Archaean layered ultramafic complexes in the Barberton greenstone belt, South Africa, consisting mainly of serpentinized dunite, harzburgite, and orthopyroxenite, as well as websterite and gabbroic rocks, contain dykes and irregular pods and lenses of rodingite. The mineralogy of the rodingites ...
Here we investigate rodingites, serpentinites and pyroxenites from the accretionary complex of Kochi in the Shikoku island from within the Kurosegawa serpentinite mélange. We present petrology, zircon U–Pb geochronology, rare earth element (REE) geochemistry and Lu–Hf isotope data which indicate ...
Considering the geochemical interpretation that the protolith of rodingite (gabbro, plagiogranite or pyroxenite) has considerable NaO (mostly >2.0 wt% bulk), whereas rodingite has low NaO (mostly <1.0 wt% bulk), serpentinization-related rodingitization could locally yield Na-rich fluids, which ...