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Química de las partículas y sedimentos oceánicos: implicaciones para la resuspensión de sedimentos de fondo

E T Baker, R A Feely

Science (New York, N.Y.)

|May 5, 1978

Resumen

El material particulado en el Océano Pacífico ecuatorial oriental muestra una gruesa capa nepheloide bentónica. Esta capa de capa es esta capa.

Área de la Ciencia:

Oceanografía La oceanografía es la oceanografía.
Química marina La química marina es la química de las aguas marinas.
La sedimentología sedimentológica.

Sus antecedentes:

Una capa nepheloide bentónica (BNL) de 400 metros de espesor existe en el Océano Pacífico ecuatorial oriental.
Este BNL se caracteriza por concentraciones elevadas de elementos específicos en comparación con las aguas superpuestas.

Objetivo del estudio:

Para analizar la composición de partículas en suspensión dentro del BNL.
Para determinar la fuente de los elementos enriquecidos en el BNL.

Principales métodos:

Análisis de muestras de partículas en suspensión recolectadas del BNL.
Cálculos de balance de masas químicos para comparar la composición de BNL con los sedimentos locales del fondo.

Principales resultados:

El BNL está significativamente enriquecido en aluminio, silicio, hierro y manganeso.
Los cálculos del balance de masas indican que la resuspensión de los sedimentos locales del fondo (> fracción de 1 micrómetro) es la fuente principal de estos elementos enriquecidos.

Conclusiones:

El BNL en el Pacífico ecuatorial oriental se forma principalmente por la resuspensión de sedimentos locales del fondo.
Comprender la composición de BNL es crucial para interpretar el transporte de sedimentos y los ciclos geoquímicos en la región.

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