Jochen Hoefs
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View article: Isotopic history of seawater: the stable isotope character of the global ocean at present and in the geological past
Isotopic history of seawater: the stable isotope character of the global ocean at present and in the geological past Open
After the atmosphere, the ocean is the most well-mixed and homogeneous global geochemical reservoir. Both physical and biological processes generate elemental and isotope variations in seawater. Contrasting geochemical behaviors cause elem…
View article: Cu‐Isotope Evidence for Subduction Modification of Lithospheric Mantle
Cu‐Isotope Evidence for Subduction Modification of Lithospheric Mantle Open
Ultramafic xenoliths from southeastern Arizona, USA, provide evidence for Cu‐isotope heterogeneity in the lithospheric mantle. We report new data on Type I (Cr‐, Mg‐rich) peridotites, but also the first Cu‐isotope data for Fe‐Ti‐Al‐rich Ty…
View article: The Earth's atmosphere – A stable isotope perspective and review
The Earth's atmosphere – A stable isotope perspective and review Open
This review summarizes the stable isotope composition of the gases and aerosols comprising the Earth's atmosphere. Recent technical progress in analytical methodologies has enabled analysis the H- and O-isotopic composition of water vapor …
View article: A nephelinitic component with unusual δ56Fe in Cenozoic basalts from eastern China and its implications for deep oxygen cycle
A nephelinitic component with unusual δ56Fe in Cenozoic basalts from eastern China and its implications for deep oxygen cycle Open
Cycling of elements with multiple valences (e.g., Fe, C, and S) through subduction and magmatism may dictate the redox evolution of the deep mantle and atmosphere. To investigate the potential of Fe isotopes as a tracer of such cycles, her…