Compressibility of Ca3Al2Si3O12 perovskite up to 55 GPa

被引：4

作者：

Greaux, Steeve ^{[1
,2
]}

Andrault, Denis ^{[3
]}

Gautron, Laurent ^{[4
]}

Bolfan-Casanova, Nathalie ^{[3
]}

Mezouar, Mohamed ^{[5
]}

机构：

[1] Ehime Univ, Geodynam Res Ctr, Matsuyama, Ehime 7908577, Japan

[2] Tokyo Inst Technol, Earth Life Sci Inst, Tokyo 1528550, Japan

[3] Univ Blaise Pascal, Lab Magmas & Volcans, Clermont Ferrand, France

[4] Univ Paris Est, Lab Geomat & Geol Ingn, Marne La Vallee, France

[5] European Synchrotron Radiat Facil, F-38043 Grenoble, France

来源：

PHYSICS AND CHEMISTRY OF MINERALS | 2014年 / 41卷 / 06期

关键词：

Grossular garnet; CaSiO3; perovskite; Aluminum; High pressure; In situ X-ray diffraction; EQUATION-OF-STATE; HIGH-PRESSURE; CASIO3; PEROVSKITE; PHASE-RELATIONS; AB-INITIO; TRANSITION; GARNET; SYSTEM; AL; TRANSFORMATION;

D O I：

10.1007/s00269-014-0673-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Compressibility of perovskite-structured Ca3Al2Si3O12 grossular (GrPv) was investigated at high pressure and high temperature by means of angle-dispersive powder X-ray diffraction using a laser-heated diamond anvil cell. We observed the Pbnm orthorhombic distortion for the pure phase above 50 GPa, whereas below this pressure, Al-bearing CaSiO3 perovskite coexists with an excess of corundum. GrPv has a bulk modulus (K (0) = 229 +/- A 5 GPa; fixed to 4) almost similar to that reported for pure CaSiO3 perovskite. Its unit-cell volume extrapolated to ambient conditions (V (0) = 187.1 +/- A 0.4 (3)) is found to be similar to 2.5 % larger than for the Al-free phase. We observe an increasing unit-cell anisotropy with increasing pressure, which could have implications for the shear properties of Ca-bearing perovskite in cold slabs subducted into the Earth's mantle.

引用

页码：419 / 429

页数：11

共 50 条

[41] Equation of state for Mg3Al2Si3O12 pyrope: Implications for post-garnet transitions and mantle dynamics
Dymshits, Anna M.
Dorogokupets, Peter I.
Sharygin, Igor S.
Shatskiy, Anton F.
PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 2023, 343
[42] Synthesis and crystal chemistry of Fe3+-bearing (Mg,Fe3+)(Si,Fe3+)O3 perovskite
Hummer, Daniel R.
Fei, Yingwei
AMERICAN MINERALOGIST, 2012, 97 (11-12) : 1915 - 1921
[43] Raman spectra of bixbyite, Mn2O3, up to 40 GPa
Shim, S. -H.
LaBounty, D.
Duffy, T. S.
PHYSICS AND CHEMISTRY OF MINERALS, 2011, 38 (09) : 685 - 691
[44] P–V–T equation of state of Mn3Al2Si3O12 spessartine garnet
Steeve Gréaux
Akihiro Yamada
Physics and Chemistry of Minerals, 2014, 41 : 141 - 149
[45] Compressibility of a natural smithsonite ZnCO3 up to 50GPa
Gao, Jing
Zhu, Feng
Lai, Xiao-jing
Huang, Rong
Qin, Shan
Chen, Dong-liang
Liu, Jing
Zheng, Li-Rong
Wu, Xiang
HIGH PRESSURE RESEARCH, 2014, 34 (01) : 89 - 99
[46] High-pressure phase relations in Ca2AlSiO5.5 and energetics of perovskite-related compounds with oxygen defects in the Ca2Si2O6-Ca2Al2O5 join
Kojitani, Hiroshi
Wakabayashi, Yutaka
Tejima, Yasuko
Kato, Chikage
Haraguchi, Maiko
Akaogi, Masaki
PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 2009, 173 (3-4) : 349 - 353
[47] Anomalous lattice compressibility of hexagonal Eu2O3
Irshad, K. A.
Shekar, N. V. Chandra
MATERIALS CHEMISTRY AND PHYSICS, 2017, 195 : 88 - 93
[48] High pressure dissociation of CaTiO3 perovskite into CaO and CaTi2O5
Truffet, B.
Fiquet, G.
Morard, G.
Baron, M. A.
Miozzi, F.
Harmand, M.
Ravasio, A.
Mezouar, M.
Guyot, F.
PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 2023, 334
[49] In situ measurements of the phase transition boundary in Mg3Al2Si3O12:: implications for the nature of the seismic discontinuities in the Earth's mantle
Hirose, K
Fei, YW
Ono, S
Yagi, T
Funakoshi, K
EARTH AND PLANETARY SCIENCE LETTERS, 2001, 184 (3-4) : 567 - 573
[50] Calorimetric study on majorite-perovskite transition in the system Mg4Si4O12-Mg3Al2Si3O12:: transition boundaries with positive pressure-temperature slopes
Akaogi, M
Ito, E
PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 1999, 114 (3-4) : 129 - 140

← 1 2 3 4 5 →