Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Clinopyroxenes oxygen isotopes

Oxygen isotope signatures of Vesuvio rocks show wide variations (S180 —1-7.0 to +10.0) and are negatively correlated with MgO (Ayuso et al. 1998). Helium isotope studies on clinopyroxene and olivine from historical lavas gave values of R/Ra 2.2 to 2.7, close to ratios found in the fumar-oles of Campanian volcanoes (Tedesco et al. 1990 Graham et al. 1993). [Pg.139]

Figure 15 Oxygen-isotopic compositions of individual minerals in (a) aluminum-rich chondrules from ordinary chondrites (Russell et at, 2000) and (h) CR carhonaceous chondrites (Krot et ah, 2002h). (c) Oxygen-isotopic compositions of individual minerals in the CAI-hearing chondmle 17 from Acfer 094 (data from Krot et al, 2003a) (Ahhreviations chd, chondmle cpx, clinopyroxene gl, glass hih, hihonite nph, nepheline ol, olivine opx, orthopyroxene pi, plagioclase px, pyroxene sp, spinel). Figure 15 Oxygen-isotopic compositions of individual minerals in (a) aluminum-rich chondrules from ordinary chondrites (Russell et at, 2000) and (h) CR carhonaceous chondrites (Krot et ah, 2002h). (c) Oxygen-isotopic compositions of individual minerals in the CAI-hearing chondmle 17 from Acfer 094 (data from Krot et al, 2003a) (Ahhreviations chd, chondmle cpx, clinopyroxene gl, glass hih, hihonite nph, nepheline ol, olivine opx, orthopyroxene pi, plagioclase px, pyroxene sp, spinel).
Ongley I. S., Basu A. R., and Kyser T. K. (1987) Oxygen isotopes in coexisting garnets, clinopyroxenes and phlogo-pites of Roberts Victor eclogites implications for petrogenesis and mantle metasomatism. Earth Planet. Sci. Lett. 83, 80-84. [Pg.972]

See other pages where Clinopyroxenes oxygen isotopes is mentioned: [Pg.341]    [Pg.104]    [Pg.114]    [Pg.262]    [Pg.78]    [Pg.116]    [Pg.149]    [Pg.151]    [Pg.156]    [Pg.161]    [Pg.180]    [Pg.334]    [Pg.108]    [Pg.112]    [Pg.304]    [Pg.339]    [Pg.937]    [Pg.945]    [Pg.1378]    [Pg.235]    [Pg.243]    [Pg.322]    [Pg.352]    [Pg.363]    [Pg.571]   
See also in sourсe #XX -- [ Pg.234 , Pg.235 ]



SEARCH



Clinopyroxene

Isotopic oxygen

© 2024 chempedia.info