Concentrations lower than 0.3% are not considered representative. Analyses 51-56 show core-to-rim compositional variations of a plagiolase phenocryst 250 ?m in diameter.
Samples for dissolved (<0.2 µm) copper (Cu) in deep-sea pore waters from the Clarion Clipperton Zone, German and Belgian license areas for polymetallic nodule mining in the...