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Nódulos de manganeso en el fondo marino: correlación inversa entre el grado y la abundancia
Resumen
La abundancia de cobre y níquel en los nódulos de manganeso disminuye a medida que aumenta su concentración en el fondo marino. Este hallazgo desafía las suposiciones anteriores sobre la predicción de los recursos minerales de aguas profundas.
Área de la Ciencia:
- Geología marina Geología marina.
- Mineralogía de aguas profundas.
- Estimación de la estimación de los recursos.
Sus antecedentes:
- Los nódulos de manganeso son concreciones polimetales que se encuentran en las llanuras abismales de los océanos del mundo.
- Estos nódulos son una fuente potencial de metales valiosos, incluidos el cobre y el níquel.
- Las predicciones anteriores de recursos a menudo asumían una correlación positiva entre el grado de metal y la abundancia.
Objetivo del estudio:
- Investigar la relación entre el grado de cobre y níquel y su abundancia en nódulos de manganeso.
- Para evaluar la validez de los supuestos utilizados en las estimaciones de los recursos de nódulos de manganeso.
Principales métodos:
- Análisis estadístico de los datos existentes sobre la composición y abundancia de nódulos de manganeso.
- Análisis de correlación a través de diferentes escalas espaciales, desde regiones locales hasta todo el Océano Pacífico.
Principales resultados:
- Se observó una correlación negativa significativa entre el grado de cobre y níquel y su abundancia en nódulos de manganeso.
- Esta correlación negativa es cierta tanto dentro de áreas localizadas como a través del Océano Pacífico más amplio.
Conclusiones:
- El estudio contradice una suposición fundamental que sustenta muchas predicciones de los recursos de nódulos de manganeso.
- Si bien la correlación no excluye la existencia de reservas extraíbles en sitios específicos, requiere una reevaluación de los modelos de predicción de recursos.
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