Where there is so much coal, so that the earth has not been emptied
How is coal formed? In the history of the earth, about 355 million to 295 million years ago, this period was called the carboniferous. At that time, the plants were not easy to rot after death, most of the land was covered with swamps, so that the plant is still more or less intact after death. A lot of dead trees by the soil surface pressure and the earth interior heat, water gradually lost, has become a more and more close to the pure carbon material, this material is now similar to pure carbon of coal.
The forest is only in the Devonian, that is, before the Carboniferous geological age, although not the Carboniferous coal, but the proportion of coal was formed in the Carboniferous period is much higher than other periods.Why is Carboniferous coal formed the most?Of course, the swamp plays a role. Because of lack of oxygen in the swamp, microbial activity slows down the rate of decay. But the swamp is not only in the Carboniferous, why coal in this period appeared the most? There is a saying that the surrounding microbial activity is not very active.
Hello "easy coal net" for the source of your answer: coal coal contributed to the industrial revolution, to provide power for the factory and the railway, providing gas for lighting, can be processed into a reducing agent for smelting steel. It also can be used as drugs, dyes and other chemical raw materials components, most of the world's power production from coal. Coal is the most important contribution to the development of modern society than any other material. However, whether coal has been produced in the Carboniferous has always been a mystery
