New ΔR Values for the Southwest Pacific Ocean

Radiocarbon - Tập 46 Số 2 - Trang 1005-1014 - 2004
Fiona Petchey, Matthew Phelan1, J. Peter White2
1Aboriginal Affairs Victoria, PO Box 515, East Melbourne, Victoria 3002, Australia
2School of Philosophical and Historical Inquiry, University of Sydney, New South Wales 2006, Australia

Tóm tắt

ΔR results of known-age shells from the Solomon and Coral Seas and the northwest coast of New Ireland are presented. The results are too few to be conclusive but indicate that ΔR in this region is variable. An average ΔR value of 370 ± 25 yr is recorded for a range of shell species from Kavieng Harbor, New Ireland, and is primarily attributed to weak equatorial upwelling of depleted 14C due to seasonal current reversals. In contrast, values from the Solomon and Coral Seas are lower (average ΔR = 45 ± 19 yr). Higher ΔR values for some shellfish from these 2 seas is attributed to ingestion of 14C-depleted sediment by deposit-feeding species.

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Radiocarbon

Tập 46 Số 2

1005-1014

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