skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Sound velocities of aluminum-bearing stishovite in the mantle transition zone

Journal Article · · Geophysical Research Letters
DOI:https://doi.org/10.1002/2016GL068377· OSTI ID:1256356
 [1];  [2];  [3];  [4];  [5];  [6];  [5];  [7];  [1];  [8];  [8]
  1. Ehime Univ., Matsuyama (Japan); Tokyo Inst. of Technology, Tokyo (Japan)
  2. Carnegie Inst. of Washington, Argonne, IL (United States)
  3. Univ. of Chicago, IL (United States)
  4. Ehime Univ., Matsuyama (Japan); Univ. of Shiga Prefecture, Hikone (Japan)
  5. Ehime Univ., Matsuyama (Japan)
  6. Univ. of Chicago, IL (United States); Case Western Reserve Univ., Cleveland, OH (United States)
  7. Japan Synchrotron Radiation Inst., Hyogo (Japan)
  8. Hokkaido Univ., Sapporo (Japan)

The elasticity of Al–bearing stishovite with 1.0, 3.3, and 4.5 wt % Al2O3 was investigated in the multianvil apparatus at high pressures and temperatures up to 21 GPa and 1700 K, by ultrasonic interferometry in conjunction with in situ X–ray techniques. The moduli KS and G are found to decrease with increasing Al2O3 content, while their pressure and temperature derivatives do not change in a significant manner for 1.0 and 3.3 wt % Al2O3. The temperature derivatives for 4.5 wt % Al2O3, however, are larger, which may result from a change in the Al substitution mechanism at high Al2O3 content. It is shown that acoustic velocities of any mid–ocean ridge basalt are lower by –0.4% than those calculated from pure stishovite data. Furthermore, velocity perturbations up to –3.4% (VP) and –4.2% (VS) in subducted slabs are explained by the combination of the thermal equilibration (ΔT ~ 600 K) of the slab and Al enrichment in stishovite.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE; National Science Foundation (NSF); Grant‐in‐Aid for Young Scientist
Grant/Contract Number:
AC02‐06CH11357; FG02‐94ER14466; EAR‐1128799; EAR‐1361276; 23740339
OSTI ID:
1256356
Journal Information:
Geophysical Research Letters, Vol. 43, Issue 9; ISSN 0094-8276
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

References (58)

