Figure F6. Summary stratigraphic section for the Raritan (upper Cenomanian–Turonian) and Potomac (partim, lower Cenomanian) formations in the Medford borehole. Potomac Unit III sequence is defined in Sugarman et al. (2004). Pollen zonation of Brenner (1963, 1967) and Doyle and Robbins (1977). Red lines = sequence boundaries. B = barren, ND = nondiagnostic.

Figure F6. Summary stratigraphic section for the Raritan (upper Cenomanian–Turonian) and Potomac (partim, lower Cenomanian) formations in the Medford borehole. Potomac Unit III sequence is defined in Sugarman et al. (2004). Pollen zonation of Brenner (1963, 1967) and Doyle and Robbins (1977). Red lines = sequence boundaries. B = barren, ND = nondiagnostic.