Resumen del producto

The transport  of continental materials of natural and/or anthropic origin as well as their dispersion  and final deposition in marine environments can be inferred from the analysis of the textural tendencies of  sediments. The exploitation of copper ore  (since the 19th century) in the Santa Rosalía mining district has caused the accumulation of potentially toxic elements (PTEs) in sediments off the western coast of the Gulf of California; however, after several decades of mining, little is known about the mobilization and final destination of  these PTEs. In present work, the net sedimentary transport and dispersion of Cu and Zn is inferred in front of the mining district of Santa Rosalía at the western margin of the Gulf of California. Net sedimentary transport is dominantly  towards the southeast, with a change towards the east of the port of Santa Rosalía. The spatial distribution of Cu and Zn showed the same pattern as the net sediment transport, which suggests that the dispersion of PTEs is controlled by the textural tendencies of the sediments and their transport, corroborated by hydrodynamic models of the marine currents at the western margin of the Gulf of California.

Palabras clave: Textural tendencies; Net sedimen transport; Gulf of California; Mining district of Santa Rosalía

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