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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.

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

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