Irrigation Settlements (Other Keyword)

DOCUMENT Citation Only James Vint.

A sample of 140 radiocarbon dates from 14 Early Agricultural sites was used to model the chronology of settlements in the Tucson Basin using OxCal v.4.2.3; one site in northern Sonora was also included in this analysis. The sites range in age from about 2100 BC to 700 BC, spanning two phases of the Late Archaic/Early Agricultural period: the "Silverbell Interval" (ca. 2100-1200 BC) and the San Pedro Phase (ca. 1200-800 BC). Most dates are AMS assays of maize kernels, cupules, or cobs, other...