plural noun Geology.
Origin of coal measures
Examples from the Web for coal measures
Historical Examples of coal measures
Some geologists have called the coal-measures the medial formation.
Cœlacanthus elegans of the coal-measures is found in America also.A Guide to the Study of Fishes, Volume 1 (of 2)
David Starr Jordan
These are land species, and chiefly of genera common in the Coal-measures.The World Before the Deluge
He has thus all that he needs to explain how coal-measures were formed.Town Geology
Here we have the coal-sandstone and the slate clay, with slate, &c., alternating with the coal-measures.