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• coal measures
  coal measures

  plural noun

  coal-bearing strata.
• Coal Measures
  Coal Measures

  plural noun

  a series of coal-bearing rocks formed in the upper Carboniferous period; the uppermost series of the Carboniferous system

coal measures

American  

plural noun

Geology.

1. coal-bearing strata.

2. (initial capital letters) in Europe, a portion of the Carboniferous System, characterized by widespread coal deposits.

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Coal Measures British  

plural noun

1. a series of coal-bearing rocks formed in the upper Carboniferous period; the uppermost series of the Carboniferous system

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Etymology

Origin of coal measures

First recorded in 1655–65

Example Sentences

It is generally largest in lignites, which may sometimes contain 30% or even more, while in the Water in coal. coals of the coal measures it does not usually exceed from 5 to 10%.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" by Various

There would probably never be found another unbroken period of a duration equal to that of the coal measures.

From The Galaxy Vol. 23, No. 1 by Various

From the position that the coal measures occupy, being entirely under the Secondary and Tertiary formations, it will be observed that they are very old.

From Nature's Miracles, Volume 1 Familiar Talks on Science—World-Building and Life. Earth, Air and Water. by Gray, Elisha

The existence of another strata, still lower and still better, is presumed, as the alluvial formation, or coal measures, has not yet been passed by boring.

From The History of Peru by Beebe, Henry S.

We have, also, in our coal measures, found trees of species long extinct, thirty to forty feet high, with roots attached as they grew in situ.

From The Bible: what it is by Bradlaugh, Charles