A series of strata containing coal occupying a particular area; the tract of country occupied by these strata.
1813. Bakewell, Introd. Geol. (1815), 177. The series of strata existing in one situation is denominated a coal field.
1846. M’Culloch, Acc. Brit. Empire (1854), I. 599. The coal-fields of Durham and Northumberland are adequate to furnish the present annual supply for more than 1340 years.
