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冰川冻土  1996 

北塬剖面碳酸钙记录的末次间冰期气候不稳定性

, PP. 119-124

Keywords: 北塬,末次间冰期,冰芯深也,气候波动

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Abstract:

最近格陵兰冰芯深孔GRIP揭示末次间冰期早期(MIS-5e)气候急剧不稳定,但邻近的另一冰芯GISP2却表明这一时期气候是稳定的。其结论对将来气候的预测是至关重要的。临夏北塬高分辨率黄土-古土壤连续CaCO3记录表明,气候在MIS-5e期间曾发生过3次显著的温暖时期和两次明显严寒的急剧大幅度波动,与格陵兰GRIP孔气候记录一致。证明MIS-5e气候不稳定性是存在的,并且其影响非早先认为的局地事件,至少是北半球的一种普遍现象。

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