Black-on-Orange Ceramic Production in the Aztec Empire's Heartland

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Abstract
Compositional and stylistic analyses of decorated ceramics have provided information about the regional organization of economic systems in the Aztec empire’s core zone, the Basin of Mexico. Late Aztec Black-on-orange ceramics (A. D. 1350–1520) are found at nearly all archaeological sites in the Basin of Mexico, but prior to this study their sources were not verified. This study has investigated whether Black-on-orange ceramics were produced in one or many areas in order to define in greater detail dependent communities’ economic relations with the Aztec empire’s capital. To identify production areas, paste compositions of 85 Late Aztec Black-on-orange ceramic samples were compared using neutron-activation analysis. The analysis distinguished three different production areas in the eastern and southern parts of the Basin of Mexico, indicating that Late Aztec Black-on-orange ceramics represent a style adopted by regional manufacturing centers, and are not products of a single center. Because a number of decorative motifs are exclusive to particular paste groups, the sources of some Black-on-orange vessels can now be identified visually.