Enrichments in Hg, Cd, As, and Sb in recent sediments of Azores-Iceland Ridge

• Published in: Geo-Marine Letters
• Main Authors: Grousset, F., Donard, Olivier François Xavier
• Other Authors: Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 1984
• Subjects: [CHIM.ANAL]Chemical Sciences/Analytical chemistry; Iceland
• Online Access: https://hal.science/hal-01590176; https://doi.org/10.1007/BF02277082

cited By 10 International audience Mercury, cadmium, arsenic, and antimony were analyzed in cores sampled on the Azores-Iceland Ridge. High values of 780 μg · kg-1 for Hg, 1.7 μg · g-1 for Cd, 87 μg · g-1 for As, and 8.1 μg · g-1 for Sb occur in the rift valley and transform faults. These enrichments, strictly linked to the ridge, could not have an allochtonous origin. A local hydrogenous flux may explain this phenomenon. These metallic enrichments may be connected to a hydrothermal activity extended between 43° N and 47° N. © 1984 Springer-Verlag New York Inc.