Geological Report on Wayne County

Geological Report on Wayne County

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 edition. Excerpt: ...the northwest and this may have allowed the gas and oil that were slowly distilled from the Antrim shales to work their way upward and southeastward until a means of escape to the surface was found. In attempting to locate these shales upon the geological map, help is furnished by the records of gas in the wells and by the amount of drift cover. The greatest dedepressions in the rock surface seem to correspond with the belt of Antrim shales, as though it had suffered greater glacial, or preglacial erosion, than the limestones beneath or the sandstones immediately above. 2-1. Geological Survey of Ohio, vol. I, pt. 1, 1873, p. 156. Traverse group. The next member of the Devonian system, as we descend in the geological scale, is the Traverse, originally described by Winchell as the "Hamilton group" in his First Biennial Report (1861. page 69), and subsequently as the "Little Traverse.' This latter name was shortened to Traverse in 1895 by Lane20 by which it is still known in the state reports. The formation was quite fully described by Rominger20 under the name "Hamilton group" and its fossil contents carefully studied. With no outcrops in the southeastern part of the state he did not recognize its presence in the well records and denied its existence. In northern Ohio, Newberry identified some 15 to 20 feet of highly fossiliferous blue shale with the Hamilton, which formation is now regarded as the "Olentangy shale" of N. H. Winchell. In western Ontario, the same formation is readily recognized in outcrop and well sections, showing a thickness of 225 to 350 feet, and, as in Michigan, consisting of alternating layers of limestone and shale. During the last decade a very complete study of the Traverse has. been more

Product details

  • Paperback | 136 pages
  • 189 x 246 x 7mm | 254g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236652304
  • 9781236652300