کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7441989 1483903 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sclerochronology of Busycon sinistrum: late prehistoric seasonality determination at St. Joseph Bay, Florida, USA
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Sclerochronology of Busycon sinistrum: late prehistoric seasonality determination at St. Joseph Bay, Florida, USA
چکیده انگلیسی
Recent archaeological investigations indicate that coastal Fort Walton cultures in the St. Joseph Bay region of northwest Florida emphasized marine and estuarine foraging. These late prehistoric, Mississippi-period (A.D. 1000-1500) peoples collected fish, shellfish, and other aquatic resources. At the Richardson's Hammock site (8Gu10), radiocarbon-dated to about A.D. 1300, large, predatory gastropods were a major subsistence component. This adaptation is in sharp contrast with that of contemporaneous inland Fort Walton societies, who relied on maize agriculture, and raises the question whether coastal groups were separate hunter-gatherer-fisher populations or migrated seasonally from inland farming villages. We perform stable oxygen and carbon isotope sclerochronology on lightning whelks (Busycon sinistrum) to determine the seasonality of Fort Walton foraging and to compare the environment of prehistoric St. Joseph Bay with that of the modern bay. Oxygen isotope profiles suggest that shellfish collecting was relegated primarily to the summer months, producing a scheduling conflict with the primary growing season for maize in northwest Florida. Thus, coastal and inland Fort Walton sites probably represent separate culture groups. The relationship between δ18Oshell and δ13Cshell indicates similar environmental and climatic conditions between prehistoric St. Joseph Bay and today. However, modern whelks are depleted in 13C compared to Fort Walton whelks, which reflects both twentieth century CO2 emissions and years of dredging and wastewater pollution entering the bay.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Archaeological Science - Volume 57, May 2015, Pages 98-108
نویسندگان
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