Cirques have growth spurts during deglacial and interglacial periods: Evidence from ¹⁰Be and ²⁶Al nuclide inventories in the central and eastern Pyrenees

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• 关键词：Cirque ; Denudation rate ; Cosmogenic nuclide dating ; Buzzsaw ; Pyrenees
• 刊名：Geomorphology
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：278
• 期：Complete
• 页码：60-77
• 全文大小：3600 K
• 卷排序：278

文摘

Low 10Be denudation rates document low Würmian glacial denudation in the Pyrenees Cirques grew faster during temperate cirque glaciation than under icefield conditions Subglacial denudation peaked during the Younger Dryas and Holocene glacial advances Supraglacial ridgetop lowering during the Würm and Holocene was 10–25 mm/ka Pyrenean topography has not reached a buzzsaw equilibrium state