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The dolerite-chalk contact of Scawt Hill, Co. Antrim. The production of basic alkali-rocks by the assimilation of limestone by basaltic magma1 (With Plates XVII and XVIII.)

Published online by Cambridge University Press:  14 March 2018

C. E. Tilley  and
H. F. Harwood
C. E. Tilley
Affiliation:
University of Cambridge
H. F. Harwood
Affiliation:
Imperial College of Science, London
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Extract

In the following pages an account is given of the rock assemblages produced at the contact of a dolcrite intrusion with chalk. Owing to the intense localized assimilation of calcium carbonate by the dolerite magma, unusual rock types are produced. The products of the endogenous contact-zone are dealt with in detail. Those of the exogenous contact-zone have in part been described already, but some additional data are incorporated in this account.

Information

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 22 , Issue 132 , March 1931 , pp. 439 - 468
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1931

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Footnotes

page 439 note 1

Four of the new chemical analyses presented in this paper have been made by Dr. H. F. Harwood. Four other chemical analyses have been made in the Fresenius Chemical Laboratories, Wiesbaden. The field work and petrological investigations have been carried out by Dr. C. E. Tilley, who is also responsible for the writing of the paper.

References

page 439 note 2 Tilley, C. E., Geol. Mag., 1928, vol. 65, p. 371 CrossRefGoogle Scholar ; 1929, vol. 66, p. 347 ; 1930, vol. 67, p. 168 [Min. Abstr., vol. 4, pp. 84, 218, 330]. Min. Mag., 1929, voL 22, p. 77 ; 1930, vol. 22, p. 222.

page 443 note 1 Tilley, C. E., Min. Mag., 1929, vol. 22, pp. 77–86.Google Scholar

page 444 note 1 E. V. Shannon, Proc. U.S. Nat. Museum, 1925, vo1. 66, art. 28, p. 11. [Min. Abstr., vol. 3, p. 204.]

page 444 note 2 Tilley, C. E., Geol. Mag., 1930, vol. 67, pp. 168–169.CrossRefGoogle Scholar

page 446 note 1 Wright, F. E., Amer. Journ. Sci., 1908, ser. 4, vol. 26, p. 551.Google Scholar

page 446 note 2 W. Eitel, Neues Jahrb. Min., 1923, Beil.-Bd. 48, p. 63.

page 447 note 1 Such K2O as is not incorporated in normative orthoclase is here computed as kaliophilite, instead of leucite, and added to nepheline. No. 4 is calculated water-free.

page 453 note 1 A. Lacroix, Min. Madagascar, 1922, vol. 2, pp. 639, 645.

page 453 note 2 Wahl, W., Tschermak's Min. Petr. Mitt., 1907, vol. 26, p. 118.Google Scholar

page 455 note 1 H. S. Washington and H. E. Merwin, Amer. Min., 1923, vol. 8, p. 104. [Min. Abstr., vol. 2, p. 305.]

page 455 note 2 Larsen, E. S. and Schaller, W. T., Journ. Washington Acad. Sci., 1914, vol. 4, p. 480.Google Scholar

page 457 note 1 Tilley, C. E., Geol. Mag., 1929, vol. 66, pp. 347–353.CrossRefGoogle Scholar

page 458 note 1 Tilley, C. E., Min. Mag., 1930, vol. 22, pp. 222–224.Google Scholar

page 466 note 1 Brouwer, H. A., Proc. Roy. Acad. Amsterdam, 1928, vol. 36, p. 492.Google Scholar

page 467 note 1 Shand, S. J., Geol. Mag., 1930, vol. 67, p. 415.CrossRefGoogle Scholar