Production origins and matrix constituents of spiculate pottery in Florida, USA: Defining ubiquitous St Johns ware by LA-ICP-MS and XRD
2019
Abstract Fine-grained “chalky”
potterycontaining microscopic
sponge spiculesis commonly recovered from archaeological sites throughout peninsular Florida, but many questions remain about its composition and origins. It is identified by different names, but most are associated with the St. Johns Type series. While it has been commonly assumed to originate in the St. Johns River drainage for which it is named, the prevalence of
potterywith these characteristics in other locations has presented the likelihood of independent production in multiple places. In this study, we conducted LA-ICP-MS and XRD analysis of
spiculate
potteryfrom three Woodland period (ca. 1000 BCE to 1000 CE) sites, along with comparative clay samples, in order to characterize the raw materials and determine the geographic scope of production. Our results support the theory that this ware was independently produced across peninsular Florida. We further evaluate the hypothesis that this
potterywas made with common wetland
muck, through consideration of the material properties of
muckconstituents. This project emphasizes the importance of an ecosystem framework for understanding the long history of
spiculate
potteryproduction and its geographic spread within Florida.
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