Reconstruyendo el pasado geológico por medio del análisis de minerales pesados
Keywords:
rocas, sedimentos, corteza terrestre, minerales, procedencia, geologíaAbstract
Las rocas sedimentarias se forman a partir de la acumulación de sedimentos. Estos sedimentos consisten en fragmentos que fueron desprendidos de una roca parental o de organismos por procesos de meteorización (mecánica o química). El agua, el viento o el hielo glacial suelen ser agentes que sirven para transportar los productos de la meteorización a lugares de sedimentación conocidos como cuencas sedimentarias, donde se acumulan y por procesos de diagénesis forman rocas de tipo sedimentario. Incluso al experimentar aumentos drásticos en la profundidad de enterramiento se pueden formar rocas de tipo metamórfico a partir de las rocas sedimentarias previamente formadas.
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References
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