The Black Creek-Peedee formational contact (Upper Cretaceous) in the Cape Fear River region of North Carolina

Geology near a hazardous waste landfill at the headwaters of Lake Marion, Sumter County, South Carolina

“…Palynomorph assemblages from the lower and middle units of the Black Creek Group in the MAN-1A core are generally assignable to pollen zones CA-3 through CA-5A of Wolfe (1976). Unpublished palynomorph zonations from the Peedee River area (Christopher, written communication, 1983) indicate that these strata are correlative to the Exogyra Ponderosa Zone of Sohl and Christopher (1983) and Sohl and Owens (in press) and are therefore middle to late Campanian in age.…”

“…The lower and middle units of the Black Creek Group described in this report are equivalent in age to the Tar Heel and Bladen Formations of Sohl and Owens (in press), although an exact one-to-one stratigraphic correlation is not possible at this time. The upper unit of the Black Creek Group in this report is directly equivalent to the Donoho Creek Formation of Sohl and Owens (in press) and the Black Creek strata immediately beneath the Peedee Formation as discussed in Sohl and Christopher (1983).…”

“…In recent years, parallel lithostratigraphic and biostratigraphic investigations of the Black Creek outcrop areas by the U.S. Geological Survey has shown that the section can be divided into several chronolithostratigraphic units (Christopher and Sohl, 1983). Owens (1988) incorporated this information into a reconnaissance mapping study and found that three separate formations could be delineated regionally in North Carolina.…”

“…Unpublished palynomorph zonations from the Peedee River area (Christopher, written communication, 1983) indicate that these strata are correlative to the Exogyra Cancellata Zone of Sohl and Christopher (1983) and Sohl and Owens (in press) and are therefore early Maestrichtian in age. Ostracode samples from the RIM-1A core (Figs 2 and 5) at depths of 300 ft and 305 ft and the MAN-1A core (Figs.…”

“…14). Apparently some confusion existed concerning the base of the Peedee Formation in North Carolina (Sohl and Christopher, 1983) due to eastward facies changes. Recent work by Sohl and Owens (in press) has established that the Peedee strata at Burch's Ferry (true Peedee Formation) is only the upper part (middle Maestrichtian) of the unit called Peedee in North Carolina by Sohl and Christopher (1983).…”