Proceedings of the Staten Island Association of Arts and Sciences Volume 1

Proceedings of the Staten Island Association of Arts and Sciences Volume 1

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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. 1907 edition. Excerpt: ...wells of Long Island obtain their supply, and this horizon is shown to have a quite uniform dip or slope towards the southeast of about 80-100 feet per mile, with a strike approximately parallel with the coast line of the adjacent mainland. On the north shore of the island, from Lloyd's Neck, westward, the top of this horizon is at a depth of approximately 200 feet below sea level while at Barren Island on the south shore it is at a depth of about 650 feet. On Plate II is depicted a map of Long Island and vicinity on which the surface locations of the flowing wells are indicated and those of equal depth are connected by lines, thus producing a series of curves of equal depth; and these curves are theoretically extended across the lower bay and the south shore of Staten Island into New Jersey, where they are connected with similar curves of known equal depth. This map and the conclusions to be drawn from it are of special interest to us in connection with the problem of our local water supply, inasmuch as the south shore of Staten Island, from the Narrows to Princes Bay, is included between the theoretical 200 and 300 feet curves. It is well known that the same Cretaceous deposits, at least in part, extended from New Jersey through Staten Island to Long Island, and the facts now brought to light in this paper strongly indicate that, unless some local conditions obtain which are not apparent, the water-bearing Lloyd sand ought to be found in this region at a depth of 200-300 feet below sea level. The probable presence of this water-bearing horizon has been frequently mentioned in connection with our local water supply problem, and it is interesting to recall that a calculation of its theoretical depth below sea level was made some...show more

Product details

  • Paperback | 56 pages
  • 189 x 246 x 3mm | 118g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236881273
  • 9781236881274