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I.—A Note on the Geology of Somali-land, based on Collections made by Mrs. E. Lort-Phillips, Miss Edith Cole, and Mr. G. P. V. Aylmer

Published online by Cambridge University Press:  01 May 2009

J. W. Gregory
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Extract

Since the famous expedition of the late F. L. and W. James, of E. Lort - Phillips and G. P. V. Aylmer, in 1884–5, opened the Somali plateau to European exploration, the country has been repeatedly traversed. A valuable series of geographical memoirs, hunting journals, and bluebooks has described the main features in the topography of the country, and given many suggestions as to its geological structure. The collections of Dr. Révoil and Prof. Keller have proved that Neocomian beds occur there, and thus have shown that it is of greater interest than most of the monotonous unfossiliferous wastes of East Africa.

Type
Original Articles
Information
Geological Magazine , Volume 3 , Issue 7 , July 1896 , pp. 289 - 294
Copyright
Copyright © Cambridge University Press 1896

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References

page 289 note 1 F. L. James, “ The Unknown Horn of Africa,” 1888.

page 289 note 2 Described by de Rochebrune, T. in Geo. Révoil, “Faune et flore des pays Çomalis,” p. 39, pls. i–iv. Paris, 1882.Google Scholar

page 289 note 3 Described by Mayer-Eymar, C.. “Ueber Neocomian: Versteinerungen aus dem Somali-land”: Vierteljahrschrift Naturfors. Gesells. Zürich, Jahrg. xxxviii, 1893, pp. 249–65, pls. i, ii.Google Scholar

page 289 note 4 “Diagnoses Africanæ”, pt. vii: Bull. Misc. Inform. Kew, No. 105, 1895, pp. 211–30.Google Scholar E. Lort-Phillips, ibid., 1895, pp. 211–30.

page 290 note 1 Swayne, H. G. C., “Seventeen Trips through Somali-land,” 1895, pp. 361–7.Google Scholar

page 290 note 2 The Belemnite, the Lamellibranch, and the two Brachiopods have been determined respectively by Messrs. G. C. Crick, R. B. Newton, and F. A. Bather. Notes by Mr. Newton and Mr. Crick are published herewith, and a selection of the specimens has been presented by Mrs. Lort-Phillips to the Geological Department of the British Museum (Natural History).

page 290 note 3 To determine the character of the mineral in this rock, as it throws light on the nature of some rocks collected by Dr. Donaldson Smith much further to the south, Mr. L. J. Spencer has kindly measured one of the crystals, and has determined them as epidote.

page 291 note 1 Neocomiensis, Cyathophora, de Fromentel, E., “Description des polypiers fossiles de l'E′tage néocomien,” p. 41, pl. v, figs 11, 12. Paris, 1857.Google Scholar

page 291 note 2 Koby, F., “Monographie des Polypiers Jurassiques de la Suisse”, pt. 2, p. 86, pl. xxix, fig. 2: Mém. Soc. pal. Suisse, vol. viii, 1882 (1881).Google Scholar

page 293 note 1 Blanford, W. T., “Observations on the Geology and Zoology of Abyssinia,” 1870. pp. 176–80, 199–203, pl. viii.Google Scholar

page 293 note 2 Ferret, & Galinier, , “Description géologique du Tigré et du Samen Voyage en Abyssinie,” t. iii, 1847, pp. 54–6.Google Scholar

page 293 note 3 Douvillé, H., “Examen des fossiles rapportés du Choa par M. Aubry”: Bull. Soc. géol. France, sér. 3, t xiv, 1886, pp. 223–41, pl. xiiGoogle Scholar.

page 293 note 4 Rochebrune, in Révoil, op. cit., p. 26.