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Inclusions in the apatites of some igneous rocks

Published online by Cambridge University Press:  14 March 2018

A. W. Groves  and
A. E. Mourant
A. W. Groves
Affiliation:
Geological Survey of Uganda
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Extract

In a recent paper by Dr. W. F. Fleet and Dr. F. Smithson attention was drawn, to the occurrence of dark apatites and apatitcs with dark cores of inclusions in certain sediments of the Midlands of England, and it was pointed out that the only other definite occurrences known of these peculiar apatite grains in either igneous or sedimentary rocks appeared to be restricted to the Old Red Sandstone of the Cardiff area, the ‘newer’ granites of Jersey, and the Leinster granite. These writers also expressed the hope ‘that any future observation of such grains may be recorded with a view to tracing the source of the detrital grains of Welsh and English rocks’.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 22 , Issue 125 , June 1929 , pp. 92 - 99
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1929

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References

page 92 note 1 Fleet, W. F. and Smithson, F., Geol. Mag. London, 1928, vol. 65, pp. 6–8.Google Scholar

page 92 note 2 Heard, A. and Davies, R., Quart. Journ. Geol. Soc. London, 1924, vol. 80, p. 501.Google Scholar

page 92 note 3 Groves, A. W., Geol. Mag. London, 1927, vol. 64, pp. 244, 249.Google Scholar

page 92 note 4 Sollas, W. J., Trans. Roy. Irish Acad., 1891, vol. 29, pp. 434-5Google Scholar; Smithson, F., Geol. Mag. London, 1928, vol. 65, pp. 14, 19.Google Scholar

page 92 note 5 W. Maekie, Trans. Edinburgh Geol. Soc., 1928, vol. 12, p. 28.

page 96 note 1 J. P. Iddings, Rock Minerals, 2nd edit., 1911, p. 524; Weinschenk, E., Petrographic Methods, New York, 1912, p. 237 Google Scholar; Hatch, F. H. and Wells, A. K., Text-book of Petrology, 1926, vol. 1, pp. 114-15.Google Scholar