by W.F. Giannini and K.K. Hostettler, 8.5 x 11-inch soft-cover book, 160 pages, 57 figures, 66 tables, 8 appendices, 1994. Report of analyses on 840 carbonate-rock samples in a portion of Augusta, Bath, Highland and Rockingham counties. Analytical results include weight percent of calcium carbonate, magnesium carbonate, silica, iron oxide, aluminum oxide and sulfur. Seventy-five samples have semi-quantative trace element analyses for Ag*, As*, Au, B, Ba, Be, Bi*, Cd*, Co, Cr, Cu, Ga*, K, La, Li, Mo*, Na, Nb, Ni, P, Pb, Pd*, Pt*, Sb*, Se*, Sc, Sn, Sr, Ta*, Te*, Ti, V, W*, Y, Zn, Zr and Cl (* not detected). Reflectance values for 68 samples recorded. Sample locations plotted on photo-reduced 1:50,000-scale topographic maps.