Maps and Cross sections of the Cambrian and Lower Ordovician in Ohio de Shearrow, George G - 1987

Columbus, Ohio: Ohio Geological Society, 1987. Soft Cover. Fine. Manila envelope encasing materials is somewhat soiled and chipped, but the interior contents are near-pristine. Published by the Ohio Department of Natural Resources, the 31-page introduction is accompanied by Plate 1, "Isoachous Map of the Eau Claire to Precambrian," Plate 2, "Isopachous Map of the Glenwood Erosional to Eau Claire," Plate 3, "Isopachous Map of the Praire du Chien Group," Plate 4, "Cross Section A-A," Plate 5, "Cross Section B-B, Datum: Top of the Glenwood Erosional Zone," Plate 6, "Structural Contour Map on the Precambrian Surface," Plate 7, "Structural Contour Map on the Top of the Eau Claire Formation," Plate 8, "Structural Contour Map on the Top of the Glenwood Erosional Zone," tcover, bound in printed wraps. Light shelf-wear, some fading to the cover, some spotting to the fore-edge. Additional postage may be required for oversize or especially heavy volumes, and for sets.