The Petrology and Origin of the Lafayette Gravel: Part 1. Mineralogy and Petrology

  title={The Petrology and Origin of the Lafayette Gravel: Part 1. Mineralogy and Petrology},
  author={Paul Edwin Potter},
  journal={The Journal of Geology},
  pages={1 - 38}
  • P. E. Potter
  • Published 1 January 1955
  • Geology
  • The Journal of Geology
Extensive chert gravels underlying the Smithland and higher erosion surfaces of the uppermost portion of the Mississippi embayment are considered remnants of three coalescing alluvial fans related to the ancestral Mississippi, Cumberland-Ohio, and Tennessee rivers. The shape and topographic form of the largest of these remnants, the Smithland surface of western Kentucky, best illustrates an alluvial-fan origin. The ancestral Tennessee and Mississippi alluvial fans have contrasts in direction of… 

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