Experimental study of binary solid solutions in the system CaMgSi2O6-CaFeSi2O6-NaFeSi2O6 and Mg and Fe partition between Ca(Mg,Fe)Si2O6 and K(Mg,Fe)3(AlSi3O10)[OH]2

被引：1

作者：

Kotel'nikov, A. R. ^{[1
]}

Koval'skii, A. M. ^{[1
]}

Suk, N. I. ^{[1
]}

Kotel'nikova, Z. A. ^{[2
]}

Petukhov, P. A. ^{[1
]}

Koval'skaya, T. N. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Expt Mineral, Chernogolovka 132432, Moscow Region, Russia

[2] Russian Acad Sci, Inst Geol Ore Deposits Petrog Mineral & Geochem, Staromonetnyi Per 35, Moscow 119017, Russia

来源：

RUSSIAN GEOLOGY AND GEOPHYSICS | 2016年 / 57卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

clinopyroxene; diopside; hedenbergite; biotite; experimental study; cation exchange equilibria; SYNTHETIC-FLUID-INCLUSIONS; EQUILIBRIA; QUARTZ;

D O I：

10.1016/j.rgg.2015.08.012

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Clinopyroxene binary solid solutions in the systems diopside-hedenbergite, diopside-aegirine, and hedenbergite-aegirine have been synthesized. Based on data from X-ray diffraction studies, the unit-cell parameters of these solid solutions have been refined, and their concentration dependences have been established. These clinopyroxene series are near-ideal continuous solid solutions. The partition of Mg and Fe between the diopside-hedenbergite binary solid solutions and biotite of the phlogopite-annite series was studied by the method of cation exchange equilibria at 650 and 750 degrees C and 2 kbar. The application of KF solution as a reaction medium permitted achieving equilibrium in a considerably shorter time and from its both sides. The partition of Mg and Fe is near-ideal within the experimental error. The experimental results were compared with results of calculations based on literature data on the thermodynamic properties of pure end-members. (C) 2016, V.S. Sobolev IGM, Siberian Branch of the RAS. Published by Elsevier B.V. All rights reserved.

引用

页码：549 / 561

页数：13

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