The Pleistocene deposits capping fluvial terraces in the Bistrita valley (Eastern Carpathians, Romania) host a high density of Upper Palaeolithic (UP) settlements, rendering this area a type-region for Late Pleistocene cultural evolution in eastern Romania and beyond. Despite its archaeological significance, site formation, palaeoenvironmental contextualisation and chronostratigraphy are still insufficiently resolved to draw a consistent picture of UP cultural dynamics. In the frame of recent excavations at the sites Bistricioara-Lutărie I and III (BLI, BLIII), we aimed at establishing a comprehensive multi-method (TL on heated flints, OSL on sedimentary quartz, radiocarbon dating of charcoal) chronology of the pluristratified archaeological records contained in the loess-like sediments on the lower and middle terraces of the Bistrița river. Therefore, new chronometric data are reviewed in conjunction with OSL ages and radiocarbon dates of a precursor study (Trandafir et al., 2015).

Multi-emission TL ages of four heated flints, OSL sediment ages and radiocarbon dates are consistent within 2σ throughout the investigated archaeological profiles and allow a much more precise chronological framing of the identified lithostratigraphic units within the last glacial cycle. However, the silt-sized and sand-sized quartz fractions of a luminescence sample do not always produce identical results at 1σ. Numerical ages and field observations indicate that the geological record reaches back to Marine Isotope Stage 5 and is preserved on a lower terrace. Depending on their location, the investigated terrace cover beds represent genetically independent geomorphological units, and up to three palaeosols (cambisols) developed in the cover beds, of which at this stage of research only the youngest (PS1) can be traced unequivocally within all profiles. In archaeological terms, the new chronological framing confirms that the currently identified cultural layers belong to the Late Gravettian (28–25 ka BP), and to several Epigravettian stages (24–15 ka BP), leaving limited chronological space for the previously suspected Aurignacian presence at BLI and at other settlements nearby.

位于比斯特里塔河谷（罗马尼亚东部喀尔巴阡山脉）河床阶地的更新世沉积物蕴藏着高密度的旧石器时代（UP）定居点，使该地区成为罗马尼亚东部及以后地区晚更新世文化演化的典型区域。尽管具有考古学意义，但遗址的形成，古环境的环境化和年代地层学仍未得到足够的解决，无法得出统一的UP文化动态图景。在最近在Bistricioara-LutărieI和III（BLI，BLIII）地点发掘的框架中，我们的目标是建立多层次的综合多方法（加热TL石的TL，沉积石英的OSL，木炭的放射性碳定年）。 Bistrița河下部和中部阶地的黄土状沉积物中包含的考古记录。

在整个调查的考古学资料中，四个加热的火石的多发射TL年龄，OSL沉积年龄和放射性碳日期均在2σ内一致，并允许在最后一个冰川周期内对所识别的岩石地层学单位进行更精确的年代划分。但是，发光样品的粉粒大小和沙粒大小的石英级分并不总是在1σ时产生相同的结果。数字年龄和现场观测表明，地质记录可以追溯到海洋同位素阶段5，并保存在较低的阶地上。根据其位置，被调查的梯田覆盖层代表了遗传上独立的地貌单元，并且在覆盖层中发育了多达三个古土壤（坎比索），在现阶段的研究中，只有最小的（PS1）可以在所有配置文件中明确地找到。从考古学的角度来看，新的年代学框架证实了当前确定的文化层属于格拉维特晚期（28-25 ka BP）和几个Epigravettian阶段（24-15 ka BP），为先前怀疑的奥里尼亚克人留下了有限的时间空间在BLI和附近其他定居点的存在。