New York State Museum Bulletin Volume 181

New York State Museum Bulletin Volume 181

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1916 edition. Excerpt: ...The streaks and inclusions are the main handicap to the working of the quarry for building purposes, although by selection a good quality of material can be obtained. GRANITE IN THE TOWN OF WILTON, SARATOGA COUNTY A massive gray granite is found in the town of Wilton, Saratoga county, about 2 miles north of Saratoga Springs. It outcrops on the easterly-facing ridge which marks the first elevations of the Precambric highland of the Adirondacks to the west of the Paleozoic plain. The area is of unknown extent but to the north the granite soon disappears, being succeeded by Grenville schists and quartzites with bands of crystalline limestone. The granite has a fine granular texture, the result probably of crushing of a much coarser rock under pressure metamorphism. There is evidence of the original coarse grain in occasional fragments of feldspar and quartz which have escaped the general reduction. In its appearance and physical characters it resembles the earlier series of Adirondack granites, but does not show their well-defined laminated structure owing to the small proportion of dark minerals. The granite was quarried quite actively at one time, and the old quarry face is still conspicuous as a white patch on the face of the ridge. The quarry property is owned by Henry McGurk of Saratoga Springs by whom it was last worked about twenty years ago. It was operated mainly for paving blocks which were used in the streets of Albany and Brooklyn, but some building material was sold of which a specimen structure may be seen in the Hathorn vault in Saratoga Springs. A The quarry face lies about 80 feet above the base of the ridge and is 100 feet long. The stone has been quarried back for 60 feet or more. Apparently the granite was shot down more

Product details

  • Paperback
  • 189 x 246 x 4mm | 154g
  • English
  • Illustrations, black and white
  • 1236846664
  • 9781236846662