The Quarterly journal of the Geological Society of London . sive in the granulitic rock, which was, at that time, sub-stantially in its present condition, and that, as a rule, their relationshave not been disturbed subsequently to any noteworthy serpentine has broken through the granulitic rock, some- * Quart. Journ. Geol. Soc. vol. xliv. (1888) p. Geol. Mag. (1888) p. 554, (1890) p. 505. ox Tin: CRYSTALLINK ROCKS OF TlIK DlSTllICT. 4f5l> times apparently twistinj^j up the raf^j^ccl ends into dykc-liko masses,sometimes porliaps breaking off and carryini^;; up liugo
The Quarterly journal of the Geological Society of London . sive in the granulitic rock, which was, at that time, sub-stantially in its present condition, and that, as a rule, their relationshave not been disturbed subsequently to any noteworthy serpentine has broken through the granulitic rock, some- * Quart. Journ. Geol. Soc. vol. xliv. (1888) p. Geol. Mag. (1888) p. 554, (1890) p. 505. ox Tin: CRYSTALLINK ROCKS OF TlIK DlSTllICT. 4f5l> times apparently twistinj^j up the raf^j^ccl ends into dykc-liko masses,sometimes porliaps breaking off and carryini^;; up liugo a dyke of serpentine parts two masses of granulitic rock, theouter margins of each being in contact with serpentine, which con-tinues for some distance ; there a tongue of serpentine is forced likea wedgo into a banded mass of the granulitic rock, or is protrudedbetween two of the layers. Here, in a similar mass, the bands arenipped up or cut off obliquely by the serpentine (fig. 1); there, in Fig. 1.—Section in Quarry near Kildown 1. Serpentine. 2. Reddish granitoid rock, with dark bands (Granulitic Group). one of less regular structure, the granitic veins may be seen to runup to the serpentine, and be, as it were, cut off by it (fig. 2). Sofar as structure goes, the relations of the Granulitic Group and theserpentine are identical with those which are exhibited by bandedgneisses or schists, and granites intrusive into them. Fig. 2.—Section near Cavour/a Roclcs.
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Keywords: ., bookcentury1800, bookdecade1840, bookidquarte, booksubjectgeology
