...only in the two zones of metamorphosed sediments which flank the granite belt. Pegmatitio and apUtic rocks. — Reference has already been made to the...more or less idiomorphically developed and containing man}' gas or fluid inclusions, together with allotriomorphic quartz. Muscovite occurred as an accessory...

...Professional Paper No. 1, US Geological Sun-ey, p. 47 (1902). "Pegmatitic and aplitic rocks. . . . These have more the appearance of segregations than...Another occurrence of pegmatite typically developed. . . . Here a coarse, white, pegmatitic rock cuts the greenstone schists. ... In thin section these...

...Surrey, p. 47 (1902). Pegmatitic and aplitic rocks. . . . These have more the appearance of igations than true injections. In thin section a specimen from one of these wen to be composed essentially of orthoclase and plagioclase more or lens idioihically developed, and...

...of Geology, vol. ii., No. 2, pp. 97 to 122 (Feb. -Mar., 1901). " Pegmatitic and aplitic rocks. . . . These have more the appearance of segregations than...Another occurrence of pegmatite typically developed. . . . Here a coarse, white, pegmatitic rock cuts the greenstone schists. ... In thin section these...

...intergrowth with quartz. AH Brooks : » " Pegraatitic and aplitic rocks. . . . These have more the appearance segregations than true injections. In thin section a specimen from one of these waa seen to be composed essentially of orthoclase and plagioclase more or less idiomorphically developed,...