Partitioning of the Transition Metals Mn, Fe, Co, Ni and Zn between Orthopyroxene and Silicate Melt : Ionic Size Effect to the Partitioning Behavior

スポンサーリンク

概要

• 論文の詳細を見る

• Partition coefficients of Mn2+, Fe2+, CO2+, Ni2+, and Zn2+ between orthopyroxene and silicate melt have been determined in the system Mg2SiO4-SiO2-H2O at pressures of 1 and 3 GPa and at a temperature of 1400℃. The partition coefficient was defined by the ratio of the concentration of an element in orthopyroxene to that of the element in silicate melt. Partition coefficients were plotted on a partition coefficient versus ionic radius (PC-IR) diagram. Partition coefficients were linearly related to ionic radii. However, the partition coefficient of Zn deviated from the linear relationship between partition coefficients and ionic radii. This was called the Zn2+ anomaly.However, a partition coefficient versus metal and oxygen (M-O) distance (PC-MO) diagram was depicted instead of a PC-IR diagram. On a PC-MO diagram, partition coefficients were linearly related to M-O distances. An element with a small M-O distance are concentrated in orthopyroxene. The Zn2+ anomaly disappeared on PC-MO diagrams. The partitioning behavior between a site (an M1 or M2 site) in orthopyroxene and silicate melt was estimated by using the intracrystalline cation distribution data. These partition coefficients were plotted on both a PC-M(1)O diagram and a PC-M(2)O diagram. The element of a small M(1)-O distance was concentrated in orthopyroxene on the PC-M(1)O diagram. The lines were negative gentle slopes for the PC-M(2)O diagram. Partition coefficients between the M2 site in orthopyroxene and silicate melt were not almost dependent on the M(2)-O distance.

• 北海道大学 = Hokkaido Universityの論文

著者

• Hashizume Hideo

  National Institute for Materials Science

• Hashizume H

  National Inst. Material Sci. Ibaraki Jpn

• Hashizume Hideo

  Ecomaterials Center National Institute For Materials Science

関連論文

• ADSORPTION OF AROMATIC COMPOUNDS IN WATER BY TALC
• ADSORPTION OF NUCLEIC ACID BASES AND RIBOSE BY MG RICH MONTMORILLONITE(Chemical Evolution, International Symposium on Origins of Life and Astrobiology)
• Partitioning of the Transition Metals Mn, Fe, Co, Ni and Zn between Orthopyroxene and Silicate Melt : Ionic Size Effect to the Partitioning Behavior
• Partitioning Behavior of Mn, Fe, Co, Ni and Zn between an Octahedral Site in Olivine and Silicate Melt
• Adsorption of Mono-,Di-,Tri-,and Tetra-Glycine by Mesoporous Materials FSM-16
• BASAL SPACING OF MONTMORILLONITE/AMINO ACID COMPLEXES AT DIFFERENT RELATIVE HUMIDITY
• Stability of FSM-16 in a Highly Moist and Aquatic Condition

スポンサーリンク