Elastic wave velocity of polycrystalline Mj80Py20 garnet to 21 GPa and 2,000 K journal October 2014
Equation of state and post-stishovite transformation of Al-bearing silica up to 100GPa and 3000K journal May 2009
Pressure and temperature dependence of elastic wave velocity of MgSiO3 perovskite and the composition of the lower mantle journal July 2005
High concentration of water in stishovite in the MORB system journal January 2002
Ab initio elasticity of three high-pressure polymorphs of silica journal December 1997
Sound velocity of Al2O3 to 616 kbar journal December 1994
Decomposition of kyanite and solubility of Al2O3 in stishovite at high pressure and high temperature conditions journal November 2006
Equation of state of Al-bearing stishovite to 40 GPa at 300 K journal October 2002
Elasticity and sound velocities of polycrystalline Mg 3 Al 2 (SiO 4 ) 3 garnet up to 20 GPa and 1700 K journal July 2012
Explicit correction of ultrasonically determined elastic wave velocities for transducer-bond phase shifts journal January 1981
Homogeneity and constitution of the earth's lower mantle and outer core journal August 1975
Thermal equation of state of majorite with MORB composition journal January 2005
The second continent: Existence of granitic continental materials around the bottom of the mantle transition zone journal January 2013
The equation of state of Al,H-bearing SiO2 stishovite to 58 GPa journal September 2005
P⿢V⿢T relation of MgO derived by simultaneous elastic wave velocity and in situ X-ray measurements: A new pressure scale for the mantle transition region journal November 2010
The post-stishovite phase transition in hydrous alumina-bearing SiO2 in the lower mantle of the earth journal August 2007
High temperature stability limit of phase egg, AlSiO 3 (OH) journal October 1999
Phase transformations in a harzburgite composition to 26 GPa: implications for dynamical behaviour of the subducting slab journal December 1987
Modern techniques in measuring elasticity of Earth materials at high pressure and high temperature using ultrasonic interferometry in conjunction with synchrotron X-radiation in multi-anvil apparatus journal June 2004
Sound velocity of Fe–S liquids at high pressure: Implications for the Moon's molten outer core journal June 2014
Hydrogen in Stishovite, with Implications for Mantle Water Content journal August 1993
Stability limits of hydrous minerals in sediment and mid-ocean ridge basalt compositions: Implications for water transport in subduction zones journal August 1998
Supply rate of continental materials to the deep mantle through subduction channels journal April 2013
Simultaneous structure and elastic wave velocity measurement of SiO 2 glass at high pressures and high temperatures in a Paris-Edinburgh cell journal March 2012
Phase relations and equation of state of a natural MORB: Implications for the density profile of subducted oceanic crust in the Earth's lower mantle journal January 2010
Multiple seismic discontinuities near the base of the transition zone in the Earth's mantle journal June 2000
P - V - T equation of state of stishovite up to mid-lower mantle conditions journal June 2012
Subducted slabs stagnant above, penetrating through, and trapped below the 660 km discontinuity: SUBDUCTED SLABS IN THE TRANSITION ZONE journal November 2013
Stagnant slabs in the upper and lower mantle transition region journal August 2001
High-pressure phase transitions and subduction behavior of continental crust at pressure–temperature conditions up to the upper part of the lower mantle journal December 2012
EXPGUI , a graphical user interface for GSAS journal April 2001
Effect of Al3+ and H+ on the elastic properties of stishovite journal July 2007
Single-crystal elasticity of stishovite: New experimental data obtained using high-frequency resonant ultrasound spectroscopy and a Gingham check structure model journal January 2012
Subduction of continental crust and terrigenous and pelagic sediments: an experimental study journal September 1994
Elasticity of stishovite and acoustic mode softening under high pressure by Brillouin scattering journal February 2009
On the mechanisms for H and Al incorporation in stishovite journal October 2006
The ups and downs of sediments journal January 2008
Aluminum incorporation in stishovite journal January 2006
Water in the Earth's upper mantle journal July 1992
The global range of subduction zone thermal models journal November 2010
Elasticity of stishovite at high pressure journal August 1996
Change in D/H ratio, water content and color during dehydration of hornblende. journal January 1998
Thermodynamic parameters in the Earth as determined from seismic profiles journal September 1981
Mineral chemistry and density of subducted basaltic crust at lower-mantle pressures journal December 1994
Patterns in the hydrogen and trace element compositions of mantle olivines journal August 1997
Multiple transition zone seismic discontinuities and low velocity layers below western United States: SEISMIC DISCONTINUITIES BELOW WESTERN U.S. journal May 2013
Equation of state of stishovite to lower mantle pressures journal February 2003
Phase transition and density of subducted MORB crust in the lower mantle journal August 2005
Lost primordial continents journal December 2009
Ab-initio structure determination of LiSbWO6 by X-ray powder diffraction journal March 1988
Phase transformations in subducted oceanic crust and buoyancy relationships at depths of 600–800 km in the mantle journal May 1993
First-principles prediction of the P - V - T equation of state of gold and the 660-km discontinuity in Earth's mantle : FIRST-PRINCIPLES PREDICTION OF EQUATION OF STATE OF GOLD journal October 2003
Preliminary reference Earth model journal June 1981
High hydrogen solubility in Al-rich stishovite and water transport in the lower mantle journal October 2007
Sound velocities of majorite garnet and the composition of the mantle transition region journal February 2008
Pressure and temperature dependences of elastic properties of grossular garnet up to 17 GPa and 1 650 K journal October 2010
Sound velocities of MORB and absence of a basaltic layer in the mantle transition region journal December 2012
Subduction recycling of continental sediments and the origin of geochemically enriched reservoirs in the deep mantle journal July 2008

Cited By (1)

DIASCoPE: Directly integrated acoustic system combined with pressure experiments—A new method for fast acoustic velocity measurements at high pressure journal March 2017

Similar Records

Thermal Equations of State of Magnesite: Implication for the Complex Mid‐Lower Mantle Seismic Scatterers
Journal Article · Thu Feb 01 00:00:00 EST 2024 · Journal of Geophysical Research. Solid Earth · OSTI ID:1256356

The Water-Fe-Pressure dependent single-crystal elastic properties of wadsleyite: Implications for the seismic anisotropy in the upper Mantle Transition Zone
Journal Article · Thu Apr 22 00:00:00 EDT 2021 · Earth and Planetary Science Letters · OSTI ID:1256356

Hydrous SiO2 in subducted oceanic crust and H2O transport to the core-mantle boundary
Journal Article · Thu Jul 14 00:00:00 EDT 2022 · Earth and Planetary Science Letters · OSTI ID:1256356