Potsdam, Pottdam Epoch. a aquot;Primal Seriesaquot; of Rogers, a Sandstones and Slates, 3000-4000 feet. Calciferoni Epoch. a aquot; Auroralaquot; Calcareous Sandstone, 250 feet. Trextox, Chaiy Epoch. a aquot;Auroralaquot; Magnesion Limestone, with some chertyanbsp;...
Title | : | Manual of Geology, Treating of the Principles of the Science |
Author | : | James Dwight Dana |
Publisher | : | - 1869 |
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