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Margin sediments and rivers are the most significant sources of copper binding ligands in the ocean while sedimentation, microbial uptake and photochemical degradation are the major sinks, suggests a synthesis of research on the cycling of copper ligands in the oceans.
The compositional fingerprint of petit-spot magmas represents an enriched mantle source and carbonatitic or carbonated silicate melts below the oceanic lithosphere, suggests a synthesis of geochemical analyses on petit-spot volcanism.
