Coal Deposits of Iowa (Classic Reprint)

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Excerpt from Coal Deposits of IowaGeological Subdivisions of the Coal Measures chapter v.-lithqlogy of the Coal Measures General Considerations Lower Coal Measures Shalts Sandstones Calcareous Bed: Coals Upper Coal Measures Shales Limestones Arenaceous Materials Coal chapter VI. - Stratigraphy of the Coal Measures Introductory Remarks General Sections Form of the Coal Basin Lower Coal Measures Description of a Detailed Section in Central Iowa Vgriability of Strata. Unconformities in the Lower Coal Measures Thickness of Lower Coal Measures Summary Upper Coal Measures Typical Section Deformations Thickness of Upper Coal Measure.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.