Excerpt from Outline Introduction to the Mineral Resources of Tennessee Cenezoic Era - Quaternary System - Recent Series. Alluvium high-level gravels Pleisocene (columbia) Milan Loam Memphis Loess Sands (lafayette) Mes'ozoic Era - Tertiary System - Eocene Series. Lagrange formation Porter Creek formation Cretaceous System (upper) Ripley formation Selma. Clay Eutaw sand Paleozoic Era - Carboniferous System - Pennsylvanian Series Pottsville Group. (upper Pottsville, or Brushy Mountain Coal Bryson formation Hignite formation Catron formation Mingo formation Hance formation Anderson sandstone Scott shale Wartburg sandstone Briceville shale Lower Pottsville, or Lee Conglomerate Emory sandstone Tracy City Group Bon Air Conglomerate, or Sewanee Conglomerate Bon Air Group. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.