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RETRACTED ARTICLE: The Hopewell airburst event, 1699–1567 years ago (252–383 CE)
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 epicenter....
| Autores principales: | , , , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Nature Publishing Group UK
2022
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8807851/ https://www.ncbi.nlm.nih.gov/pubmed/35105925 http://dx.doi.org/10.1038/s41598-022-05758-y |