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对华北地区不同类型的第四沉积物中31个样品进行了同一套细颗粒测样长石波长330~480 nm的红外释光(IRSL)信号与主要是石英(340 ± 25) nm波长的绿光释光(GLSL)信号的测年对比试验, 拟探讨评价沉积物细颗粒光释光测年可靠性的一种可能途径. 结果表明, 约80%的样品IRSL测得的DE值和年龄与GLSL测得的结果在1~2个标准差范围内一致. 风积黄土样品的这种一致性尤其明显, 而水沉积物样品则差些. 鉴于细颗粒长石的IRSL与石英的GLSL对剂量响应不同, 具有不同的热稳定性和光晒退行为, 从这两种光释光信号得到的DE值各自独立, 其一致性有可能作为沉积物样品OSL测年值可靠性的一种自检指标.
Thirty-one samples of the fourth sediment of different types in North China were subjected to the same set of fine-grained samples. The infrared light-emitting (IRSL) signal with a wavelength of 330-480 nm and the green (340 ± 25) nm wavelength of mainly quartz (GLSL) signals, a possible way to evaluate the reliability of light-emitting photoluminescence of sediment particles is proposed. The results show that about 80% The results of GLSL are consistent within the range of 1 ~ 2 standard deviations.The consistency of wind-rich loess samples is particularly obvious, while the water sediment samples are worse.While the IRSL of fine-grained feldspar and the GLSL of quartz Different response, different thermal stability and sunburn behavior, the DE values obtained from these two light-emitting signals are independent, and its consistency may be used as a self-check index for the reliability of the OSL dating data of sediment samples .