Rock glaciers in central Patagonia

Heather Selley, Stephan Harrison, Neil Glasser, Olaf Wündrich, Daniel Colson, Alun Hubbard

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Abstract

Active rock glaciers are ice and debris-cored landforms common in cold arid mountains. They have not been widely described in the Patagonian Andes of southern South America and here we provide the first rock glacier inventory for the Jeinimeni region to the east of the contemporary North Patagonian Icefield. Detailed analysis of available satellite imagery and fieldwork demonstrates the presence of 89 rock glaciers across the study region, covering a total of 14.18 km2. Elevation is the primary control on rock glacier distribution with 89% existing between 1600 and 1900 m.a.s.l. Aspect also plays a significant role on rock glacier formation with 80% preferentially developed on southerly slopes receiving lower solar insolation.
Original languageEnglish
Pages (from-to)1-15
Number of pages15
JournalGeografiska Annaler: Series A, Physical Geography
Volume101
Issue number1
Early online date22 Oct 2018
DOIs
Publication statusPublished - 02 Jan 2019

Keywords

  • Patagonia
  • Rock glacier
  • inventory
  • permafrost
  • solar radiation

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