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History of the exploration of coalPart IBuried Sun
What is coal?
Carboniferous period 360 - 300 million years ago
Coalification(Ranks of Coal)
Dead Vegetation + Time + Pressure +Heat = Coal
Peat
Lignite
Sub-bituminous  Coal
Bituminous Coal
Anthracite
Sub-bitiminous 35-45% Carbon Content Peat  10-25% Carbon Content 5.  Anthracite 86-98% Carbon Content  Lignite  25-35% Carbon Content 4.  Bituminous  45-86% Carbon Content
Pressure of Ranks
Photosynthesis and Decomposition:Aerobic vs Anaerobic
The Anaerobic Environment
Carbon Rings
Coal 1
Coal 1
Coal 1

Coal 1