RETRACTED ARTICLE: The Hopewell airburst event, 1699–1567 years ago (252–383 CE)
Abstract Meteorites, Fe and Si-rich microspherules, positive Ir and Pt anomalies, and burned charcoal-rich Hopewell habitation surfaces demonstrate that a cosmic airburst event occurred over the Ohio River valley during the late Holocene. A comet-shaped earthwork was constructed near the airburst ep...
Main Authors: | , , , , , , |
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Format: | Article |
Language: | English |
Published: |
Nature Portfolio
2022-02-01
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Series: | Scientific Reports |
Online Access: | https://doi.org/10.1038/s41598-022-05758-y |