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Valence state partitioning of vanadium between olivine-liquid; estimates of the oxygen fugacity of Y980459 and application to other olivine-phyric Martian basalts

C. K. Shearer, G. McKay, J. J. Papike and J. M. Karner
Valence state partitioning of vanadium between olivine-liquid; estimates of the oxygen fugacity of Y980459 and application to other olivine-phyric Martian basalts (in Planetary materials; from the Earth to the Moon and beyond; Jim Papike special issue, Charles Shearer (prefacer), David Vaniman (prefacer) and Ted Labotka (prefacer))
American Mineralogist (October 2006) 91 (10): 1657-1663

Abstract

The valence state of vanadium (V (super 2+) , V (super 3+) , V (super 4+) , and V (super 5+) ) is highly sensitive to variations in redox conditions of basaltic magmas. Differences in valence state will influence its partitioning behavior between minerals and basaltic liquid. Using partitioning behavior of V between olivine and basaltic liquid precisely calibrated for Martian basalts, we determined the oxidation state of a primitive (olivine-rich, high Mg no.) Martian basalt (Y980459) near its liquidus. The behavior of V in the olivine from other Martian olivine-phyric basalts (SaU005, DaG476, and NWA1110) was documented. The combination of oxidation state and incompatible-element characteristics determined from early olivine indicates that correlations among geochemical characteristics such as f (sub O2) , LREE/HREE, initial (super 87) Sr/ (super 86) Sr, and initial epsilon (sub Nd) observed in many Martian basalts is also a fundamental characteristic of these primitive magmas. These observations are interpreted as indicating that the mantle sources for these magmas have a limited variation in f (sub O2) from IW to IW+1 and are incompatible-element depleted. Moreover, these mantle-derived magmas assimilated a more oxidizing (>IW+3), incompatible-element enriched, lower-crustal component as they ponded at the base of the Martian crust.


ISSN: 0003-004X
EISSN: 1945-3027
Coden: AMMIAY
Serial Title: American Mineralogist
Serial Volume: 91
Serial Issue: 10
Title: Valence state partitioning of vanadium between olivine-liquid; estimates of the oxygen fugacity of Y980459 and application to other olivine-phyric Martian basalts
Title: Planetary materials; from the Earth to the Moon and beyond; Jim Papike special issue
Author(s): Shearer, C. K.McKay, G.Papike, J. J.Karner, J. M.
Author(s): Shearer, Charlesprefacer
Author(s): Vaniman, Davidprefacer
Author(s): Labotka, Tedprefacer
Affiliation: University of New Mexico, Department of Earth and Planetary Sciences, Albuquerque, NM, United States
Affiliation: University of New Mexico, Institute of Meteoritics, Albuquerque, NM, United States
Pages: 1657-1663
Published: 200610
Text Language: English
Publisher: Mineralogical Society of America, Washington, DC, United States
References: 33
Accession Number: 2006-091239
Categories: Petrology of meteorites and tektites
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. table
Secondary Affiliation: Los Alamos National Laboratory, USA, United StatesUniversity of Tennessee, USA, United StatesNASA, Johnson Space Center, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 200650
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