Web3 mei 2024 · Magmatism in the East African Rift System (EARS) contains a spatial and temporal record of changing contributions from the Afar mantle plume, anciently … Web27 mei 2024 · Note that almost coeval Phalaborwa massif was derived from a sharply distinct source, which is interpreted as metasomatized lithospheric mantle or an enriched asthenosphere component . Minor amounts of crustal contamination can significantly change the Os isotopic composition of magma with low Os concentrations [46,47].
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WebMetasomatism of the subducting slab and mantle wedge influences the rheological and chemical properties of rocks at the subduction zone interface. We investigated a serpentinite body that originated from the mantle wedge in the Tomisato area of the Sanbagawa metamorphic belt, SW Japan. At the boundary between the serpentinite body and a … Web2 nov. 2024 · We present experimentally determined partition coefficients (D min/melt ) for F and Cl between pargasite (amphibole), phlogopite (mica), clinopyroxene and basanitic … state v. arreola washington
A metasomatized 18O-rich veined lithospheric mantle source for ...
Web10 apr. 2024 · Download Citation On Apr 10, 2024, Hongda Hao and others published A metasomatised mantle origin for post‐collisional porphyry ore‐forming magmas in the Sanjiang metallogenic belt, Southwest ... Web1 jan. 1991 · Metasomatic oxidation of upper mantle periodotite. January 1, 1991. Examination of Fe3+ in metasomatized spinel peridotite xenoliths reveals new … Web6 mei 2024 · We present in situ major element, trace element, and Sr–Nd isotope data of apatite from an alkaline–carbonatite intrusion in the South Qinling Belt (SQB) to investigate their magma evolution and mantle sources. The Shaxiongdong (SXD) complex consists predominantly of the early Paleozoic hornblendite, nepheline syenite, and subordinate … state v washington case