Electrochemical stripping analysis (ESA) is a trace electroanalytical technique for the
determination of metal cations, inorganic ions, organic compounds and biomolecules. It is …

Hydrothermal vents in the sea floor release large volumes of hot, metal-rich fluids into the
deep ocean. Until recently, it was assumed that most of the metal released was incorporated …

Marine Fe–Mn oxyhydroxide crusts form by precipitation of dissolved components from
seawater. Three hydrogenetic crust samples (one phosphatized) and two hydrothermal Mn …

Mantle-derived ultramafic rocks commonly occur on the seafloor at slow-spreading axes and
are tectonically emplaced along shear zones. Since the early 1990s, a growing number of …

The redox-sensitive stable isotope geochemistry of chromium bears the potential to monitor
the attenuation of chromate pollution and to investigate changes in environmental conditions …

Chromium isotopes are fractionated during redox reactions and have the potential to provide
a record of changes in the oxygenation levels of the oceans in the geological past. However …

Seawater chromium (Cr) isotope and concentration data are presented from multiple sites in
the Arctic Ocean, and three locations in the Atlantic and Pacific Oceans. A 2400-m profile …

Chromium offers a redox sensitive isotopic proxy with potential for tracing past oxygen levels
in the oceans. We explore this potential in a pelagic succession of marine carbonate …

Stable chromium (Cr) isotopes can be used as a tracer for changing redox conditions in
modern marine systems and in the geological record. We have investigated isotope …

Chromium consists of four stable isotopes (50 Cr, 52 Cr, 53 Cr and 54 Cr) with natural
abundances of 4.35%, 83.79%, 9.50% and 2.36%, respectively (Rossman and Taylor 1998) …