POLLEN ANALYSIS OF A PIECE OF GROUNDSTONE FROM CA-SNI-351, SAN NICOLAS ISLAND, CALIFORNIA

A single piece of groundstone was recovered from CA-SNI-351 and examined for its pollen and starch content. Occupation at this site occurred between 600 and 6800 BP, according to reports of calibrated radiocarbon dates (Martz, personal communication, July 29, 1993) . The groundstone was examined to obtain information concerning food processing activities. Since San Nicolas Island was occupied by hunters and gatherers at the time of European contact, it is likely they represented descendants of prehistoric populations that used tools including this piece of groundstone.本次研究从CA-SNI-351遗址出土1件磨制石器（groundstone），并对其所含花粉与淀粉粒进行了检测分析。经校准放射性碳测年结果显示，该遗址的人类活动年代介于距今600至6800年（Before Present，BP）之间（Martz，私人通信，1993年7月29日）。本次对该磨制石器的检测，旨在获取与食物加工活动相关的研究信息。欧洲殖民接触时期，圣尼古拉斯岛（San Nicolas Island）的居民为狩猎采集者，据此推测他们应是曾使用包括该磨制石器在内的各类工具的史前人群的后裔。