دورية أكاديمية
Trace element partitioning between clinopyroxene, magnetite, ilmenite and ferrobasaltic to dacitic magmas: an experimental study on the role of oxygen fugacity and melt composition
| العنوان: | Trace element partitioning between clinopyroxene, magnetite, ilmenite and ferrobasaltic to dacitic magmas: an experimental study on the role of oxygen fugacity and melt composition |
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| المؤلفون: | Shepherd, Kat, Namur, Olivier, Toplis, Michael J., Devidal, Jean-Luc, Charlier, Bernard |
| المصدر: | Contributions to Mineralogy and Petrology, 177 (9) (2022-09) |
| بيانات النشر: | Springer Science and Business Media Deutschland GmbH, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Clinopyroxene, Ilmenite, Magnetite, Oxygen fugacity, Trace element partitioning, Vanadium, Geophysics, Geochemistry and Petrology, Physical, chemical, mathematical & earth Sciences, Earth sciences & physical geography, Physique, chimie, mathématiques & sciences de la terre, Sciences de la terre & géographie physique |
| الوصف: | Ilmenite-, magnetite- and clinopyroxene−melt trace element partition coefficients were investigated experimentally as a function of oxygen fugacity and melt composition in a range of synthetic ferrobasaltic bulk compositions. The experiments were performed at a constant temperature (1080 °C) and pressure (1 atm) over a range of oxygen fugacity (fO2) conditions from ca. 2 log units below to ca. 2 log units above the FMQ buffer. The partitioning behaviour of the divalent cations Zn, Mn, Co and Ni are found to be controlled by the degree of polymerisation of the coexisting melt; the partitioning behaviour of rare earth elements, Y and Sc can be explained well by the lattice strain model and the partitioning of the high-field strength elements Zr, Hf, Ta and Nb is influenced by the TiO2 content of the melt. Vanadium partitioning is strongly influenced by oxygen fugacity and a series of linear regression equations are presented to express the dependence of the mineral−melt partitioning behaviour of the multivalent cation V on oxygen fugacity. Furthermore, calibration of the partitioning of vanadium between magnetite–ilmenite pairs as an oxybarometer is proposed and applied to a ferrobasaltic layered intrusion—the Skaergaard intrusion—to provide an estimate of oxygen fugacity. |
| نوع الوثيقة: | journal article http://purl.org/coar/resource_type/c_6501Test article peer reviewed |
| اللغة: | English |
| العلاقة: | https://link.springer.com/content/pdf/10.1007/s00410-022-01957-y.pdfTest; urn:issn:0010-7999; urn:issn:1432-0967 |
| DOI: | 10.1007/s00410-022-01957-y |
| الوصول الحر: | https://orbi.uliege.be/handle/2268/308639Test |
| حقوق: | open access http://purl.org/coar/access_right/c_abf2Test info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsorb.308639 |
| قاعدة البيانات: | ORBi |
| DOI: | 10.1007/s00410-022-01957-y |
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