This compilation of analytical data for phosphate-rich sediments concerns the Upper Cenozoic geology of the Onslow Bay on the North Carolina continental margin as indicated in Figures 1 and 2. This study area is the Carolina phosphogenic province as defined by Riggs (1979, 1984) and represents the focus of an extended research program entitled Genesis of the Upper Cenozoic Depositional Sequences of the Mid-Atlantic Continental Margin with Stanley R. Riggs, Albert C. Hine, Scott W. Snyder, Stephen W. Snyder, and William J. Showers as co-principal investigators of various portions of the research. This extended research program began in 1979 and is still in progress, although at a slower pace than during the first decade. The data compiled in the present volume represents some of the analytical products of this research program on the Carolina phosphogenic province. By Stanley R. Riggs, Dorothea v.d.P. Ames, Robert A. Wyrick, Katrina L. Lueck, Eric R. Powers, and Ronald A. Crowson. 235 pages, 1993.