Geology of the New York City (Catskill) Aqueduct; Studies in Applied Geology Covering Problems Encountered in Explorations Along the Line of the Aqueduct from the Catskill Mountains to New York City

Geology of the New York City (Catskill) Aqueduct; Studies in Applied Geology Covering Problems Encountered in Explorations Along the Line of the Aqueduct from the Catskill Mountains to New York City

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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: ...with the slates. _..... h 6155 The relationship existing between the limestone and t 6 5" all along the eastern margin of the Glenham belt and the smaller--' It mall there is probably some stratigraphic displacement, 1" Places at has-' em The Bald hill mass shows a still greater vertical displacem As now uncovered, the break is partly within the gneiss itself all ' some Partly along a contact with the limestone, and probably 111 P1866-with the quartzite. The slope of the gneiss is alwa)'5 veil base 111 SW6? and often precipitous. A moderate slope at the i ' the surface Pl-'M165, may be interpreted as that of the quartzite or kid.. ' n from which it has been removed in late geological time. T1115 1 1 vertica of 5lPe USH8-lly changes abruptly to a sharp angle with I16 in a5centscents"centsliI1g the mountain. The abundant talus at the bases Oi these scarps is misleading and gives the appearance of H mild' gentler 510IJ than they really possess. The complementary result Ol recession of the summits by weathering is also confusing-s involved a larger area of the gneiss. It seems reasonable to e. the faulted contact of the gneiss of the Mount Honness SP"? and the Fishkill limestone on the northwest of it as primarily due t this thrust. Later or simultaneous tension faulting dropped ml ber 0 limestone east of Bald hill into its present position. A Hum scarp faces at different elevations along the northwestern 51Pe_l the Honness spur in line with the strike of the gneisses, and 'dsllile even in the season of fli-age, mark tension strike faulting of dimm'Shlng intensity eastward from the great normal fault on the ea" of Bald hill. The eastern face of Honness is marked byshow more

Product details

  • Paperback | 234 pages
  • 189 x 246 x 12mm | 426g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236957415
  • 9781236957412