Geschie

Geschie is a term used in glaciology and geology to refer to a rock fragment that has been transported by a glacier and deposited in a location far from its origin. These erratics, as they are also known, can range in size from small pebbles to massive boulders, and their presence in a landscape can provide valuable clues about past glacial activity. Glaciers act as powerful erosional agents, picking up and carrying along vast quantities of rock and debris as they move. When a glacier melts and retreats, the material it has transported is left behind, often in distinct landforms such as moraines.

The composition and type of rock found in a geschie can help geologists determine the source area of the glacier. By identifying distinctive rock types or unique mineral assemblages, scientists can trace the path the ice took and reconstruct the extent of past ice sheets. This information is crucial for understanding paleoclimates and the history of Earth's geological processes. The study of geschie is therefore an important component of glacial geology and contributes to our knowledge of landscape formation and the movement of materials over long geological timescales.