C14 dating ; Dating ; Lithology ; Loess ; Minnesota ; Palaeogeography ; Pedogenesis ; Quaternary ; United States ; Wisconsin
Accelerator mass spectrometer radiocarbon ages of the Roxana Silt (Loess) along the Upper Mississippi Valley of Wisconsin and Minnesota indicate that loess sedimentation of the Roxana Silt occurred between about 55,000 and 27,000 14C yr B.P