Glaze and slip pigment analyses of Pueblo IV period ceramics from east-central Arizona using time of flight-laser ablation-inductively coupled plasma-mass spectrometry (TOF-LA-ICP-MS)

This paper presents the results of glaze-paint and slip analysis of 161 White Mountain Red Ware ceramic samples (AD 1275–1325) from east-central Arizona. Time of flight-laser ablation-inductively coupled plasma-mass spectrometry (TOF-LA-ICP-MS) analysis is used (1) to establish viability of the technique for measuring chemical compositions of glazes and slips, and (2) to establish a methodology for inferring this structured variability, specifically delineating the presence of specific pigment mixtures or “recipes” used by prehistoric potters in the Greater Southwest. These data bear on archaeological questions about craft production, exchange, technology, and social organization.     

Glaze-paints,technological knowledge,and ceramic specialization in the fourteenth-century Pueblo Southwest

The advent of glaze-painted ceramics by Ancestral Pueblo peoples in the US Southwest occurred during an important period of cultural change. In east-central Arizona, potters used glaze-paints to decorate a striking, representational-style pottery during the early fourteenth-century AD. We evaluate the possibility that these vessels were manufactured by emergent specialists who possessed crafting-knowledge that was not widely shared with others in their communities. Time of flight-laser ablation-inductively coupled plasma-mass spectrometry (TOF-LA-ICP-MS) was used to characterize the composition of a large sample of red ware sherds from sites in the Silver Creek area. This analytical approach precisely measures the chemical composition of paints, which can then be used to model ancient technological “recipes.” Our study highlights the complexities of craft production in small-scale societies and the utility of practice-based versus typological approaches to specialization.