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Erschienen in:
1995 | OriginalPaper | Buchkapitel
The Effects of Weathering and Natural Heating on Trace Elements of Coal
verfasst von : F. Goodarzi
Erschienen in: Environmental Aspects of Trace Elements in Coal
Verlag: Springer Netherlands
Enthalten in: Professional Book Archive
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Geochemistry of coal seams is variably affected by weathering and natural heating. Weathering of coal implies natural oxidation taking place at low temperature (< 30°C) for several years. In contrast, natural heating is a high temperature event and occurs due to implacement of plutonic or invasion of volcanic rocks into coal seams often for short durations or self-burning of coal seams due to forest fire or lightning.