Carboniferous
This is because natural gas and oil deposits were formed together
coal seam
Coal deposits form over a long period of time through biological and geological process. Dead plant matter is converted into peat, which is converted into lignite. Lignite is converted into sub-bituminous coal, after that bituminous coal, and lastly anthracite.
Todays coal was formed millions of years ago. Sum of the earliest coal deposits formed only about 1 million years ago whereas the old deposits are from 300 million years ago. Coal is formed where plant life has died and then eventually sink to the bottom of swampy areas or the water level has risen and covered the dead plant life. Over time as the amount of dead plant life accumulates at the bottom of the swampy area it turns into a dense soggy material known as peat then as the land changed and the pressure upon the peat built due to deeper burial, sandstone and sedimentary rocks that may have formed due to the changing land, the water in the peat is squeezed out and when heat is added from the earths core, the peat is turned into coal.
A coal formed from Botryococcus Braunii deposits
Layers of sediments compressed the layers of vegetation to form the coal deposits.
Carboniferous
Millions of years of pressure and heat turned decaying animals and plants into coal.
This is because natural gas and oil deposits were formed together
coal seam
Coal deposits mean nothing at all to collie dogs.
South Africa has the largest coal deposits in Africa.
Coal deposits form over a long period of time through biological and geological process. Dead plant matter is converted into peat, which is converted into lignite. Lignite is converted into sub-bituminous coal, after that bituminous coal, and lastly anthracite.
what is a ridge formed from deposits are
Most coal deposits in the eastern nited
Todays coal was formed millions of years ago. Sum of the earliest coal deposits formed only about 1 million years ago whereas the old deposits are from 300 million years ago. Coal is formed where plant life has died and then eventually sink to the bottom of swampy areas or the water level has risen and covered the dead plant life. Over time as the amount of dead plant life accumulates at the bottom of the swampy area it turns into a dense soggy material known as peat then as the land changed and the pressure upon the peat built due to deeper burial, sandstone and sedimentary rocks that may have formed due to the changing land, the water in the peat is squeezed out and when heat is added from the earths core, the peat is turned into coal.