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VII.—Note on the Microscopic Structure of some Pre-Cambrian Rocks

Published online by Cambridge University Press:  01 May 2009

T. G. Bonney
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Extract

Some repetition may be avoided in this note by roughly grouping the specimens, which have been forwarded to me by Dr. Callaway, as (A) Felsitic Rocks, or those resembling felstones; (B) Granitoid and Gneissic Rocks; and (C) Dioritic Rocks. The numbers attached correspond with the reference-numbers in Dr. Callaway's paper. I may mention that in examining the slides I was ignorant of their bearing on the views propounded by the author, and, in some cases, of the exact locality of the specimens.

Type
Original Articles
Information
Geological Magazine , Volume 7 , Issue 3 , March 1880 , pp. 125 - 127
Copyright
Copyright © Cambridge University Press 1880

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References

page 125 note 1 Described by myself, Geol. Mag. 1877, 12. II. Vol. IV. p. 508.Google Scholar

page 126 note 1 Produced by crushing or strain: not uncommon near faults.

page 126 note 2 Quart. Journ. Geol. Soc. 1879, vol. xxxv. p. 322.Google Scholar