The Mining and Quarry Industry of New York State for and Volume 151

The Mining and Quarry Industry of New York State for and Volume 151

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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. 1911 edition. Excerpt: ...mica content. The syenite, though still little used, should furnish very satisfactory road material since the rock is hard, pretty homogeneous, free from mica. and rich in iron minerals. The iron minerals on decomposition would supply a cement. During the summer of 1910 a large, quarry. for State road work, was opened in the syenite along the river road just north of Northville. By far the best rock in the whole district for road building is the gabbro or diabase which occurs in the small dikes shown on the map. The supply of this rock is not large but enough is available to build many miles of highway. This rock, commonly called "trap rock." is black, hard, very homogeneous and very rich in iron minerals. Its durability and binding power are scarcely surpassed by any other kind of road rock. Among the Paleozoic rocks the Potsdam sandstone and the passage beds of the Theresa formation are of little value as road metal because of the tendency to crumble under the traffic. The Little Falls dolomite, especially where freest from sand grains, is better adapted for road work. A large quarry in the dolomite has been opened on the George Close farm about one and one-half miles east of Mayfield and on the railroad. The rock is crushed at the quarry and shipped for road metal and is said to be of good quality. Some of the beds here have a pink color and all of the rock is very compact and homogeneous. The Trenton limestone has been considerably used. especially on the State road between Amsterdam and Broadalbin. A large quarry for this purpose was opened in the Trenton about two miles south-southeast of Perth. The rock gives good satisfaction except perhaps that it is too soft. In the State road work during I909 glacial boulders or...show more

Product details

  • Paperback | 136 pages
  • 189 x 246 x 7mm | 254g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236910524
  • 9781236910523