Coal composition is similar to the chemical composition of plant tissues, both contain the main elements consisting of elements C, H, O, N, S, P. This is understandable, because coal is formed from plant tissue that has undergone coalification. Basically the same coal formation by human beings to make charcoal from wood, the difference, wood charcoal can be made as a result of human engineering and innovation, over the short term, coal is being formed by natural processes, for a period of hundreds to thousands of years. Because coal is formed by natural processes, so many parameters that affect the formation of coal. The higher the intensity the higher the parameters that affect the quality of coal is formed.
Coal Formation Process
I. Principles of Sedimentation
Basically the coal belongs to the type of sedimentary rocks. Sedimentary rocks formed from material or particles are deposited in a basin under certain conditions, and experience the transformation Balk compacting and physically, chemically or biochemically. At the time of deposition of this material can always form a horizontal bedding.
II. Geological Time Scale
The process of sedimentation, compaction, and transportation experienced by the material forming the basis of sediment to become sedimentary rocks millions of years running a long time.
