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IV.—On some Points in the Geology of the East Lothian Coast
Published online by Cambridge University Press: 01 May 2009
Extract
The interesting relation between the Porphyrite of Whitberry Point, at the mouth of the Tyne near Dunbar, and the adjacent sedimentary rocks, was first noticed, we believe, by Professor Geikie, who speaks of it in the Memoirs of the Geological Survey of East Lothian, pages 40 and 41, and again in the new edition of Jukes's Geology, pp. 269. The volcanic mass which forms the point, consists of a dark felspathic base with numerous crystals of augite: it is circular in form, and is exposed for two-thirds of its circumference in a vertical precipice facing the sea, about twenty feet in height.
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References
page 163 note 1 Memoirs of Geological Survey of Scotland, Sheet 33, pp. 40, 41.
page 163 note 2 Note on p. 41 of Mem. Geol. Survey of East Lothian.
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