rubble-ice

We worked through the belt of rubble-ice at last, and came up with the heavy old floes and rafters of ice-blocks, larger than very large flag-stones and fully as thick as they were long and wide; the fissures between them full of the drifted snow.

A Negro Explorer at the North Pole Matthew A. Henson 1888

We were still in the heavy rubble-ice and had to continuously hew our way with pickaxes to make a path for the sledges.

A Negro Explorer at the North Pole Matthew A. Henson 1888

European manufacture for work in rubble-ice, and to push on with the

A Man's Woman Frank Norris 1886