Relating to or formed by the combined action of water and glacial ice, or deposited by glacial meltwater.
From Latin 'aqua' (water) combined with 'glacial' (from Latin 'glacies' meaning ice). This is a specialized geological term describing sediments and features created by glacier meltwater.
When glaciers melt, the massive rush of water carries rocks and sand that sort themselves perfectly by size as it flows—aqueoglacial deposits helped geologists understand past ice ages by reading the story written in gravel bars and silt layers like pages of Earth's history book.
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