Artikel
Lizenziert
Nicht lizenziert
Erfordert eine Authentifizierung
Cubic perovskite polymorph of strontium metasilicate at high pressures
-
Wansheng Xiao
,
Dayong Tan
Veröffentlicht/Copyright:
7. März 2015
Abstract
By using a diamond-anvil cell (DAC) with laser heating technology, a cubic perovskite polymorph of SrSiO3 has been synthesized at - 38 GPa and 1500-2000 K for the first time. The P-V data of this new phase give ambient temperate elastic constants of V0 = 49.18(5) Å3, K0 = 211(3) GPa, respectively, when they are fitted against the Birch-Murnaghan equation of state with a fixed K0′ at 4. On decompression, the SrSiO3 cubic perovskite phase becomes unstable at - 6.2 GPa and disappears completely at - 4.7 GPa. The transformed product can be considered as an amorphous phase with a minor amount of small sized crystals in the amorphous matrix. First principle calculations predicted structural properties of both the cubic and the six-layer-repeated hexagonal perovskite polymorphs of SrSiO3 in good agreement with experimental results. The experimental and theoretical results indicate that the larger Sr2+ cation can substitute the Ca2+ cation and enter into the lattice of the cubic perovskite phase of CaSiO3 at lower mantle conditions with only a small lattice strain. These results indicate that Sr can be hosted in cubic perovskite CaSiO3 found as inclusions in diamonds originating from the lower mantle
Received: 2013-1-16
Accepted: 2013-6-30
Published Online: 2015-3-7
Published in Print: 2013-11-1
© 2015 by Walter de Gruyter Berlin/Boston
Sie haben derzeit keinen Zugang zu diesem Inhalt.
Sie haben derzeit keinen Zugang zu diesem Inhalt.
Artikel in diesem Heft
- Highlights and Breakthroughs. Lessons from a lost technology: The secrets of Roman concrete
- Crossroads in Earth and Planetary Materials. H-D interdiffusion in brucite at pressures up to 15 GPa
- Amorphous Materials: Properties, structure, and durability. North American microtektites are more oxidized than tektites
- Actinides in Geology, Energy, and the Environment. Vorlanite, (CaU6+)O4, from Jabel Harmun, Palestinian Autonomy, Israel
- What Lurks in the Martian Rocks and Soil? Investigations of Sulfates, Phosphates, and Perchlorates. Mössbauer parameters of iron in sulfate minerals
- What Lurks in the Martian Rocks and Soil? Investigations of Sulfates, Phosphates, and Perchlorates. Looking for jarosite on Mars: The low-temperature crystal structure of jarosite
- Compressibility and structural stability of two variably hydrated olivine samples. (FO97Fa3) to 34 GPa by X-ray diffraction and Raman spectroscopy
- Interaction between composition and temperature effects on non-bridging oxygen and high-coordinated aluminum in calcium aluminosilicate glasses
- Topotactic transformation and dehydration of the zeolite gismondine to a novel Ca feldspar structure
- The origin of melanophlogite, a clathrate mineral, in natrocarbonatite lava at Oldoinyo Lengai, Tanzania
- Clay mineral evolution
- Experimental determination of solubilities of sodium tetraborate (borax) in NaCl solutions, and a thermodynamic model for the Na-B(OH)3-Cl-SO4 system to high-ionic strengths at 25 °C
- Thermodynamic basis for evolution of apatite in calcified tissues
- A first-principles calculation of the elastic and vibrational anomalies of lizardite under pressure
- Acoustic velocity measurements for stishovite across the post-stishovite phase transition under deviatoric stress: Implications for the seismic features of subducting slabs in the mid-mantle
- A new framework topology in the dehydrated form of zeolite levyne
- Mid- and far-infrared spectra of synthetic CaMg2(Al4–xGax)(Si1–yGey)O10(OH,OD)2- clintonite: Characterization and assignment of the Ca-Oinner and Ca-Oouter stretching bands
- Mechanism of mineral transformations in krennerite, Au3AgTe8, under hydrothermal conditions
- Cubic perovskite polymorph of strontium metasilicate at high pressures
- Size distributions of nanoparticles from magnetotactic bacteria as signatures of biologically controlled mineralization
- Medium-range order in disordered K-feldspars by multinuclear NMR
- Infrared signatures of OH-defects in wadsleyite: A first-principles study
- K-Ar dating and δ18O-δD characterization of nanometric illite from Ordovician. K-bentonites of the Appalachians: Illitization and the Acadian-Alleghenian tectonic activity
- New morphological, chemical, and structural data of woolly erionite-Na from Durkee, Oregon, U.S.A.
