Define coal seam . Explain the classification of seams as per thickness
Answers
Answer:
Coal seam
A coal seam is a dark brown or black banded deposit of coal that is visible within layers of rock. These seams are located underground and can be mined using either deep mining or strip mining techniques depending on their proximity to the surface. These seams undergo normal coal formation and serve as a conventional coal resource. The reserves of coal are immense, and are the largest of all of the fossil fuels.
As well, these seams can act as an unconventional source of natural gas. When natural gas is obtained from a coal seam, it is known as coal seam gas or coal bed methane. This gas bonds to the surface of underground coal seams, which are generally filled with water. The pressure of this water makes the gas form a thin film on the surface of the coal. The level of gas bonded to the coal seam depends on the thickness of the coal, the depth of the coal, and the permeability.
- thank u
- please mark as brainliest
Answer:
Answer ⬇
A coal seam is a dark brown or black banded deposit of coal that is visible within layers of rock.