Note 333 — Chapter XLIII · THE BOSSES AND SHEETS OF GABBRO
Reading edition
Quart. Journ. Geol. Soc. vol. 1. (1894), p. 653. Banded structures have been recognized in many gabbros of different ages. See the references in this paper; also Mr. W. S. Bayley, Journ. Geol. Chicago, ii. (1895), p. 814, and vol. iii. p. 1.