FORAMINIFERS IN THE STE. GENEVIEVE LIMESTONE, GREENDALE SYNCLINE, VIRGINIA

The Mississippian Ste. Genevieve Limestone in the Greendale syncline, Washington County, Virginia, is a thick accumulation of carbonate and mixed carbonate-siliciclastic sediment deposited in a trough along the incipient Appalachain orogen. Foraminifers are observed in all sediment types with more robust forms predominant in the coarser grainstones at the base of the section. Foraminifers in the mixed-carbonate siliciclastic sediments are smaller and of lower diversity. The majority of the foraminifers observed are of the endothyrid affinity.