The loess–palaeosol sequence of Batajnica (Vojvodina region, Serbia) is considered as one of the most complete and thickest terrestrial palaeoclimate archives for the Middle and Late Pleistocene. In order to achieve a numerical chronology for this profile, four sets of ages were obtained on 18 individual samples. Equivalent doses were determined using the SAR protocol on fine (4–11 μm) and coarse (63–90 μm) quartz fractions, as well as on polymineral fine grains by using two elevated temperature infrared stimulation methods, pIRIR 290 and pIRIR 225. We show that the upper age limit of coarse quartz OSL and polymineral pIRIR 290 and pIRIR 225 techniques is restricted to the Last Glacial/Interglacial cycle due to the field saturation of the natural signals. Luminescence ages on coarse quartz, pIRIR 225 and pIRIR 290 polymineral fine grains are in general agreement. Fine quartz ages are systematically lower than the coarse quartz and pIRIR ages, the degree of underestimation increasing with age. Comparison between natural and laboratory dose response curves indicate the age range over which each protocol provides reliable ages. For fine and coarse quartz, the natural and laboratory dose response curves overlap up to ~150 and ~250 Gy, respectively, suggesting that the SAR protocol provides reliable ages up to c. 50 ka on fine quartz and c. 100 ka on coarse quartz. Using the pIRIR 225 and pIRIR 290 protocols, equivalent doses up to ~400 Gy can be determined, beyond which in the case of the former the natural dose response curve slightly overestimates the laboratory dose response curve. Our results suggest that the choice of the mineral and luminescence technique to be used for dating loess sediments should take into consideration the reported limited reliability.

中文翻译：

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在塞尔维亚 Batajnica 的中至晚更新世黄土上测试多矿物后红外 IRSL 和石英 SAR-OSL 协议

Batajnica（伏伊伏丁那地区，塞尔维亚）的黄土-古土壤层序被认为是中、晚更新世最完整、最厚的陆地古气候档案之一。为了获得该剖面的数字年表，在 18 个个体样本上获得了四组年龄。通过使用两种高温红外刺激方法 pIRIR 290 和 pIRIR 225，使用 SAR 协议对细 (4-11 μm) 和粗 (63-90 μm) 石英部分以及多矿物细颗粒确定等效剂量。我们表明由于自然信号的场饱和，粗石英 OSL 和多矿物 pIRIR 290 和 pIRIR 225 技术的年龄上限仅限于末次冰期/间冰期循环。粗石英上的发光年龄，pIRIR 225 和 pIRIR 290 多矿物细颗粒大体一致。细石英年龄系统地低于粗石英和 pIRIR 年龄，低估程度随着年龄而增加。自然和实验室剂量反应曲线之间的比较表明每个协议提供可靠年龄的年龄范围。对于细石英和粗石英，自然和实验室剂量反应曲线分别重叠至 ~150 和 ~250 Gy，表明 SAR 协议提供高达 c 的可靠年龄。50 ka 细石英和 c。100 ka 在粗石英上。使用 pIRIR 225 和 pIRIR 290 协议，可以确定高达 ~400 Gy 的等效剂量，在前者的情况下，超过这个剂量，自然剂量反应曲线略微高估了实验室剂量反应曲线。