kömür damarı

listen to the pronunciation of kömür damarı
Турецкий язык - Английский Язык
coal seam
A stratum of coal between strata of other rocks
Coal deposits occur in layers Each such layer is called a ''seam ''
an accumulation of vegetable matter that is buried and compressed into a black to brown rock like material and results in a layer of coal
Descriptive term for individual layers of coal found in the geological strata
A naturally formed layer of coal within the Earth
a seam of coal
thin layer of coal
A bed of coal usually thick enough to be mined with profit
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