submerged prehistoric (Other Keyword)
1-4 (4 Records)
Between 13,000 and 12,300 BP, sea levels in the Gulf of Mexico increased rapidly. For the next 2,300 years, however, sea levels both rose and fell by centimeters per year, producing significant shoreline movement observable within a human lifetime. Because of continental shelf’s topography, however, shorelines in different areas did not shift at the same rate. Areas with minimal movement would have seemed more stable and attractive for repeated occupations over generations. This paper models of...
Locating and identifying submerged prehistoric sites as part of CRM (2015)
Section 106 of the National Historic Preservation Act requires Federal agencies like the US Army Corps of Engineers to make a reasonable good faith effort to consider the effects of their undertakings on historic properties. The Jacksonville District of the Corps of Engineers has been conducting underwater cultural resource surveys since the 1970’s. While the potential for prehistoric sites has always been considered, technological advances have allowed us to improve our ability to evaluate...
Spring Surprise: The Lessons Learned and Unexpected Results of the Chassahowitzka Headsprings Archaeological Assessment and Monitoring Project (2015)
In 2013 SEARCH conducted underwater archaeological investigations and monitoring at the Chassahowitzka Headsprings restoration project in Citrus County, Florida. Although the initial underwater survey yielded a sparse artifact count, hundreds of artifacts were recovered during the monitoring of commercial diver's as they removed substantial amounts of algae, detritus, and cultural materials from the springhead with 6-inch induction dredges. Diagnostic and rare artifacts include a Suwannee...
State of the Art: Reconstructing paleolandscapes for maritime CRM projects (2018)
Advancements in sound underwater remote sensing have resulted in effective ways to study the ocean bottom, reconstruct paleolandscape settings, and find pre-contact archaeological sites. The inventory of submerged sites known to date ranges from 3 to 13 kya. These sites are located in, and theorized to exist from nearshore to mid-shelf settings, but the potential for pre-contact sites goes all the way out to the continental shelf break, a fact confirmed by recent findings of several pre-Clovis...