Electron Spin Resonance–A Relative Dating Technique for Quaternary Sediments Near Warrnambool, Victoria

Dados Bibliográficos

ID8384342
AutoresA Goede (University of Tasmania, autor correspondente)
Ano1989
Volume27
Fascículo1
Páginas14-30
Data de publicação1989-04-01
Peer ReviewedSim
Open AccessSim
TipoARTICLE
PeriódicoAustralian Geographical Studies (JOURNAL)
Identificadores do periódicoISSN: 0004-9190 • E-ISSN: 1467-8470
EditoraWiley (PUBLISHER • GB)
DOI10.1111/j.1467-8470.1989.tb00589.x
OpenAlexW2001396561
IdiomaEN
Citações recebidas1
Referências citadas16

An assessment is made of the application of electron spin resonance (ESR) analysis of aragonitic molluscs for chronostratigraphic studies of Late Quaternary marine and estuarine sediments in western Victoria. Evaluation of the gamma equivalent dose (ED) provides a measure of the amount of natural radiation a mollusc has received since its death. In the absence of significant uranium enrichment the ED values of samples collected from similar sedimentary environments provide a reliable measure of relative age The use of 95% confidence limits of ED values enables the discrimination of distinct age groups of molluscs The age groups are referred to here as ED zones. One coastal marine species, the gastropod Turbo (Subninella) undulatus shows a time dependent change in sensitivity to gamma radiation that can also be used to discriminate between ED zones ESR analysis can be used in combination with amino acid racemization studies to correlate Quaternary coastal deposits in southern Australia

Absolute dating · Estuary · Quaternary · Sedimentary rock · Archaeology and ancient environmental studies · Geology · Geology and Paleoclimatology Research · Isotope Analysis in Ecology · Oceanography · Paleontology