- a glacial deposit consisting chiefly of unstratified clay with embedded boulders.
Origin of boulder clay
Examples from the Web for boulder clay
Historical Examples of boulder clay
Might they not belong merely to the talus of this bank of boulder-clay?
But I have since seen in abundance shells of the boulder-clay.
Miller was one of the pioneers in the study of the Boulder-Clay.Hugh Miller
William Keith Leask
The latter it must be supposed was then removed, to be replaced by the boulder-clay.Prehistoric Man
W. L. H. Duckworth
I suppose your Boulder-clay in the high grounds will give you no bother.James Geikie
Marion I. Newbigin
- an unstratified glacial deposit consisting of fine clay, boulders, and pebblesSee also till 4