blue ice

noun

, Geology.

1. the oldest and densest ice in a glacier, distinguished by a pale-blue color.

Example Sentences

When the rock-studded blue ice proved unskiable, she wondered whether she would try again.

From The Daily Beast

The sledges ran through a sea of crevassed, blue ice, over ridges and past open chasms.

From Project Gutenberg

Off again, we "plugged" away until midnight when we were much surprised to find the usual snow surface merging into blue ice.

From Project Gutenberg

Down the blue ice-slopes in slippery finnesko, and Aladdin's Cave hove in sight.

From Project Gutenberg

Two of these small pools have vertical sides of blue ice like entrances to marvellous fairy grottos.

From Project Gutenberg

Though the surface was dirty and blackened, yet down in the cracks and crevasses the wonderful blue ice appeared.

From Project Gutenberg