Figure AF11. Representative lithofacies from the Medford corehole. A. Paleosol from the Potomac Formation (688–690 ft; 209.7–210.3 m). B. Paleosol from the Potomac Formation (702–704 ft; 214.0–214.6 m). C. Oxbow lake sediments from the Potomac Formation (706–708 ft; 215.2

Figure AF11. Representative lithofacies from the Medford corehole. A. Paleosol from the Potomac Formation (688–690 ft; 209.7–210.3 m). B. Paleosol from the Potomac Formation (702–704 ft; 214.0–214.6 m). C. Oxbow lake sediments from the Potomac Formation (706–708 ft; 215.2–215.8 m).