We explore marine reservoir effects (MREs) in seal bones from the northern Bering and Chukchi Seas regions. Ringed and bearded seals have served as dietary staples in human populations along the coasts of Arctic northeast Asia and North America for several millennia. Radiocarbon (14C) dates on seal bones and terrestrial materials (caribou, plants seeds, wood, and wood charcoal) were compared from archaeological sites in the Bering Strait region of northwestern Alaska to assess MREs in these sea mammals over time. We also compared these results to 14C dates on modern seal specimens collected in AD 1932 and 1946 from the Bering Sea region. Our paired archaeological samples were recovered from late Holocene archaeological features, including floors from dwellings and cache pits, that date between 1600 and 130 cal BP. 14C dates on seal bones from the northern Bering and Chukchi Seas show differences [R(t)] of 800 ± 140 years from to their terrestrial counterparts, and deviations of 404 ± 112 years (ΔR) from the marine calibration curve.

中文翻译：

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北白令海和楚科奇海、阿拉斯加西北部海豹（鱼科）骨骼的海洋储层效应

我们探索了白令海和楚科奇海北部地区海豹骨骼中的海洋储层效应 (MRE)。几千年来，环斑海豹和胡须海豹一直是北极东北亚和北美沿岸人口的主食。放射性碳 (14C) 从阿拉斯加西北部白令海峡地区的考古遗址比较海豹骨头和陆地材料（驯鹿、植物种子、木材和木炭）的日期，以评估这些海洋哺乳动物的 MRE。我们还将这些结果与14公元 1932 年和 1946 年从白令海地区采集的现代海豹标本的 C 日期。我们的配对考古样本是从全新世晚期考古特征中恢复的，包括住宅和储藏坑的地板，其日期在 1600 到 130 cal BP 之间。14白令海和楚科奇海北部海豹骨头上的 C 日期显示与陆地对应物的差异 [R(t)] 为 800 ± 140 年，与海洋校准曲线的偏差为 404 ± 112 年 (ΔR)。