moraines

till

glacial erratics

perched blocks

glacial stratigraphy

Drumhollistan - thick sequences of till left by the last ice sheet moving over the north coast

Glacial Deposition

Two main groups of landforms are recognised that result from deposition by ice:

  • glacial forms, deposited directly from ice
  • glacifluvial forms, deposited by meltwater

Examples from both groups of landforms are represented in Caithness. These landforms may be also be classified in terms of their position relative to the former glacier, as subglacial, englacial, supraglacial, marginal and proglacial landforms.