Como se forma el carbón

El carbón es un combustible sólido de origen vegetal, se comenzó a formar en el periodo carbonífero (hace 345 millones de años y duró unos 65 millones), cuando existían grandes extensiones del planeta cubiertas por una vegetación muy abundante que crecía en pantanos.

Al morir estas plantas, quedaban sumergidas en agua, y se descomponían lentamente. Al ocurrir esta descomposición, la materia vegetal perdía átomos de oxígeno e hidrógeno, con lo que quedaba un depósito con un elevado porcentaje de carbono (formándose las turberas). Con el paso del tiempo, la arena y lodo del agua fueron acumulándose sobre algunas de estas turberas. La presión de las capas superiores, así como los movimientos de la corteza terrestre y, en ocasiones, el calor volcánico, comprimieron y endurecieron los depósitos hasta formar carbón.



 Carvonización


































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Comentarios

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