Marine reservoir corrections : St. Helena, South Atlantic Ocean

Title: Marine reservoir corrections : St. Helena, South Atlantic Ocean
Creator: Lewis, Colin A
Creator: Reimer, P J
Creator: Reimer, R W
Date Issued: 2008
Date: 2008
Type: Article
Identifier: vital:6701
Identifier: http://hdl.handle.net/10962/d1006737
Description: We present the first marine reservoir age and ∆R determination for the island of St. Helena using marine mollusk radiocarbon dates obtained from an historical context of known age. This represents the first marine reservoir age and ∆R determination in the southern Atlantic Ocean within thousands of kilometers of the island. The depletion of 14C in the shells indicates a rather larger reservoir age for that portion of the surface Atlantic than models indicate. The implication is that upwelling old water along the Namibian coast is transported for a considerable distance, although it is likely to be variable on a decadal timescale. An artilleryman’s button, together with other artifacts found in a midden, demonstrate association of the mollusk shells with a narrow historic period of AD 1815–1835.
Format: 7 pages
Format: pdf
Language: English
Relation: Lewis, C.A. and Reimer, P.J. and Reimer, R.W. (2008) Marine reservoir corrections: St. Helena, South Atlantic Ocean. Radiocarbon, 50 (2). pp. 275-280.

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Lewis, Colin A (Prof)

RU Department of Geography

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