R.E. Weems, folded 29 x 42-inch color 1:24,000-scale geologic map, 1986. Geologic map with surficial deposits of the Ashland 7.5-minute quadrangle in Hanover and Caroline counties with cross-sections. Brief discussion of stratigraphy, structure, and economic history for coal, shell and glauconitic marls, gravel and clay materials. Units depicted range from sediments (Cretaceous to recent), sedimentary rocks in the Triassic Taylorsville basin and the Petersburg Granite. Locations of pits for glauconite, marl and coal and rock repository samples and reference localities are plotted.
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