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Title: In situ X-ray diffraction of silicate liquids and glasses under dynamic and static compression to megabar pressures

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [2]; ORCiD logo [3];  [3];  [3]; ORCiD logo [3];  [4];  [4]; ORCiD logo [5];  [5]; ORCiD logo [6];  [7];  [8];  [8];  [8];  [8];  [8];  [8];  [9];  [10] more »; ORCiD logo [10]; ORCiD logo [11];  [3] « less
  1. Sorbonne Univ., Paris (France); Univ. of Grenoble (France)
  2. Ecole Polytechnique, Palaiseau (France); Univ. of Oslo (Norway)
  3. Ecole Polytechnique, Palaiseau (France)
  4. Sorbonne Univ., Paris (France)
  5. Arizona State Univ., Tempe, AZ (United States)
  6. Stanford Univ., CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  7. Stanford Univ., CA (United States)
  8. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  9. Univ. Clermont Auvergne, Clermont-Ferrand (France)
  10. European Synchrotron Radiation Facility (ESRF), Grenoble (France)
  11. Helmholtz-Zentrum Dresden Rossendorf, Dresden (Germany)

Properties of liquid silicates under high-pressure and high-temperature conditions are critical for modeling the dynamics and solidification mechanisms of the magma ocean in the early Earth, as well as for constraining entrainment of melts in the mantle and in the present-day core–mantle boundary. In this paper, we present in situ structural measurements by X-ray diffraction of selected amorphous silicates compressed statically in diamond anvil cells (up to 157 GPa at room temperature) or dynamically by laser-generated shock compression (up to 130 GPa and 6,000 K along the MgSiO3glass Hugoniot). The X-ray diffraction patterns of silicate glasses and liquids reveal similar characteristics over a wide pressure and temperature range. Beyond the increase in Si coordination observed at 20 GPa, we find no evidence for major structural changes occurring in the silicate melts studied up to pressures and temperatures exceeding Earth’s core mantle boundary conditions. This result is supported by molecular dynamics calculations. Our findings reinforce the widely used assumption that the silicate glasses studies are appropriate structural analogs for understanding the atomic arrangement of silicate liquids at these high pressures.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES); European Research Council (ERC); National Science Foundation (NSF); Agence National de la Recherche
Grant/Contract Number:
AC02-76SF00515; 670787; EAR0738873; ANR-16-CE31-0008; SF00515, FWP-100182
OSTI ID:
1637929
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Vol. 117, Issue 22; ISSN 0027-8424
Publisher:
National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (48)

Equation of state of rhenium and application for ultra high pressure calibration journal January 2014
Virtual diffraction analysis of Ni [0 1 0] symmetric tilt grain boundaries journal June 2013
Dehydration melting at the top of the lower mantle journal June 2014
Beyond sixfold coordinated Si in SiO 2 glass at ultrahigh pressures journal September 2017
Development of a new state-of-the-art beamline optimized for monochromatic single-crystal and powder X-ray diffraction under extreme conditions at the ESRF journal August 2005
SiO 2 Glass Density to Lower-Mantle Pressures journal November 2017
Density of magmas at depth journal July 2016
Ultrafast visualization of crystallization and grain growth in shock-compressed SiO2 journal September 2015
Magma Oceans in the Inner Solar System journal May 2012
Fast Parallel Algorithms for Short-Range Molecular Dynamics journal March 1995
Melting in super-earths journal April 2014
Sixfold-Coordinated Amorphous Polymorph of SiO 2 under High Pressure journal December 2008
Evidence for a Phase Transition in Silicate Melt at Extreme Pressure and Temperature Conditions journal February 2012
Pressure-driven transformation of the ordering in amorphous network-forming materials journal June 2016
High pressure x-ray diffraction measurements on Mg2SiO4 glass journal July 2011
Quantitative structure factor and density measurements of high-pressure fluids in diamond anvil cells by x-ray diffraction: Argon and water journal April 2002
High-pressure–high-temperature equation of state of KCl and KBr journal June 2012
Density measurements and structural properties of liquid and amorphous metals under high pressure journal November 2013
Structural investigation of glasses along the MgSiO3–CaSiO3 join: Diffraction studies journal December 2013
Coordination changes in magnesium silicate glasses journal July 2004
Evidence of different structures in magnesium silicate liquids: coordination changes in forsterite- to enstatite-composition glasses journal December 2004
High-pressure x-ray diffraction of SiO 2 glass journal August 1992
Shock-compressed MgSiO 3 glass, enstatite, olivine, and quartz: Optical emission, temperatures, and melting : SHOCK TEMPERATURE AND MELTING OF SILICATES journal May 2004
Melting of Peridotite to 140 Gigapascals journal September 2010
The MgSiO 3 system at high pressure: Thermodynamic properties of perovskite, postperovskite, and melt from global inversion of shock and static compression data : MgSiO journal January 2009
A sequential algorithm for testing climate regime shifts: ALGORITHM FOR TESTING REGIME SHIFTS journal May 2004
Core formation, mantle differentiation and core-mantle interaction within Earth and the terrestrial planets journal June 2019
Compositional dependence of structural transition pressures in amorphous phases with mantle-related compositions journal June 2009
Solving Controversies on the Iron Phase Diagram Under High Pressure journal October 2018
The core–mantle boundary layer and deep Earth dynamics journal April 1998
Discovery of bridgmanite, the most abundant mineral in Earth, in a shocked meteorite journal November 2014
Measurement of melting temperatures of some minerals under lower mantle pressures journal September 1995
Time-resolved diffraction of shock-released SiO2 and diaplectic glass formation journal November 2017
First-principles molecular dynamics simulations of MgSiO3 glass: Structure, density, and elasticity at high pressure journal July 2014
Pressure-induced structural change in MgSiO 3 glass at pressures near the Earth’s core–mantle boundary journal February 2018
Fate of MgSiO 3 melts at core–mantle boundary conditions journal November 2015
Comparative study of quasiharmonic lattice dynamics, molecular dynamics and Debye model applied to MgSiO3 perovskite journal December 2000
Structure and Freezing of MgSiO3 Liquid in Earth's Lower Mantle journal October 2005
High efficiency multichannel collimator for structural studies of liquids and low-Z materials at high pressures and temperatures journal February 2011
Ab initio investigation of a possible liquid–liquid phase transition in MgSiO3 at megabar pressures journal March 2013
Ultra-Low Velocity Zones Near the Core-Mantle Boundary from Broadband PKP Precursors journal March 1998
Evidence of denser MgSiO3 glass above 133 gigapascal (GPa) and implications for remnants of ultradense silicate melt from a deep magma ocean journal October 2011
Use of a multichannel collimator for structural investigation of low-Z dense liquids in a diamond anvil cell: Validation on fluid H 2 up to 5 GPa journal June 2013
Seismic evidence for a global low-velocity layer within the Earth’s upper mantle journal September 2010
Elasticity and pressure-induced structural changes in vitreous MgSiO3-enstatite to lower mantle pressures journal July 2010
Continent-sized anomalous zones with low seismic velocity at the base of Earth's mantle journal June 2016
A crystallizing dense magma ocean at the base of the Earth’s mantle journal December 2007
Shock-induced melting of MgSiO 3 perovskite and implications for melts in Earth's lowermost mantle journal January 2004

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