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使用感量校正多测片再生(SMAR)法对新疆昆仑山北坡的12个黄土样品的细颗粒混合矿物和细颗粒石英进行了等效剂量(D_e)的测量。测试结果显示,该地区黄土的[post-IR]OSL和OSL信号强度相对于黄土高原的样品偏低,初步认为与物源不同及粉尘堆积和堆积后经受的风化作用微弱有关。细颗粒混合矿物的IRSL等效剂量值基本上小于其细颗粒石英OSL的,反映出长石存在明显的异常衰减现象;[post-IR]OSL信号主要来自于长石,用于测年需谨慎;细颗粒石英OSL更适合用于对该地区黄土的测年。
Equivalent dose (D_e) measurements were performed on fine-grained mixed minerals and fine-grained quartz in 12 loess samples from the northern slope of the Kunlun Mountains in Xinjiang using the SMAR method. The test results show that the [post-IR] OSL and OSL signal intensities of loess in this area are low relative to those of the Loess Plateau, and are initially believed to be related to the different provenance and weak weathering of the dust accumulation and accumulation. The IRSL equivalent dose of the fine-grained mixed mineral is basically smaller than that of fine-grained quartz OSL, which indicates the obvious abnormal attenuation of feldspar. [Post-IR] The OSL signal mainly comes from feldspar, ; Fine grain quartz OSL is more suitable for dating the loess in the area.