"Glacial ice" refers to the thick, solid ice that forms over long periods of time in areas such as polar regions or high mountains. It is created from compacted snow and can move like a slow-moving river or flow downhill. Full definition
What lessons can we learn from the past history of glacial ice melt and sea - level rise about what will happen in the next century as the climate warms? (giss.nasa.gov)
High levels of oxygen likely accumulated in the lake over millions of years as glacial ice melted, injecting trapped gases from air bubbles into its waters. (discovermagazine.com)
Currently covered by glacial ice, these lots should be available for development in the next ten to fifteen years. (dotearth.blogs.nytimes.com)