- New experimental data on phase relations for the system Na2CO3-CaCO3 at 6 GPa and 900–1400 ºC
- Melting and subsolidus phase relations in the system Na2CO3-MgCO3±H2O at 6 GPa and the stability of Na2Mg(CO3)2 in the upper mantle
- A critical comment on Ertl et al. (2012): “Limitations of Fe2+ and Mn2+ site occupancy in tourmaline: Evidence from Fe2+- and Mn2+-rich tourmaline”
- Letter. Developing vanadium valence state oxybarometers (spinel-melt, olivine-melt, spinel-olivine) and V/(Cr+Al) partitioning (spinel-melt) for martian olivine-phyric basalts
Artikel in diesem Heft
- Highlights and Breakthroughs. Lessons from a lost technology: The secrets of Roman concrete
- Crossroads in Earth and Planetary Materials. H-D interdiffusion in brucite at pressures up to 15 GPa
- Amorphous Materials: Properties, structure, and durability. North American microtektites are more oxidized than tektites
- Actinides in Geology, Energy, and the Environment. Vorlanite, (CaU6+)O4, from Jabel Harmun, Palestinian Autonomy, Israel
- What Lurks in the Martian Rocks and Soil? Investigations of Sulfates, Phosphates, and Perchlorates. Mössbauer parameters of iron in sulfate minerals
- What Lurks in the Martian Rocks and Soil? Investigations of Sulfates, Phosphates, and Perchlorates. Looking for jarosite on Mars: The low-temperature crystal structure of jarosite
- Compressibility and structural stability of two variably hydrated olivine samples. (FO97Fa3) to 34 GPa by X-ray diffraction and Raman spectroscopy
- Interaction between composition and temperature effects on non-bridging oxygen and high-coordinated aluminum in calcium aluminosilicate glasses
- Topotactic transformation and dehydration of the zeolite gismondine to a novel Ca feldspar structure
- The origin of melanophlogite, a clathrate mineral, in natrocarbonatite lava at Oldoinyo Lengai, Tanzania
- Clay mineral evolution
- Experimental determination of solubilities of sodium tetraborate (borax) in NaCl solutions, and a thermodynamic model for the Na-B(OH)3-Cl-SO4 system to high-ionic strengths at 25 °C
- Thermodynamic basis for evolution of apatite in calcified tissues
- A first-principles calculation of the elastic and vibrational anomalies of lizardite under pressure
- Acoustic velocity measurements for stishovite across the post-stishovite phase transition under deviatoric stress: Implications for the seismic features of subducting slabs in the mid-mantle
- A new framework topology in the dehydrated form of zeolite levyne
- Mid- and far-infrared spectra of synthetic CaMg2(Al4–xGax)(Si1–yGey)O10(OH,OD)2- clintonite: Characterization and assignment of the Ca-Oinner and Ca-Oouter stretching bands
- Mechanism of mineral transformations in krennerite, Au3AgTe8, under hydrothermal conditions
- Cubic perovskite polymorph of strontium metasilicate at high pressures
- Size distributions of nanoparticles from magnetotactic bacteria as signatures of biologically controlled mineralization
- Medium-range order in disordered K-feldspars by multinuclear NMR
- Infrared signatures of OH-defects in wadsleyite: A first-principles study
- K-Ar dating and δ18O-δD characterization of nanometric illite from Ordovician. K-bentonites of the Appalachians: Illitization and the Acadian-Alleghenian tectonic activity
- New morphological, chemical, and structural data of woolly erionite-Na from Durkee, Oregon, U.S.A.
- New experimental data on phase relations for the system Na2CO3-CaCO3 at 6 GPa and 900–1400 ºC
- Melting and subsolidus phase relations in the system Na2CO3-MgCO3±H2O at 6 GPa and the stability of Na2Mg(CO3)2 in the upper mantle
- A critical comment on Ertl et al. (2012): “Limitations of Fe2+ and Mn2+ site occupancy in tourmaline: Evidence from Fe2+- and Mn2+-rich tourmaline”
- Letter. Developing vanadium valence state oxybarometers (spinel-melt, olivine-melt, spinel-olivine) and V/(Cr+Al) partitioning (spinel-melt) for martian olivine-phyric basalts
