Osl dating australia

This paper will discuss how some of these problems may have biased the original TL dates. (190) recognise the possibility that some of the samples at Jinmium may have been contaminated.

osl dating australia-64

Another indication of Jinmium’s antiquity is the scientifically-ascertained age (30,000 years) assigned to rock art in the site(Tacon et al.

1997), which was based upon dating bees-wax figures adhering to the walls of the rockshelter.

Jinmium’s TL was based on analysis of 28 aliquots for each sample removed from the ground; an aliquot comprised 2,900 quartz grains (Fullagar et al. However, there are problems involved with using TL to determine age for sediments in sandstone rockshelters. Monday viewpoint: Dating the past from 100,000 years to 10,000 years.

The laboratory absorbed, and replaced, the Optical and TL Dating Laboratory in the Physics Department at Simon Fraser University which closed due to the retirement of its director, Prof.

Timothy Owen (University of Leicester, United Kingdom)Recent debate over the initial occupation of the Jinmium rock shelter, in the Kimberley region in far northwestern Australia, has highlighted some of the challenges involved in using thermoluminescence (TL) to date sediments in sandstone rockshelters.

The original dating of the Jinmium site published by Fullagar, Price and Head (1996) suggested the possibility of initial site occupation over 100,000 years ago. G, Bird, M., Olley, J., Galbraith, R., Lawson, E., Laslett, G., Yoshida, H., Jones, R., Fullagar, R.

However, Spooner’s (1998) alternative interpretation of data from this site and Roberts et al.’s (1998) new ‘single-grain’ optically stimulated luminescence (OSL) dates suggest an initial occupation date of less than 10,000 years BP. Luminescence dating of sediments: new light on the human colonisation of Australia.

The Geography Department at UFV is the home of a luminescence dating laboratory, currently the only one of its kind in western Canada. Olav Lian, this NSERC-funded laboratory serves as a nexus for faculty, undergraduate, graduate, and post-doctoral research in Quaternary geology and geomorphology.

This research involves the collection of sediment samples in locations as diverse as Arctic Canada, BC's central coast, Australia, and Patagonia.

These samples are then dated, and the age information is used to help understand the nature of long term environmental change.

The laboratory welcomes visiting colleagues from other universities, and, from time to time, undertakes limited contract work.

Tags: , ,