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3. Contact-Phenomena of some Scottish Olivine-Diabases

Published online by Cambridge University Press:  15 September 2014

Ernst Stecher  and
Archibald Geikie
Ernst Stecher
Affiliation:
Leipzig
Archibald Geikie
Affiliation:
Director-General of the Geological Survey
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Extract

In the second and third numbers of the ninth volume of Tschermdk's Mineralogische und petrographische Mittheilungen, I published the results of an examination of some “dolerites” from the Carboniferous basin of the Firth of Forth, the material for which I obtained through the kindness of Prof. Archibald Geikie. It is true most of the “dolerites” are already well known through the valuable writings of Professor A. Geikie and Mr Allport, but a special study of the modifications of the rock in the different parts of any one volcanic mass has not yet been the subject of any paper. Having elicited many facts of petrological interest, I purpose giving in this communication a short account of my investigations.

Type
Proceedings 1887-88
Information
Proceedings of the Royal Society of Edinburgh , Volume 15 , 1889 , pp. 160 - 172
Copyright
Copyright © Royal Society of Edinburgh 1889

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References

note * page160 My friend Professor Zirkel, having told me that he was often at a loss for a subject of original investigation to prescribe as a thesis for the doctorate at Leipzig, and having asked me for assistance in the matter, I suggested the contact-nietamorphism and connected phenomena of the eruptive rocks in the basin of the Firth of Forth, which had never been fully investigated. He accepted the suggestion, and I forwarded to him a series of specimens collected as material for the purpose of working out the subject. The thesis was eventually taken up by Dr Stecher, and the results of his investigations are condensed in the present paper.—A, G.

note † page 160 Geikie, Arch., “On the Carboniferous Volcanic Rocks of the Basin of the Firth of Forth,” 1879, Text-Book of Geology, p. 535, &c.Google Scholar

note ‡ page 160 Allport, S., “On the Microscopic Structure and Composition of British Carboniferous Dolerites,” Quart. Jour. Oeol. Soc, 1874, vol. xxx. p. 529, &c.CrossRefGoogle Scholar

note * page 161 On the Garb. Vole. Rocks, &c, p. 488.

note † page 161 Törnebohm, On Sveriges wichtigare diabas och gabbro arter.

note ‡ page 161 Höpfner, , “Ueber das Gestein vom Monte Tajumbina in Peru,” Neues Jahrb.f. Min., 1881, vol. ii. p. 164.Google Scholar

note § page 161 Rosenbusch, Mikroskopische Physiographic, Anfl. 2, Band. ii. p. 193.

note * page 163 Liebe, and Zimmermann, , “Die jüngeren Eruptivegebilde im S. W. Ostthüringens,” Jahrb. d. preuss. Landeranstalt, 1885, p. 178.Google Scholar

note † page 163 Rohrbach, , “Ueber die Eruptivgesteine im Gebiete d. mä'hr. Kreideform,” Tschermak's Mineral, u. petr. Mitth., 1885, vii. pp. 27 and 54.Google Scholar

note ‡ page 163 Text-Book, pp. 535, 536.

note * page 169 Neues Jahrbuch fur Mineralogie, B.B. iv. p. 590. See also Quart. Jour. Geol. Soc, xl. p. 343, where Eutley describes analogous phenomena in some obsidians.

note † page 169 Neues Jahrbuch für Mineralogie, 1883, i. p. 54.Google Scholar

note * page 170 Quart. Jour. Geol. Soc., 1885, xli. pp. 354–418.Google Scholar

note * page 171 Address, Quart. Jour., xxx.

note † page 171 TscAermak's Mineral, u. petrogr. Mitth., 1885, vol. vii. p. 32.Google Scholar