Bulletin Volume 2, PT. 1

Bulletin Volume 2, PT. 1

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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. 1914 edition. Excerpt: ...Madisonville limestone and 115 to 125 feet above No. 9 coal. This coal is generally regarded by those mining it as Coal No. 14, but there is some doubt as to whether there is another coal between this and No. 12. In bore hole 14 it is the first coal above No. 11 while in bore 15 it is the second coal above No. 11. In bore 14 the distance between the Madisonville limestone and the coal is 184 feet, and 185 feet for the same interval in NEBO COAL. bore 15. In bore 20 coals Nos. 11 and 12 are absent and the Nebo coal is here the first coal above No. 9. The interval between the Madisonville limestone and the Nebo coal in this bore is 189 feet. The distance between the Madisonville limestone and the Nebo coal increases to the southeast and in bore 16, three miles west of Nebo, it is 209 feet and 6 inches. The Nebo coal is correlated with the coal found over a considerable area in Webster County, in the region of Clay, Wheatcroft and Hearin and now mined at Baker. This correlation was first suggested by Glenn in Bulletin No. 17, Kentucky Geological Survey, 1912. His correlations were based on its position with reference to No. 9 coal. Since there is considerable irregularity in the interval between No. 9 coal and the Nebo coal due to unconformities the writer has endeavored to make the correlation with reference to the Madisonville limestone. Recent investigations in Henderson County indicate that the Smith Mills and Corydon coals can be correlated with the Nebo coal. In nine core hole records in the region of Wheatcroft, Hearin and Clay, Webster County, the interval between the lower member of the Madisonville limestone and the Nebo or Baker coal varies from 153 to 169 feet, with a general average of 162 feet. This shows a thinning of the interval...show more

Product details

  • Paperback | 78 pages
  • 189 x 246 x 4mm | 154g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236498003
  • 9781236498007