This paper demonstrates how optically stimulated luminescence (OSL) and photo-transferred thermoluminescence (PTTL) can be used to date young (0–2000 year-old) flood deposits on the bank of a major river in the Southern Tablelands of southeastern Australia. Quartz grains extracted from these deposits do not show a detectable dose-dependent sensitivity change following optical stimulation. This allows a recently proposed regeneration-based protocol (SARA) to be used to estimate the equivalent dose ( D e ) acquired since burial. For the oldest sample, a dependence of D e on pre-heat temperature is removed by heating to at least 180 °C for 10 s before stimulation. Values of D e are reported for six samples using both OSL and PTTL. Values ranged between 0.4 and 6.5 Gy, with overall uncertainties usually <7%; the values of D e obtained using OSL and PTTL are in agreement. Dose rates are calculated from detailed analyses of environmental radionuclide concentrations, and the resulting luminescence dates range from 100 ± 13 to 1920 ± 130 years before present; the uncertainties include systematic effects. For two layers where there is age control by 14 C dates, the luminescence dates are in good agreement. Unfortunately, the limitations of the 14 C data preclude firm conclusions about the size of any effective age-residual at deposition for the luminescence samples, although this is likely to be <50–100 years. It is concluded that luminescence dating offers a considerable improvement over other techniques, including 14 C, for recently transported fluvial sediments.
Geochimica et Cosmochimica Acta – Elsevier
Published: Feb 1, 1996
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera