SOME OBSERVATIONS ON HOLOCENE CHANGES IN PERIGLACIAL ACTIVITY AT LONGRIDGE, MARION-ISLAND

Extensive evidence of Holocene periglacial activity exists at Long Rid ge, Marion Island, in the maritime sub-Antarctic. This includes blockf ields, stone-banked lobes, solifluction terraces, Azorella terraces an d various forms of patterned ground. This paper examines the spatial d istribution and variation of relict, as well as present-dnp periglacia l forms and activity Evidence is presented for considerably colder con ditions on Marion Island earlier in the Holocene. In addition, evidenc e is advanced for a ;steeper periglacial gradient than at present.