Measurements of the Marine Reservoir Effect on Radiocarbon Ages in the Eastern Bering Sea
ABSTRACT. The marine reservoir effect is known to skew radiocarbon dating (marine samples appear “older ” than terrestrial samples of equivalent age), but the magnitude of this effect is not the same in all locations. Carbon-14 age determinations from 23 paired samples of terrestrial and marine orig...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.486.1985 2023-05-15T14:19:39+02:00 Measurements of the Marine Reservoir Effect on Radiocarbon Ages in the Eastern Bering Sea Don E. Dumond Dennis G. Griffin The Pennsylvania State University CiteSeerX Archives 2001 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.486.1985 http://pubs.aina.ucalgary.ca/arctic/Arctic55-1-77.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.486.1985 http://pubs.aina.ucalgary.ca/arctic/Arctic55-1-77.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pubs.aina.ucalgary.ca/arctic/Arctic55-1-77.pdf Key words Alaska Bering Sea reservoir effect radiocarbon differential ages archaeology shell marine mammal text 2001 ftciteseerx 2016-01-08T08:12:14Z ABSTRACT. The marine reservoir effect is known to skew radiocarbon dating (marine samples appear “older ” than terrestrial samples of equivalent age), but the magnitude of this effect is not the same in all locations. Carbon-14 age determinations from 23 paired samples of terrestrial and marine origin are presented for five areas around the northern and eastern Bering Sea. It appears statistically suitable to average the age differences for three pairs, weighted inversely by variance. Differences from within each of 14 pairs of wood charcoal vs. sea mammal residue (from St. Lawrence Island, Cape Prince of Wales, Nunivak Island, Alaska Peninsula, and Unalaska Island) yield a weighted mean of 737 ± 20 years. Somewhat more variant differences from within each of five additional pairs of wood charcoal vs. sea mammal residue (St. Lawrence Island, Unalaska Island) provide a lower weighted mean of 460 ± 41 years. Differences from within each of four pairs of wood charcoal vs. marine shell (Nunivak Island) produce a weighted mean of 459 ± 32 years. Variations in these apparent reservoir effects presumably result largely from the interplay of differential ocean water upwelling and customary faunal feeding areas, although possible effects of other species characteristics cannot be ruled out. Dating of marine samples from the Bering Sea should thus either proceed with the expectation that age determinations may not be accurate within several centuries, or be approached through experimental measurement of reservoir effect among restricted faunal species in limited areas. Overall, the effect throughout the eastern Bering Sea appears to range from about 450 to 750 years. Text Arctic Bering Sea Nunivak Nunivak Island St Lawrence Island Alaska Unknown Bering Sea Cape Prince of Wales ENVELOPE(-71.499,-71.499,61.617,61.617) Lawrence Island ENVELOPE(-103.718,-103.718,56.967,56.967) |
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Open Polar |
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op_collection_id |
ftciteseerx |
language |
English |
topic |
Key words Alaska Bering Sea reservoir effect radiocarbon differential ages archaeology shell marine mammal |
spellingShingle |
Key words Alaska Bering Sea reservoir effect radiocarbon differential ages archaeology shell marine mammal Don E. Dumond Dennis G. Griffin Measurements of the Marine Reservoir Effect on Radiocarbon Ages in the Eastern Bering Sea |
topic_facet |
Key words Alaska Bering Sea reservoir effect radiocarbon differential ages archaeology shell marine mammal |
description |
ABSTRACT. The marine reservoir effect is known to skew radiocarbon dating (marine samples appear “older ” than terrestrial samples of equivalent age), but the magnitude of this effect is not the same in all locations. Carbon-14 age determinations from 23 paired samples of terrestrial and marine origin are presented for five areas around the northern and eastern Bering Sea. It appears statistically suitable to average the age differences for three pairs, weighted inversely by variance. Differences from within each of 14 pairs of wood charcoal vs. sea mammal residue (from St. Lawrence Island, Cape Prince of Wales, Nunivak Island, Alaska Peninsula, and Unalaska Island) yield a weighted mean of 737 ± 20 years. Somewhat more variant differences from within each of five additional pairs of wood charcoal vs. sea mammal residue (St. Lawrence Island, Unalaska Island) provide a lower weighted mean of 460 ± 41 years. Differences from within each of four pairs of wood charcoal vs. marine shell (Nunivak Island) produce a weighted mean of 459 ± 32 years. Variations in these apparent reservoir effects presumably result largely from the interplay of differential ocean water upwelling and customary faunal feeding areas, although possible effects of other species characteristics cannot be ruled out. Dating of marine samples from the Bering Sea should thus either proceed with the expectation that age determinations may not be accurate within several centuries, or be approached through experimental measurement of reservoir effect among restricted faunal species in limited areas. Overall, the effect throughout the eastern Bering Sea appears to range from about 450 to 750 years. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Don E. Dumond Dennis G. Griffin |
author_facet |
Don E. Dumond Dennis G. Griffin |
author_sort |
Don E. Dumond |
title |
Measurements of the Marine Reservoir Effect on Radiocarbon Ages in the Eastern Bering Sea |
title_short |
Measurements of the Marine Reservoir Effect on Radiocarbon Ages in the Eastern Bering Sea |
title_full |
Measurements of the Marine Reservoir Effect on Radiocarbon Ages in the Eastern Bering Sea |
title_fullStr |
Measurements of the Marine Reservoir Effect on Radiocarbon Ages in the Eastern Bering Sea |
title_full_unstemmed |
Measurements of the Marine Reservoir Effect on Radiocarbon Ages in the Eastern Bering Sea |
title_sort |
measurements of the marine reservoir effect on radiocarbon ages in the eastern bering sea |
publishDate |
2001 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.486.1985 http://pubs.aina.ucalgary.ca/arctic/Arctic55-1-77.pdf |
long_lat |
ENVELOPE(-71.499,-71.499,61.617,61.617) ENVELOPE(-103.718,-103.718,56.967,56.967) |
geographic |
Bering Sea Cape Prince of Wales Lawrence Island |
geographic_facet |
Bering Sea Cape Prince of Wales Lawrence Island |
genre |
Arctic Bering Sea Nunivak Nunivak Island St Lawrence Island Alaska |
genre_facet |
Arctic Bering Sea Nunivak Nunivak Island St Lawrence Island Alaska |
op_source |
http://pubs.aina.ucalgary.ca/arctic/Arctic55-1-77.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.486.1985 http://pubs.aina.ucalgary.ca/arctic/Arctic55-1-77.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766291430389579776 |