Petrographic and lead isotope analyses to assess regional variability in Rio Grande Glaze wares from New Mexico (original) (raw)

Journal of Archaeological Science: Reports, 2023

Abstract

The broad spatial distribution and long period of production of Rio Grande Glaze Ware vessels hides considerable material diversity within the typological grouping as a ware. This has long made archaeometric techniques attractive options for understanding variability within the Rio Grande Glaze Ware category. We present the results of new petrographic analysis of Rio Grande Glaze Ware pastes and new isotopic analysis of Rio Grande Glaze Ware glaze paint. The results of these new analyses complement extensive earlier work characterizing both Rio Grande Glaze Ware pastes and paint. Especially relevant is the identification of glaze paints made primarily with lead ores from the Hansonburg district or made by mixing Hansonburg ore with the more commonly used Cerrillos district ores. The predominant use of Cerrillos ore in the production of lead glaze paint identified in prior work is nuanced through the additional data presented here, which suggests a division in networks of lead ore and/or glaze paint procurement between a larger, northern network making use of Cerrillos ores, and a smaller, southern network relying on Hansonburg ores for glaze paint production.

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