File:Transactions (1871) (14764109455).jpg

Identifier: transmining12amer (find matches)
Title: Transactions
Year: 1871 (1870s)
Authors: American Institute of Mining, Metallurgical, and Petroleum Engineers
Subjects: Mineral industries
Publisher: New York (etc.)
Contributing Library: Robarts - University of Toronto
Digitizing Sponsor: University of Toronto

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e northwestern part, and highly tilted in the moreeasterly sections, while the rocks still further east, outside the coal,stand nearly vertical, corroborates the accepted view of the forma-tion of the Appalachian chain by pressure from the southeast andfrom below, along the Atlantic coast. The condition of the rocksalso indicates the strongest disturbing and altering forces to haveoperated from the eastward. The faults in that section are muchdeeper, going down to the Silurian rocks, while in the westerlysection they extend only to the Subcarboniferous. Going from east to west we have the following valleys determinedgenerally by faults and anticlinals: The Coosa valley, dividingthe metamorphic region from the coal-field of Lookout Mountainand the Coosa coal-field; Cahaba valley, dividing the Coosa fromthe Cahaba coal-field; Jones, Roups, or Wills valley, dividingthe Cahaba from the Warrior coal-field in the southwest, and the VOL. XII.—10 146 CONTRIBUTIONS TO THE GEOLOGY OF ALABAMA.
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COXTRIBUTIOXS TO THE GEOLOGY OF ALABAMA. 147 IxK)kout mountain from Sand and Raccoon ^Fountains in the nortli-east; MurtVeos vallev, dividing parts ottlie Warrior eoal-tiel<l fromSand Mountain ; and Tennessee valley (the northeastern part),dividing parts of the Cumberland coal-field extending into Alabamafrom Raccoon Mountain. This gives us from west to east the fol-lowing division of the Alabama coal-fields: (1) spurs of the Cum-berland ; (2) the ^^arrior; (3) the Raccoon and Sand mountains;(4) the Lookout Mountain; (5) the Cahaba; and (G) the Coosacoal-fields. The first, third, and fourth of these may be dismissed with a fewwords. The spurs of the Cumberland Mountain in Alabama maycontain in parts one or two workable coal-seams of from two to fourfeet in about 500 feet of coal-measures. Portions of the Raccoon andSand mountains may contain, in 600 to 700 feet of coal-measures,two or three workable seams from two to four feet thick. In thesouthern end of Sand mountain, between Jon

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