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

F. Grousset , Olivier François Xavier Donard (1)

1 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux

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.

Domaines: Chimie analytique

F. Grousset, Olivier François Xavier Donard. Enrichments in Hg, Cd, As, and Sb in recent sediments of Azores-Iceland Ridge. Geo-Marine Letters, 1984, 4 (2), pp.117-124. ⟨10.1007/BF02277082⟩. ⟨hal-01590176⟩