- 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
- 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.
- Hits: 1273
- Visitors: 1493
- Downloads: 234
Thumbnail | File | Description | Size | Format | |||
---|---|---|---|---|---|---|---|
View Details Download | SOURCEPDF | 3 MB | Adobe Acrobat PDF | View Details Download |