A 'chondritic' eucrite parent body - Inference from trace elements

Details A 'chondritic' eucrite parent body - Inference from trace elements A 'chondritic' eucrite parent body - Inference from trace elements

Jan 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978gecoa..42...27m&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 42, Jan. 1978, p. 27-38.

Computer Science

19

Chondrites, Meteoritic Composition, Neutron Activation Analysis, Planetary Evolution, Trace Elements, Achondrites, Magma, Radiochemistry, Solar Corona, Siderophile Elements, Meteorites, Chemical Composition, Eucrites, Parent Bodies, Trace Elements, Chondrites, Magmas, Neutron Activation Analysis, Refractory Elements, Accretion, Volatile Elements, Metal, Silicates, Solar Nebula, Fractionation, Condensation, Juvinas Meteorite, Moore County Eucrite, Ibitira Meteorite, Serra De Mage Meteorite

Scientific paper

Thirty-three elements were analyzed by radiochemical and instrumented neutron activation in four eucrites - Juvinas (brecciated), Ibitira (vesicular, unbrecciated) and Moore County and Serra de Mage (both cumulate, unbrecciated). Nebular and planetary effects are distinguished in the C1-normalized abundance patterns arranged in the order of volatility. Lithophile, chalcophile, and siderophile patterns are discussed; the stepped lithophile pattern reveals the dominance of nebular processes while the siderophile pattern retains little sign of nebular processes and instead reflects planetary metal-silicate partition. Volatiles were apparently accreted as a fractionated C3-like component, and consistent but subtle C1-normalized abundance differences between eucrites result from crystal/liquid differentiation.

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