Ultra-Small Carbon Samples and the Dating of Sediments

Dados Bibliográficos

ID9243227
AutoresJ S Vogel, Madeleine Briskin, D E Nelson (0000-0002-5676-4451), J R Southon
Ano1989
Volume31
Fascículo03
Páginas601-609
Data de publicação1989-01-01
Peer ReviewedSim
Open AccessNão
TipoARTICLE
PeriódicoRadiocarbon (JOURNAL)
Identificadores do periódicoISSN: 0033-8222 • E-ISSN: 1945-5755
EditoraCambridge University Press (CUP) (PUBLISHER)
DOI10.1017/s0033822200012194
OpenAlexW2500805013
IdiomaEN
Citações recebidas7
Referências citadas3

Radiocarbon dates from sediment core samples are usually obtained on the whole organic carbon portion in order to use as little of the valuable sediment as possible. Such measurements may not result in an accurate chronology of the sediment because the material may include carbon from different reservoirs at the time of deposition. The development of AMS techniques for dating ultra-small (20–500 μ g) carbon samples permits dating various components of cored sediments. We give examples of physical and chemical fractions of sediments which illustrate the large differences in ages obtainable from materials at the same sediment depth. The dating of all or several of these fractions demands more complex interpretations than just the derivation of a sedimentation rate from whole organic carbon dates

Absolute dating · Accelerator mass spectrometry · Carbon fibers · Chronology · Geochemistry · Mineralogy · Radiocarbon dating · Sediment · Sedimentation · Total organic carbon · Chemistry · Geology and Paleoclimatology Research · Isotope Analysis in Ecology · Materials Science · Paleontology and Stratigraphy of Fossils · Environmental Chemistry · Geology · Paleontology