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HOPEWELL BLADELETS: A BAYESIAN RADIOCARBON ANALYSIS

Published online by Cambridge University Press:  14 January 2018

G. Logan Miller*
Affiliation:
Department of Sociology and Anthropology, Campus Box 4660, Illinois State University, Normal, IL 61790, USA (glmill1@illinoisstate.edu)

Abstract

Hopewell bladelets may be the most common diagnostic artifact of the Hopewell Interaction Sphere. As such, they are often recognized as a Middle Woodland “index fossil” and a key materialized indication of Hopewell ceremonialism. However, few formal analyses of their occurrence across space and time exist. Drawing on published reports, as well as an extensive review of the unpublished gray literature, I present a Bayesian analysis of radiocarbon-dated, bladelet-bearing features from across Ohio. The Bayesian model provides insight into previously unrecognized temporal variation in this element of Hopewell material culture. Results indicate that bladelets are present from around the BC/AD switch to nearly AD 500 in certain portions of the state. Analysis by major drainages indicates that bladelets occur earliest in southern and central Ohio before subsequently spreading north to the Lake Erie region. Understanding the spatial and temporal variation in artifact classes such as Hopewell bladelets is essential to explaining prehistoric cultural processes.

Las navajillas Hopewell pueden considerarse el artefacto de diagnóstico más común de la esfera de interacción Hopewell. Como tal, a menudo se les reconoce como “fósil índice” del Silvícola medio y un indicador material clave del ceremonialismo Hopewell. Sin embargo, existen pocos análisis formales de su ocurrencia a través del espacio y el tiempo. Con base en informes publicados y en una extensa revisión de la literatura gris inédita, se presenta un análisis bayesiano de rasgos contenientes navajillas y fechados por radiocarbono a lo largo del estado de Ohio. El modelo bayesiano revela una variación temporal no anteriormente reconocida en este elemento de la cultura material Hopewell. Los resultados indican que las navajillas estuvieron presentes en ciertas partes del estado entre el primer y quinto siglo dC. Tomando en cuenta su distribución alrededor de los drenajes principales, el análisis revela que las navajillas ocurren primero en Ohio meridional y central y luego se difunden hacia la región del Lago Erie en el norte. Un entendimiento preciso de la variación espacial y temporal de clases de artefactos como las navajillas Hopewell es esencial para explicar los procesos culturales prehistóricos.

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Type
Articles
Copyright
Copyright © 2018 by the Society for American Archaeology 

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