Trace element distribution in mineral separates of the Allende inclusions and their genetic implications

Hiroshi Nagasawa,Douglas P Blanchard,Jeffrey W Jacobs,Joyce C Brannon,John A Philpotts,Naoki Onuma

Geochimica et Cosmochimica Acta（1977）

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摘要

Concentrations of the REE, Sc, Co, Fe, Zn, Ir, Na and Cr were determined by instrumental neutron activation and mass spectrometric isotope dilution analysis for mineral separates of the coarseand fine-grained types (group I and II of Martin and Mason's classification) of the Allende inclusions.

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关键词

abundance,genetics,trace elements,granular materials,inclusions,magnesium isotopes,closed system,trace element,magnesium,crystallography,granular material

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