Frostspaltenmakropolygone im westlichen Zentral—Island, ihre klimatischen und edaphischen Bedingungen

Ekkehard Schunke
Frost-crack macropolygons are, like pingos and palsas, regarded as a geomorphological indicator of an extremely hard continental frost climate. Under this aspect the frost-crack macropolygons (15—35 m in diameter) in the vicinity of the Hofs- and Langjökull in western central Iceland are studied. The investigation comprises an analysis of the forms, their distribution, and their sedimentological composition. The frost-crack macropolygons in central Iceland are subrecent forms. As proved in many cases by tephrochronological data they...