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...
An analysis of earlier measurements and author's data serves as a basis for a discussion of origin of deep-sea hydrogen. High hydrogen concentrations (0.001 ml/l or higher) in geothermal brines of the
