Pollen and δ13C(org) analysis of a lacustrine sediment profile from Skrzynka in Poland

Lacustrine sediment core from the Skrzynka site located in the SE Poland have been studied using pollen analysis to determine a detailed record of climatic oscillations during the Masovian Interglacial (MIS 11c). To achieve this, enhanced resolution sampling (every 2 cm) was applied. The palynological record of the Skrzynka II core contains nearly the entire MIS 11c succession, excluding only the earliest protocratic stage. Both major oscillations known from other European localities, i.e., the Older Holsteinian Oscillation (OHO) and the Younger Holsteinian Oscillation (YHO), are present in the Skrzynka II record. Moreover, another two significant regressive episodes were described in the mesocratic and telocratic stage of Masovian Interglacial, respectively. Enhanced sampling resolution also enabled the description of several other minor, local-scale climatic events or disturbances. Palynological analysis was additionally supported by a δ13C(org) study of the same deposits. Results of the isotope analysis corresponds well with pollen data only in the lower part of the succession. Since the early Carpinus/Abies phase δ13C(org) data is inconsistent with the pollen record, as a result of an unknown disturbance.

在波兰东南部Skrzynka遗址出土的湖泊沉积岩芯，已通过孢粉分析技术，对马斯维安间冰期（MIS 11c）期间的气候变化进行了详细记录。为此，实施了高分辨率采样（每隔2厘米一次）。Skrzynka II岩芯的孢粉记录几乎涵盖了整个MIS 11c地层序列，仅未包括最早期原型阶段。Skrzynka II记录中不仅包含了其他欧洲地区已知的主要振荡现象，即更老型的霍尔斯蒂尼亚振荡（OHO）和较新型的霍尔斯蒂尼亚振荡（YHO），而且还在马斯维安间冰期的中层和中层阶段分别描述了另外两个显著的退潮期。提高采样分辨率还使得能够描述若干其他较小的、局部尺度的气候事件或扰动。孢粉分析还得到了同一沉积物δ13C(org)研究的支持。同位素分析的结果仅在序列的较低部分与孢粉数据相吻合。由于早期山毛榉/冷杉阶段δ13C(org)数据与孢粉记录不一致，这可能是由于未知干扰所致。