Present and past geocryogenic processes in Mexico

Klaus Heine

Permafrost and Periglacial Processes, 1994, vol. 5, issue 1, 1-12

Abstract: Periglacial processes and landforms are described from the Cordillera Neovolcánica of central Mexico. Inactive rock glaciers are related to different late‐glacial and Holocene phases of permafrost conditions. Active discontinuous permafrost occurs above c. 4600 m ASL and appears to be from the Little Ice Age. The lower limit of late‐glacial rock glaciers is situated 500 and 600 m lower than during the Little Ice Age. Les processus et les formes périglaciaires qui existent dans la Cordillère Neovolcanica du Centre du Mexique sont décrits. Des glaciers rocheux inactifs sont mis en relation avec différentes phases pendant lesquelles a existé un pergélisol au cours du Tardiglaciaire et de l'Holocène. Un pergélisol discontinu existe de nos jours au‐dessus de 4.600 m d'altitude; il est apparu pendant le petit ǎge glaciaire. La limite inférieure des glaciers rocheux tardiglaciaires est 500 à 600 m plus basse que celle des glaciers rocheux du petit àe glaciaire.

Date: 1994
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Persistent link: https://EconPapers.repec.org/RePEc:wly:perpro:v:5:y:1994:i:1:p:1-12

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