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Reflection of global late glacial and Holocene paleoclimate oscillations in the palynological record from bottom sediments of Tavatui Lake (Middle Urals)

机译:塔瓦图伊湖(乌拉尔中部)底部沉积物在孢粉学记录中的全球晚冰川和全新世古气候振荡的反映

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摘要

The palynological analysis of the reliably dated core section of bottom sediments from Tavatui Lake revealed consistency between the chronology and succession of Late Pleistocene and Early Pliocene events (GI-a/b, CS-1, GH-11.2) in the Middle Urals and the North Atlantic region. It is established that the Holocene thermal maximum (5.3-8.0 cal. ka ago) in the Middle Urals was characterized by high temperatures and humidity. The initial stage of the Subboreal cooling was reffered to the interval of 4.5-5.3 cal. ka ago. The data obtained provided grounds for the conclusion that the palynological record in the Tavatui Lake section reflects in detail global and regional climate oscillations, which allows it to be used as a Holocene and late glacial reference section, as well as for predicting the behavior of the natural system of the Middle Urals in response to future climate change.
机译:塔瓦吐湖底部沉积物可靠年代的岩心剖面的花粉学分析显示,中乌拉尔和乌拉圭盆地晚更新世和上新世事件(GI-a / b,CS-1,GH-11.2)的时间和顺序一致。北大西洋地区。可以确定的是,中乌拉尔的全新世最高温度(5.3-8.0 cal。ka。)具有高温高湿的特征。 Subboreal冷却的初始阶段恢复到4.5-5.3 cal的间隔。嘉前。所获得的数据为得出这样的结论提供了依据:塔瓦图伊湖段的古生物学记录详细反映了全球和区域性的气候震荡,从而使其可以用作全新世和晚冰川参考段,并预测其活动。应对未来气候变化的中乌拉尔自然系统。

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  • 来源
    《Doklady Earth Sciences》 |2016年第2期|553-556|共4页
  • 作者单位

    Russian Acad Sci, Inst Mineral, Ural Branch, Ul Guskova 26, Miass 456301, Russia;

    Russian Acad Sci, Ilmen State Preserve, Ural Branch, Miass 456317, Russia;

    Russian Acad Sci, Inst Mineral, Ural Branch, Ul Guskova 26, Miass 456301, Russia;

    Chelyabinsk State Pedag Univ, Pr Lenina 69, Chelyabinsk 454080, Russia;

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