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Environmental changes of the stadial/interstadial type during the Late Saalian (MIS-6) – Multi-proxy record at the Wola Starogrodzka site, central Poland
Palaeogeography, Palaeoclimatology, Palaeoecology ( IF 3 ) Pub Date : 2021-04-23 , DOI: 10.1016/j.palaeo.2021.110420
Mirosława Kupryjanowicz , Magdalena Fiłoc , Danuta Drzymulska , Anneli Poska , Magdalena Suchora , Marcin Żarski , Przemysław Mroczek

Marine, lacustrine and terrestrial records from many sites located in various regions of the world suggest that the climate amelioration at the end of MIS-6 (Late Saalian) was interrupted by the short-termed cooling just prior to the MIS-6/MIS-5e boundary (Saalian/Eemian). This climatic event might be similar to the transition between interstadial conditions of the Allerød and stadial conditions of the Younger Dryas at the end of the Last Glacial (MIS-2). On the other hand, the results of quite numerous palaeobotanical studies show no stadial-interstadial oscillations below the Saalian/Eemian boundary, but reflect the gradual improvement of climate and increasing density of vegetation at that time. In western and central Europe, environment changes at the end of the Late Saalian are poorly recognized. Therefore, each new record illustrating this part of the Late Pleistocene is extremely important. We examined two profiles at the Wola Starogrodzka site, central Poland, by high-resolution analyses of pollen, Cladocera, plant macroscopic remains, mineral grain size and distribution, and organic matter content. The studied sequences represent the closing phase of the Late Saalian (in Poland called the Warta Stage of Odranian), and the early to middle part of the Eemian Interglacial. Change of the stadial-interstadial-stadial type at the end of the Late Saalian was registered both in aquatic and terrestrial environment. The recorded interstadial was correlated with Zeifen interstadial, while the following stadial – with the Kattegat stadial. Quantitative palaeoclimate reconstruction based on pollen data (modern analogue technique) showed the change in mean annual temperature by ca. 3 °C at that time.



中文翻译:

萨利晚期(MIS-6)期间恒星/间界类型的环境变化–波兰中部Wola Starogrodzka工地的多代理记录

来自世界各地的许多站点的海洋,湖相和陆地记录表明,MIS-6(萨利安晚期)末期的气候改善被MIS-6 / MIS-之前的短期降温中断了。 5e边界(萨利/埃米尔)。这种气候事件可能类似于Allerød的陆际条件与末代冰河末期(MIS-2)的Younger Dryas的稳态条件之间的过渡。另一方面,相当数量的古植物学研究的结果表明,在萨利/埃米尔边界以下没有地层间振荡,但是反映了当时气候的逐步改善和植被密度的增加。在西欧和中欧,人们对晚期萨利安时代末期的环境变化知之甚少。所以,每条说明晚更新世这一部分的新记录都非常重要。我们通过对花粉,克拉多菌,植物宏观残留物,矿物粒度和分布以及有机质含量的高分辨率分析,对波兰中部Wola Starogrodzka站点的两个剖面进行了分析。所研究的序列代表了晚期萨利期(在波兰称为“奥德兰时期的瓦尔塔期”)的结束阶段,以及艾米期间冰期的早期至中部。在水生和陆地环境中都记录了晚萨利期末期的陆间-陆间-陆架类型的变化。所记录的星际与Zeifen星际相关,而随后的星际–与Kattegat星际相关。基于花粉数据的定量古气候重建(现代模拟技术)显示,年平均温度的变化约为。当时的温度为3°C。

更新日期:2021-04-29
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