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在末次间冰期 末次冰期转换时期全球范围内普遍出现了一次气候回返事件 ,这次事件与YoungerDryas事件呈“镜象”式对应关系 ,是全球气候系统从间冰期向冰期转换过程中的暖性反弹 .在北京斋堂黄土记录中 ,这一回返事件有突出表现 ,且对应于一条弱发育的古土壤条带 ,因而具有古气候学和地层学的双重意义 ,表明这一事件的发生与冬夏季风变化和大气粉尘、水汽波动有成因上的关联 .对于这一事件的深入研究 ,将为揭示YoungerDryas事件及其他气候突变事件发生机制提供新的视角
A global climate return event occurred during the last interglacial transition in the period of glacial transition. The event was mirrored with the Younger Dryas event and is a warming phenomenon in the transition of the global climate system from the inter-glacial period to the glacial period The rebound was recorded in Zhaitang’s loess record in Beijing, and this return event has a prominent manifestation and corresponds to a weakly developed paleosol strip, which has the dual meanings of palaeoclimate and stratigraphy, indicating the occurrence of this event Which is genetically related to the changes in winter and summer monsoon and atmospheric dust and water vapor.The further study on this event will provide a new perspective to reveal the mechanism of YoungerDryas event and other climate abrupt events