Isotope sediment dating


17-Aug-2017 08:54

There is no radiochemical processing required with this technique.The samples are simply packed into petri dishes or vials, left to equilibrate for three weeks and then counted on a High Purity Germanium (HP-Ge) gamma spectrometry system.The samples are processed to prepare Pb activities.This technique is more sensitive than gamma spectrometry and is suitable when a small quantity of sample is available for analysis.Cosmogenic nuclide dating uses the interactions between cosmic rays and nuclides in glacially transported boulders or glacially eroded bedrock to provide age estimates for rock at the Earth’s surface.

We also thank Peter Appleby from the University of Liverpool for dating the sediment cores. Applications are in the areas of Late Quaternary geochronology, sedimentology and biochronology.Please discuss your proposal with the appropriate ANSTO Contact Scientist before submitting your proposal as they will assist you in making the correct capability selection.However the method is destructive and other radionuclides such as Pb dating can be undertaken by gamma spectrometry technique.



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