Figure 16
From: RETRACTED ARTICLE: The Hopewell airburst event, 1699–1567 years ago (252–383 CE)
Quantity of Fe and Si-rich microspherules by depth (m): (A) Turner earthworks and village, Ohio; (B) Moundview village and mound, Ohio; (C) Miami Fort hilltop earthworks, Ohio; (D) Jennison-Guard village site, Indiana, (E) Beech Tree village, Ohio; (F) Milford earthworks, Ohio; (G) Indian Fort Mountain earthworks, Kentucky; (H) Foster’s Crossing earthwork, Ohio, (I) Krasnosky earthworks, Ohio; (J) Junction earthworks, Ohio; (K) Marietta earthworks and mounds, Ohio. Kenneth Barnett Tankersley used Microsoft PowerPoint for Mac Version 16.41 (www.microsoft.com) to create this figure.
