Title: Sources of Obsidion at Pueblo Grande: an Energy Dispersive X-ray Fluorescence (EDXRF) Analysis
Abstract: www.escholarship.org/uc/item/3zt096j SOURCES OF OBSIDIAN AT PUEBLO GRANDE: AN ENERGY DISPERSIVE X-RAY FLUORESCENCE (EDXRF) ANALYSIS by M. Steven Shackley Lowie Museum of Anthropology University of California, Berkeley 22 October 1991 (revised 6.30.92) INTRODUCTION Insight into the procurement of obsidian during all periods of Hohokam occupation in Arizona is, at best, in a very preliminary form. The geochemical analysis here of 220 obsidian artifacts from Pueblo Grande is a great step toward the understanding of Hohokam obsidian procurement. This report is focused on the geochemistry of obsidian and patterns of obsidian procurement at the site locus proper, irrespective of temporal and spatial variability, addressed elsewhere. Based on a preliminary analysis of obsidian artifacts from some other Classic period Hohokam contexts I have argued that Northern Arizona obsidian was not a common feature in late Hohokam sites (Shackley 1988, 1989). This analysis indicates that this is not the case. This sample exhibited a substantial proportion (25. 9 % ) of obsidian from Government Mountain and Partridge Creek in north central Arizona. Indeed, the obsidian assemblage from Pueblo Grande is quite diverse, exhibiting glass from seven known and three unknown sources. One of the unknowns is probably derived from Superior, but the small size prohibited a confident assignment. The source provenience of the material does not conform to the Law of Monotonic Decrement and merits discussion (see Shackley
Publication Year: 1991
Publication Date: 1991-10-22
Language: en
Type: article
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