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冰芯、深海沉积物、黄土、石笋、湖相沉积物等这些古气候载体所记录的古气候 (温度 )变化广泛具有 1 0 0 ka、41 ka、2 0 ka以及更短的千年周期性。 2 .45Ma BP到 1 .6Ma BP,低频率的 1 66ka到 333ka周期存在 ;1 .8Ma BP到 0 .8Ma BP,41 ka周期占主导。而从 0 .8Ma BP至今 ,1 0 0 ka周期逐渐增强并占主导地位。全球性的 1 0 0 ka周期的驱动机制可用地球轨道面倾斜理论或用宇宙尘在地球上的积累速率模式加以解释 ,而区域性的千年周期在北大西洋可用深海盐水的循环模式解释。新的资料和各种气候周期模式表明 ,长尺度的气候周期应是地外天体相互作用引发 ,短尺度高频率气候振荡应是地球内部各系统间相互制约影响的结果。
Paleoclimate (temperature) changes recorded in paleoclimate carriers such as ice cores, deep-sea sediments, loess, stalagmites, and lacustrine sediments have broadly the 1000-ka, 41 ka, 20 ka and shorter millennium cycles. From 2.45Ma BP to 1.6Ma BP, low frequencies occur between 66ka and 333ka cycles; from 1.8Ma BP to 0.8Ma BP, 41 ka cycles dominate. From 0 .8Ma BP up to now, the 1 0 0 ka cycle has been gradually strengthened and dominated. The driving mechanism of the global 1 0 ka period can be explained by the orbital plane tilt theory or by the pattern of the accumulation rate of cosmic dust on the earth, while the regional millennium cycle can be explained by the circulation pattern of deep-sea brine available in the North Atlantic Ocean. New data and various climate cycle models indicate that long-term climatic cycles should be triggered by the interaction of extraterrestrial celestial bodies and that short-range and high-frequency climatic oscillations should be the result of mutual constraints and constraints in systems within the Earth.