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Interestingly, both quartz and quartzite lose their accumulated energy whenever they are exposed to sunlight.

When you measure the amount of energy that is present within individual sand grains, it serves as a proxy measurement for the amount of time that the quartz grains have been buried since they were last exposed to sunlight.

When the sand grain becomes buried, by events such as floods carrying sediment across a site, or when the ground becomes covered by a midden, or prehistoric people create a sand mound, the grains become buried in the dark, and then begin to accumulate electrons.

Quartz and quartzite accumulate energy in them through time.

Moser This summer during the height of the University of South Florida/Ohio State University field school at Crystal River Archaeological State Park, I had the opportunity to speak with Dr.

Jack Rink about a new technique that he using to determine the age of the Crystal River archaeological site. Rink is a professor and researcher at Mc Master University, Mc Master Institute of Applied Radiation Sciences. After working on projects in Africa, Europe and Asia, Dr.

The rate of breakdown and energy release is relatively constant.

However, some environmental factors such as moisture can affect the accumulation of this energy.

The use of firm, trade, and brand names is for identification purposes only and does not constitute endorsement by the U. Information describing the principles of the dating technique, applications and types of dating, as well as more technical information for prospective customers can be found at this site. Welcome to the USGS Luminescence Dating Laboratory Site.



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