Glacial deposits are materials left behind by glaciers as they move and melt. These deposits can include rocks, soil, and sediment that have been transported over long distances. When glaciers advance, they pick up and carry various materials, which are then released when the ice melts, creating features like moraines and drumlins. There are two main types of glacial deposits: till and outwash. Till is unsorted material deposited directly by the glacier, while outwash consists of sorted sediments carried away by meltwater. Both types provide valuable information about past glacial activity and the Earth's climate history.