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Because all the minerals piled on top of it and pressed down on it so they all squish on top on it
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∙ 12y ago
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Is seams the name of the layers of coal?
Yes, they are called coal seams.
Why is coal usually found in layers?
I think it is because animals died then mud piled on top the another layer of animals and so on.
Where is coal deposited?
Coal is deposited usually in layers, underground, sometimes fairly close to the surface.
What minerals are being searched for when strip mining?
Coal and oil sands, found in extensive layers close to the surface, are the usual targets of strip mining.
How does mining coal cause enviromental problems?
when coal is mined from earths surface,people remove the layers of soil above the coal
What is found in layers of moss that have been buried in wetlands and can be harvested and burned like coal?
coal
How do people find coal?
Coal can be found on the surface in areas in which the overlying strata have eroded. Coal layers can be exposed in road cuts and on the walls of river valleys. Coal can also be discovered by drilling core samples down from the surface.
Why is the coal found in layers?
it is a sedimentary rock which means it has been transformed from a different type of rock over millions of years :)
Is seams the name of the layers of coal?
Yes, they are called coal seams.
How were coal deposits formed in western Canada during mesozoic era?
Layers of sediments compressed the layers of vegetation to form the coal deposits.
Why is coal usually found in layers?
I think it is because animals died then mud piled on top the another layer of animals and so on.
Why leaf prints are found frequently in between the layers of coal?
They have an increased feldspar and sctossin level, which cause a sanstone break.
How we do coal?
By digging big holes (called coal mines) in the ground and separating the coal, rock, and soil in the material dug from those holes. Coal usually comes in layers (called seams) between layers of other sedimentary rocks.
What are layers of coal called?
The layers of coal are called peat, lignite, subbituminous, bituminous caol, and anthracite. Peat being the most inexpensive and anthracite being the most valuable. Most coal in use is bituminous. Another answer: A layer of coal in a mine is called a coal seam.
How do we obtain coal?
By digging big holes (called coal mines) in the ground and separating the coal, rock, and soil in the material dug from those holes. Coal usually comes in layers (called seams) between layers of other sedimentary rocks.
What is a rock called when it is produced from layers of plants?
coal
Where is coal deposited?
Coal is deposited usually in layers, underground, sometimes fairly close to the surface.
