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An occurrence of greenalite-chert in the Ordovician rocks of the southern uplands of Scotland

Published online by Cambridge University Press:  14 March 2018

W. Q. Kennedy
W. Q. Kennedy*
Affiliation:
H.M. Geological Survey
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Extract

Rocks composed mainly of the hydrated ferrous silicate greenalite are of very restricted geological and geographical distribution and, up to the present, have been recognized only from certain of the pre-Cambrian sedimentary iron-bearing formations of the Lake Superior region. It is of interest, therefore, to record an additional occurrence, not only from another region but from a later geological system.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 24 , Issue 155 , December 1936 , pp. 433 - 436
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1936

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References

page 433 note 1 Van Hise, C. R. and Leith, C. K., The geology of the Lake Superior region. Monograph U.S. Geol. Surv., 1911, no. 52.Google Scholar Leith, C. K.. Lund, R. J., and Leith, A., Pre-Cambrian rocks of the Lake Superior region. Prof. Paper U.S. Geol. Surv., 1935, no. 184.Google Scholar

page 434 note 1 Jolliffe, F., A study of greenalite. Amer. Min., 1935, vol. 20, pp. 405-425.Google Scholar [Min. Abstr. 6-151.]

page 435 note 1 Jolliffe, F., loc. cit., 1935, p. 410.Google Scholar

page 435 note 2 Leith, C. K., The Mesabi iron-bearing district of Minnesota. Monograph U.S. Geol. Surv., 1903, no. 43, pp. 102-116.Google Scholar

page 435 note 3 Van Hise, C. R. and Leith, C. K., loc. cir., 1911 Google Scholar, pls. XXXVII and XLIII.

page 436 note 1 Leith, C. K. in The geology of the Lake Superior region. Monograph U.S. Geol. Surv., 1911, no. 52, pp. 521-529.Google Scholar

page 436 note 2 Gruner, J. W., The origin of sedimentary iron formations. Econ. Geol., 1922, vol. 17, pp. 407-460.CrossRefGoogle Scholar [Min. Abstr. 3-136.]