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中国沙漠黄土边界带是地质时期东亚季风气候变化的敏感地带 ,其风成沉积物记录了东亚季风气候的变迁。对处于沙漠黄土边界带的吉林省太平川剖面进行了钾长石红外释光及石英绿光释光测年的比较研究 ,详细阐述了粗颗粒技术样品的前处理方法及钾长石和石英单矿物的分离过程 ,对于预热而导致的热转移信号对光释光测年中等效剂量的影响作了探讨 ,并且对不同的测量温度对红外释光测年等效剂量的影响也作了研究
The loess boundary zone in China is a sensitive zone of the climate change of the East Asian monsoon during the geological period. Its aeolian sediments record the change of the East Asian monsoon climate. A comparative study of infrared dating of K-feldspar and quartz green light-emitting dating of the Taipingchuan section of Jilin Province in the loess boundary zone of the desert was carried out. The pre-treatment methods of coarse-grained technical samples and the methods of single-mineralization of K- The effect of pre-heating heat transfer signal on the equivalent dose of photoluminescence dating was discussed, and the effect of different measuring temperature on the equivalent dose of infrared photoluminescence dating was also studied