. Annual report. New York State Museum; Science; Science. ^ife Upper figure. Hand specimen of the green schist, injected by granite, shown in plate 4. The central band here is one of those which appear as uniform, white bands in that view; here shown to consist of schist thoroughly and minutely broken up by, and inclosed in the granite. Lower figure. Hand specimen of sheared, banded, acid gneiss from near the shore of Wellesley island, due west of Alexandria Bay. Shearing has produced numerous, slight faults, the shear planes are solidly welded up by secondary minerals, and dikes of the Picton
. Annual report. New York State Museum; Science; Science. ^ife Upper figure. Hand specimen of the green schist, injected by granite, shown in plate 4. The central band here is one of those which appear as uniform, white bands in that view; here shown to consist of schist thoroughly and minutely broken up by, and inclosed in the granite. Lower figure. Hand specimen of sheared, banded, acid gneiss from near the shore of Wellesley island, due west of Alexandria Bay. Shearing has produced numerous, slight faults, the shear planes are solidly welded up by secondary minerals, and dikes of the Picton granite cut across these, these of course not showing in the specimen. H. P. Gushing, photo. 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 New York State Museum. Albany : University of the State of New York
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectscience, bookyear1902
