Relict sorted patterned ground in Lesotho

Paul Sumner

Permafrost and Periglacial Processes, 2004, vol. 15, issue 1, 89-93

Abstract: Relict sorted patterned ground is described from an upland interfluve on the Lesotho‐South Africa border at an elevation of 3280 m a.s.l. The site comprises 2–4° slope angles. Frost penetration through the regolith is inferred to have been to 1 m depth during pattern formation. Sorting is thought to have resulted from deep seasonal freezing during the depressed temperatures of the Late‐Pleistocene Last Glacial Maximum (∼18 000 years B.P.). No direct evidence for permafrost is documented. Copyright © 2004 John Wiley & Sons, Ltd.

Date: 2004
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Persistent link: https://EconPapers.repec.org/RePEc:wly:perpro:v:15:y:2004:i:1:p:89-93

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