′ center is one of well-known paramagnetic defects in crystalline quartz.
This center has a unique feature; its intensity increases on heating.
In this study, the chronology of a well-preserved sand dune located in Panjin Forest Park (PJ) in the Lower Liao Plain (LLP) is investigated using quartz optically stimulated luminescence (OSL) and K-feldspar postinfrared (IR) infrared stimulated luminescence (IRSL) (p IRIR) dating.
For the p IRIR measurements, the combination of preheating at 180°C and p IRIR stimulation at 150°C (p IRIR.
Based on further information of climate and temperature change after the Little Ice Age (LIA) and human activity in northeastern China, we conclude that the PJ sand dune accumulation was very likely impacted by the immigrants and land reclamation at the end of Qing dynasty.
The fading corrected IR ages are consistent with quartz ages for two sandy soil samples but overestimate those for six sand samples.
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