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Los recursos marinos de cobalto se encuentran en el mar
Science (New York, N.Y.)
|May 2, 1986
Resumen
Las costras de ferromanganeso ricas en cobalto en el océano son un recurso potencial para metales estratégicos como el cobalto, el manganeso y el platino. Su ubicación dentro de las zonas económicas nacionales simplifica la recuperación en comparación con los nódulos abismales.
Área de la Ciencia:
- Geología marina Geología marina.
- Recursos Minerales Los recursos minerales se encuentran en las tierras.
- La geoquímica es la geoquímica.
Sus antecedentes:
- Los óxidos de ferromanganeso en el océano abierto exhiben un mayor enriquecimiento de cobalto que otros sedimentos o rocas extendidas.
- Las concentraciones de cobalto en las costras de ferromanganeso en montañas submarinas y crestas oceánicas pueden exceder el 1 por ciento.
- Estas costras se encuentran entre los materiales de formación más lenta de la Tierra, creciendo a una tasa de una capa molecular cada 1 a 3 meses.
Objetivo del estudio:
- Para resaltar las costras de ferromanganeso como recursos potenciales para metales estratégicos.
- Para comparar la accesibilidad de las costras de ferromanganeso frente a los nódulos abismales para la explotación de los recursos.
- Informar sobre el desarrollo en curso de las declaraciones de impacto ambiental para la explotación de la corteza.
Principales métodos:
- Análisis de la composición de óxido de ferromanganeso.
- Estudios geológicos de montañas submarinas y crestas oceánicas.
- Evaluación de las tasas de crecimiento de la corteza.
- Evaluación de la ubicación de los recursos en relación con las zonas económicas.
Principales resultados:
- Las costras de ferromanganeso están significativamente enriquecidas en cobalto.
- El cobalto, el manganeso y el platino son componentes clave de estas costras, identificados como metales estratégicos prioritarios.
- Las costras ricas en cobalto se encuentran dentro de las zonas económicas exclusivas de las naciones, a diferencia de los nódulos abismales ubicados en aguas internacionales.
Conclusiones:
- Las costras de ferromanganeso representan un recurso doméstico viable para metales críticos.
- La explotación de estas costras ofrece ventajas sobre los nódulos abismales debido a su ubicación.
- Las evaluaciones de impacto ambiental son cruciales y actualmente en desarrollo para la minería responsable de la corteza.
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