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V.—Contributions to the Geology of Ceylon: II. Silicification of Crystalline Limestones.

Published online by Cambridge University Press:  01 May 2009

A. K. Coomákaswámy
A. K. Coomákaswámy
Affiliation:
Director of the Mineral Survey of Ceylon.
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Extract

The occurrence of small quantities of chert and opal, usually in or near exposures of crystalline limestone, but very often in fragments or boulders not quite in sitû, is not unusual in Ceylon. For some time the origin of these siliceous rocks remained obscure; observations made within the present year (1903), however, enable me to give a more detailed account of their mode of occurrence. I have had the advantage of my colleague Mr. James Parsons' company in examining many of the exposures, and have been able to discuss with him the problems raised.

Type
Original Articles
Information
Geological Magazine , Volume 1 , Issue 1 , January 1904 , pp. 16 - 19
Copyright
Copyright © Cambridge University Press 1904

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References

page 16 note 1 The locality can be identified on the map, Q.J.G.S., vol. lviii (1902), pi. xiii, but the position of the bands of limestone is not correctly indicated there.

page 18 note 1 Uva Manual, by H. White, Colombo, 1903, p. 82.

page 18 note 2 Ceylon Administration Reports, 1902, Survey Department, p. B. 30.

page 18 note 3 For a discussion of this question, see Eaisin, C. A., Proc. Geol. Assoc, XVIII (1903), pp. 71–82.Google Scholar