Liivajääkides

Liivajääkides refers to sand deposits that are found in glacial environments. These can occur in various forms, including sand layers within glacial ice, sand accumulated at the base of glaciers, or sand deposited by meltwater streams originating from glaciers. The presence of sand within or around glaciers is a result of several processes. Glacial ice can entrain sand-sized particles from the underlying bedrock as it moves. This material becomes incorporated into the ice mass and can be transported long distances.

When glaciers melt, the sand that was trapped within the ice is released. This can lead to the formation of stratified sand deposits in areas that were previously covered by ice. Meltwater streams, which are common at the terminus of glaciers, also play a significant role in distributing and depositing sand. These streams carry sediment eroded from the glacier and its surroundings, sorting it by size and depositing sand in outwash plains and eskers.

Studying liivajääkides can provide valuable information about past glacial activity, the erosional processes of glaciers, and the paleoclimate conditions. The composition and distribution of these sand deposits can help reconstruct the history of ice sheet movement and the extent of glaciation. They are important features in glacial landscapes and contribute to the geological record of areas that have experienced glaciation.