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地理科学  2002 

地貌学与第四纪研究的新手段——陆地宇生核素研究

, PP. 587-591

Keywords: 暴露岩面,宇生核素,形成速率,26Al和10Be

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Abstract:

暴露岩石表层中的宇生核素的浓度,是产生速率、衰变常数及侵蚀速率的函数。根据该原理,在宇生核素形成速率为已知的条件下,建立宇生核素浓度与时间及侵蚀速率的函数关系,根据该模式可对岩面的暴露时间及侵蚀速率进行计算,这使得该测年技术在地貌学与第四纪研究中有着极大的运用前景。在众多的宇生核素中,取自于石英的26Al和10Be是目前该领域中运用最广泛、最成熟的宇生核素。

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