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Updated: Jan 3, 2026

Use of Autometallography to Localize and Semi-Quantify Silver in Cetacean Tissues
Published on: October 4, 2018
Silver and copper as pollution tracers in Neogene to Holocene estuarine sediments from southwestern Spain
Francisco Ruiz1, Joaquín Rodríguez Vidal2, Luis Miguel Cáceres2
1Departamento de Ciencias de la Tierra, Universidad de Huelva, 21071 Huelva, Spain; Departamento de Geología y Geoquímica, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
Abstract:
Estuaries are very sensitive ecosystems to human activities and the natural evolution of their drainage basins located upstream. Pollution derived from human activities, such as historical mining or recent industrial wastes, can significantly affect their environmental quality. This paper analyzes the silver and copper contents of four cores extracted in two estuaries of SW Spain. Its chronology and vertical evolution allow to differentiate the effects of several pollution episodes (natural, Roman, 19th-20th centuries) on its different sedimentary environments in the last 6 million years. Possible future applications are included in the fields of environmental management or even education.
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