. Bulletin of the Geological Society of America. Geology; Geology -- United States. GRANITIC MASSES ENCLOSED IX GNEISS. 373 and sizes, of mica schist are seen in the gneiss where the gneiss predominates, and of gneiss in the schist where the schist is the main rock.' * In some instances a mass of syenite inclosed in schist holds in itself fragments of schist, as in fig. 5. In many cases also the schistic beds wrap. Figure 5.—Schist inclosing Granulite, itself embodying .1/"-" schist, Burntside I around the gneissic fragmeuts, indicating that the fragments were introduced while the sc
. Bulletin of the Geological Society of America. Geology; Geology -- United States. GRANITIC MASSES ENCLOSED IX GNEISS. 373 and sizes, of mica schist are seen in the gneiss where the gneiss predominates, and of gneiss in the schist where the schist is the main rock.' * In some instances a mass of syenite inclosed in schist holds in itself fragments of schist, as in fig. 5. In many cases also the schistic beds wrap. Figure 5.—Schist inclosing Granulite, itself embodying .1/"-" schist, Burntside I around the gneissic fragmeuts, indicating that the fragments were introduced while the schist was in course of formation ; and indicating, too, that the gneiss had been already consolidated when the schist was forming (see fig. tip. In very many (if these cases the gneissoid fragment has been bent in Figure S. -Bydromiea Schist wrapped around Masses of Granite, Farm Lake, Minn. a marked degree and shaped to the enwrapping schist. This seems to show that the consolidated gneiss had been rendered plastic again. Sometimes the schists appear intertwisted without the presence of gneissic fragments.^ Sometimes the included fragments are quartzitic, and the mutual actions are the same.§ These phenomena indicate some relative * H. V. Winchell, Sixteenth Mian. Rep., p. 428. t-See further illustrations, fig. 36, Fifteenth Ann. Rep. Minn., p. 89 ; Ibid., fig. 38, p. 97. This ia illustrated in figs. 4u and 42, Fifteenth Ann. Report Minn., pp. ill and 116. \ Si,,/,, nth Minnesota Report, p. 409. XLIX—Bin,. Soc. , Vol. 1, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Geological Society of America. [New York, etc. ] The Society
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