Guide to the Geology and Paleontology of the Schoharie Valley in Eastern New York Volume 92

Guide to the Geology and Paleontology of the Schoharie Valley in Eastern New York Volume 92

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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. 1906 edition. Excerpt: ...do not show this feature because they are coated with a layer of calcite, formed there while the wall bounded a Joint fissure, by lime brought in in solution. Feet Inches f 5 Thin bedded lime mudrocks weathering gray and averaging an inch or less in thick ness. Tentaculites gyracan t h u-s is abundant on the surfaces of the thin layers, when weathered, and this is one of the best places for collecting this fossil. With it occur S p i r i f e r v a n uxemi and Monotrypella ar b u s c u l u s......................... 1 3 f 4 Lime mudrock. somewhat arenaceous in texture with Leperditia alta and a few other fossils.................... 2 f 3 Dark lime mudr-ock, of sufliciently arena ceous texture to be rough on the weathered surfaces, and showing fine stratification on exposed edge, continuing below the floor of the quarry................... 1 6 Total Manlius exposed............... 26 10 5 Section in Becker's quarry below Lasell park Plate 18 This section begins at the highest outcrops of limestone in the bed of the small stream which traverses the park. The succession is as follows fig. 195: Goeymans Feet Inches h2-hx Lime sandrocks with fossils, exposed at intervals in low ledges in the park, chiefly thin bedded and mostly covered......... 33 h 1 Crystalline lime sandrock forming a cliff and containing Sieberella gale-a t a, Orthothetes and other bracl1io-pods, together with numerous crinoid joints................................ 17 Total Coeymans.................... 50 Transition Feet g 2-g 7 Thin bedded lime sandrocks and lime mudrocks, with shaly argillaceous beds, the whole weath-ering back in a slope, with the Coeymans over-hanging.................................. 5 g 1-g2 Thin bedded limestones mostly weathering into a sloping...show more

Product details

  • Paperback | 74 pages
  • 189 x 246 x 4mm | 150g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236819756
  • 9781236819758