, G., Trans. Guernsey Soc. Nat. Sci., i, 78–82.Google Scholar

page 60 note 8 Prestwich, J., “ On the Evidence for a Submergence of Western Europe ” … etc.: Phil. Trans., clxxxiv, 1893, 903–984.CrossRefGoogle Scholar

page 60 note 9 Lawson, H. S., “ Notes on the Low Level Raised Beach at Portelet Bay ”: Bull. Soc. Jersiaise, vii, 1914, 456–7.Google Scholar

page 61 note 1 Wright, W. B., The Quaternary Ice Age, London, 1914, 93–102.Google Scholar

page 61 note 2 Depéret, C., “ Essai de Coordination Chronologique Générate des Temps Quaternaires ”: Comptes Rendus Acad. Sci., Paris, clxvii, 1918, 418–422.Google Scholar

page 62 note 1 De la Mare, G., loc. cit.Google Scholar

page 62 note 2 Collenette, A., loc. eit.Google Scholar

page 62 note 3 Giving his “ mean of four estimated ” half weight, i.e. taking it as only two observations. Giving this mean full weight would bring the general mean to 63–5 feet.Google Scholar

page 62 note 4 Marett, R. R., loc. cit.Google Scholar

page 63 note 1 Naish, T. E., “ Raised Beach—South Hill ”: Bull. Soc. Jersiaise, ix, 1919, 117–121.Google Scholar

page 63 note 2 Dunlop, A., “ On the Pleistocene Beds of Jersey ”: Bull. Soc. Jersiaise, vii, 1911, 112–120.Google Scholar

page 63 note 3 Danby, T. W., loc. cit.Google Scholar

page 65 note 1 Depéret, C., “ Essai de Coordination Chronologique Générale des Temps Q.uaternaires ”: Comptes Rendus Acad. Sci., Paris, clxvi, 1918, 480–6.Google Scholar

page 65 note 2 Baden-Powell, D. F. W., “ Notes on Raised Beach Mollusca from the Isle of Portland ”: Proc. Malacologkal Soc, xix, pt. ii, 1930, 67–76.Google Scholar

page 66 note 1 Wooldridge, S. W., “ The 200 ft. Platform in the London Basin ”: Proc. Geol. Assoc, xxxix, 1928, 1–26.CrossRefGoogle Scholar

page 66 note 2 C., Depéret, “ Essai de Coordination Chronologique Générale des Temps Quaternaires ”: Comptes Bendus Acad. Sci., Paris, clxvi, 1918, 480–6.Google Scholar