USING GEOMORPHIC DATA TO MODEL PREHISTORIC ARCHAEOLOGICAL SITE OCCURRENCES ALONG BLACKWATER RIVER, SANTA ROSA COUNTY, FLORIDA
Matthew Alan Newton
University of West Florida
Master of Arts (MA), University of West Florida
2018
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Abstract
Geomorphic investigations were conducted during 2015-2017 at two locations within the Blackwater River-Bay Complex. The project aimed to gain an understanding of Paleoindian archaeological site occurrences in the study area, while placing them within the context of environmental change. The study employed a myriad of marine geophysical surveying techniques, diver investigations, and vibracore extractions from a tripod-mounted vessel. Vibracores were sampled for organic content before being analyzed using a Malvern Mastersizer 3000 particle sizer. Stratigraphic units were coupled with radiocarbon assays, which showed a strong correlation to data collected on prehistoric hurricane landfalls in the northern Gulf. Moreover, the radiocarbon assays relate to pronounced periods of prehistoric occupations along the Blackwater River-Bay complex during the Late Woodland and Mississippian periods. This is perhaps owing to a later development of the estuary system.