NUCLEAR TECHNIQUES, Volume. 47, Issue 1, 010002(2024)
Effect of related parameters on exposure age and erosion rate obtained via rock surface luminescence dating
Rock surface luminescence dating has developed rapidly in the past decade. It has been widely used to obtain exposure ages and erosion rates of various rocks in archaeology, geology, and geography, such as stone artifacts, glacier bedrock, gravel, and bedrock fault surfaces. However, these is little study on the effect of parameters related to this method, such as attenuation coefficient μ, decay rate of the trapped charge at the rock surface
This study aims to quantitatively investigate the impact of relevant parameters on exposure age and erosion rate, and examine the limits of exposure age and erosion rate obtained by the method under different parameters.
First, parameters that might have an impact on age and erosion rate results were determined through theoretical analyses. Then, the relationship among the parameters, depth of half saturation and exposure age (erosion rate) were studied using numerical simulations. The impact of each relevant parameter on exposure age and erosion rate was observed for varied parameter values. Finally, the dating limit was determined from the inflection point in the simulated profiles.
The smaller μ value is, the greater the rate of change in the depth of half saturation would be when increasing the same exposure time. However, the rate of change in the depth of half saturation remains constant for different
Among the parameters,
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Ming LUO, Zhijun GONG, Fusheng GUO, Huaming PENG. Effect of related parameters on exposure age and erosion rate obtained via rock surface luminescence dating[J]. NUCLEAR TECHNIQUES, 2024, 47(1): 010002
Category: Research Articles
Received: Aug. 21, 2023
Accepted: --
Published Online: Mar. 7, 2024
The Author Email: GONG Zhijun (龚志军)