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II.—On Statical and Dynamical Metamorphism

Published online by Cambridge University Press:  01 May 2009

John W. Judd
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Extract

It has long been recognized by geologists that rock-masses which have undergone movement, and have thereby been subjected to internal stresses, exhibit, as the consequence of the action upon them of such mechanical forces, unmistakeable evidences of having been greatly modified, alike in their mineralogical and in their structural characters. That the most complete and striking examples of such changes are to be found in the rock-masses which constitute mountain-chains—rock-masses which have actually been made to “flow,” and in so doing have been subjected to shearing movements of the most intense character—was clearly pointed out by Scrope, Darwin, Sharpe, Naumann, and Dana; all of whom referred the foliated structure exhibited by such rock-masses to this cause.

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Type
Original Articles
Information
Geological Magazine , Volume 6 , Issue 6 , June 1889, pp. 243 - 249
Copyright
Copyright © Cambridge University Press 1889

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References

page 243 note 1 Zeitschr. d. d. geol. Gesellsch. Bd. xxi. pp. 282–340.Google Scholar

page 243 note 2 Der Glärnisch (1873), p. 58.

page 243 note 3 Ann. Soc. Géol. du Nord, xi. (1884), p. 188.Google Scholar

page 243 note 4 Geol. von Bayern, i. p. 379.Google Scholar

page 243 note 5 Ann. Address Geol. Soc. Q.J.G.S. vol. xlii. (1886), p. 62.Google Scholar

page 243 note 6 Der Massige Gesteine, 2nd ed. 1886.

page 244 note 1 The bearings of Dr. Guthrie's researches on geological problems have been already pointed out. See this Magazine, 12. III. Vol. V. p. 1, 1888.Google Scholar

page 244 note 2 Amer. Journ. Sc. 3rd ser. vol. xxxvi. (1888), p. 288.Google Scholar

page 244 note 3 I am indebted to my colleague Prof. Rücker, F.R.S., for calling my attention to the valuable researches of Van der Waals, which have had such an important influence on the views of physicists. His essay, which was translated from the original Dutch into German in 1881, is now about to be issued in English form by the Physical Society.

page 244 note 4 Quart. Journ. Geol. Soc. vol. xli. (1885), pp. 374–389;Google Scholar Mineralogical Magazine, vol. vii. (1886), p. 81.Google Scholar

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page 249 note 1 Mineralogical Magazine, vol. viii. p. 186.Google Scholar