@article {9837,
	title = {A Post-Glacial Record of 14C Reservoir Ages for the British Columbia Coast},
	journal = {Canadian Journal of Archaeology/Journal canadien d{\textquoteright}arch{\'e}ologie},
	volume = {27},
	year = {2003},
	pages = {095-111},
	abstract = {<p>Radiocarbon is significantly depleted in the surface waters of the subpolar North Pacific, including those of the Northwest Coast, due to strong upwelling of old\&$\#$39; subsurface water. As a result, North Pacific shell, fishbone, and other marine materials have radiocarbon ages 600-1,000 years older than those of coeval terrestrial material. It is usually assumed that this reservoir age has remained constant over time, except inasmuch as it is affected by known variations in atmospheric 14C levels. This assumption is critical, but few opportunities have arisen to test it. In this study, we have measured the differences between radiocarbon ages of wood and shell pairs collected from natural beach deposits and archaeological midden sites in British Columbia to develop a record of reservoir ages extending back 10,700 radiocarbon years (ca. 12,900 calendar years). The results show that reservoir ages have been relatively constant over this period.\&$\#$39;</p>},
	author = {John Southon and Daryl Fedje}
}
