Figure 7
From: RETRACTED ARTICLE: The Hopewell airburst event, 1699–1567 years ago (252–383 CE)
The location, stratigraphy, and sample sites (white circles) of the Milford Earthwork site, Clermont County, Ohio. Kenneth Barnett Tankersley used Microsoft PowerPoint for Mac Version 16.41 (www.microsoft.com) to create this figure. The GIS map was produced in ESRI ArcGIS 10.3.1 software (www.esri.com).
