青藏高原隆升对宇生核素年代的影响  

The Impact of the Rise of Qinghai-Tibet Plateau on the Age of Natural Nucleation

作　　者：徐孝彬[1] 朱捷[1] 周其楼[1] 杨亦青[1] 

机构地区：[1]江苏教育学院地理系,江苏南京210013

出　　处：《江苏教育学院学报（自然科学版）》2008年第4期30-33,共4页Journal of Jiangsu Institute of Education(Social Science)

摘　　要：青藏高原隆升速率通过对宇生核素形成速率的影响,对地貌面宇生核素年代的求算带来不确定性.根据青藏高原隆升的不同观点,求算出对应的年代,再结合全球冷暧期变化,及冰川地貌发育的客观规律性,得出青藏高原现在的平均海拔高度是第四纪以来才形成的,并且60万年来高原抬升了约1000 m,14万年来高原抬升了约400 m,1.86万年来则抬升了约56 m.The velocity of the rise of Qinghai-Tibet Plateau has an effect on the rate of the natural nucleation formation, which brings difficulties to the calculating of the age of the earth natural nucleation. Based on different opinions on the rise of Qinghai-Tibet Plateau, the correspondent age was calculated. Combined with the change of the global warming period, and the objective rules of the formation of the glacier physiognomy, it is found that the average altitude of the Qinghai-Tibet Plateau was formed in the Quaternary period, and it has raised about 1,000m in the latest 600,000 years, 400m in the latest 140, 000 years, and 56m in the latest 18,600 years.

关 键 词：青藏高原 隆升速率 侵蚀速率 地面年代 

分 类 号：P542.1[天文地球—构造地质学] P68[天文地球—地质学]