Middle Eocene Foraminifera From the Piney Point Formation of the Virginia and Maryland Coastal Plain ...

• Main Author: Jones, Megan S.
• Format: Text
• Language: unknown
• Published: Old Dominion University 1990
• Subjects: Planktonic foraminifera
• Online Access: https://dx.doi.org/10.25777/6m0w-x505; https://digitalcommons.odu.edu/oeas_etds/236/

This study examines the foraminiferal fauna, both benthic and planktonic, of the outcropping (45 samples) and subsurface (31 samples) middle Eocene Piney Point Formation in Virginia and Maryland. The primary objective of this study is to further refine the depositional history of the Salisbury Embayment which is represented by the middle Eocene Piney Point Formation. Ninety-six species of benthic and planktonic foraminifera were identified in this study. Of these, several are characteristic of the middle Eocene: Asterigerina texana, Hanzawaia danvillensis, Ceratobulimina exima, Cibicides westi, Chiloguembelitria columbiana, C. stavensis, Testacarinata inconspicua and Pseudohastigerina wilcoxensislmicra. While these were relatively abundant, diagnostic middle Eocene species such as Truncorotaloides topilensis, T. rohri and Acarinina bulbrooki were present, but quite rare. Based upon these characteristic middle Eocene foraminifera, the Piney Point Formation can be correlated with other middle Eocene Atlantic ...