CHARCOAL AND BOTANIC IDENTIFICATION AND AMS RADIOCARBON AGE DETERMINATION OF SAMPLES FROM SITE RI 1898, WASHINGTON COUNTY, RHODE ISLAND

Site 1898 consists of a series of small stone tool production areas located approximately 50 meters off the shore of Quonochontaug Pond in Westerly, Washington County, Rhode Island. Six charcoal samples collected at 5 cm intervals from 5 to 35 cmbs were submitted for identification and subsequent AMS radiocarbon age determination. Previous radiocarbon analysis of this site yielded calibrated age range of ~900–1400 BP for the top 25 cmbs and a range of ~4000–7500 BP for the depth of 25–35 cmbs (E. Pierre Morenon, personal communication March 1, 2016). Six additional samples collected from a different area within the site were submitted for identification and radiocarbon analysis.1898号遗址由多处小型石器制作作业区组成，该遗址坐落于美国罗德岛州华盛顿县韦斯特利市的科诺孔托格池塘沿岸离岸约50米处。研究人员从地层埋深5至35厘米的层位中，以5厘米为间隔采集了6份炭样，提交用于炭种鉴定及后续的加速器质谱（Accelerator Mass Spectrometry，AMS）碳十四测年。此前针对该遗址开展的碳十四分析结果显示，表层25厘米埋深范围内的地层校正年代范围约为距今900—1400年，而25至35厘米埋深的地层校正年代范围约为距今4000—7500年（E. Pierre Morenon，2016年3月1日私人通信）。此外，研究人员从该遗址内另一区域采集了6份补充样品，同样提交进行炭种鉴定与碳十四分析。