Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Ultrasonic Acoustic Velocities During Partial Melting of a Mantle Peridotite KLB-1

Journal Article · · Journal of Geophysical Research. Solid Earth
DOI:https://doi.org/10.1002/2017JB014753· OSTI ID:1462562

Knowledge of the elastic properties of partially molten rocks is crucial for understanding low-velocity regions in the interior of the Earth. Models of fluid and solid mixtures have demonstrated that significant decreases in seismic velocity are possible with small amounts of melt, but there is very little available data for testing these models, particularly with both P and S waves for mantle compositions. We report ultrasonic measurements of P and S velocities on a partially molten KLB-1 sample at mantle conditions using a multi-anvil device at a synchrotron facility. The P, S, and bulk sound velocities decrease as melting occurs. We find that the quantity, ∂lnVS/∂lnVB (where VB is the bulk sound velocity) is lower than mechanical models estimate. Instead, our data, as well as previous data in the literature, are consistent with a dynamic melting model in which melting and solidification interact with the stress field of the acoustic wave.

Research Organization:
Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1462562
Journal Information:
Journal of Geophysical Research. Solid Earth, Journal Name: Journal of Geophysical Research. Solid Earth Journal Issue: 2 Vol. 123; ISSN 2169-9313
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
ENGLISH

References (44)

Relaxation of the bulk modulus in partially molten dunite?: Bulk Modulus Relaxation journal November 2016
Chemical mass transfer in magmatic processes IV. A revised and internally consistent thermodynamic model for the interpolation and extrapolation of liquid-solid equilibria in magmatic systems at elevated temperatures and pressures journal March 1995
Grain boundary wetness of partially molten dunite journal April 2016
Chemical mass transfer in magmatic processes IV. A revised and internally consistent thermodynamic model for the interpolation and extrapolation of liquid-solid equilibria in magmatic systems at elevated temperatures and pressures journal March 1995
A close look at dihedral angles and melt geometry in olivine-basalt aggregates: a TEM study journal February 1998
Numerical models on the influence of partial melt on elastic, anelastic and electric properties of rocks. Part I: elasticity and anelasticity journal December 1985
Influence of melt on the creep behavior of olivine–basalt aggregates under hydrous conditions journal August 2002
Low S velocity atop the 410-km discontinuity and mantle plumes journal October 2007
Upper mantle SH- and P-velocity structures and compositional models beneath southern Africa journal March 2008
Contrasting viscoelastic behavior of melt-free and melt-bearing olivine: Implications for the nature of grain-boundary sliding journal December 2006
Effect of dynamic melting on acoustic velocities in a partially molten peridotite journal September 2013
Seismic structure and ultra-low velocity zones at the base of the Earth’s mantle beneath Southeast Asia journal August 2014
Kinetics of melting in peridotite from volume strain measurements journal September 2015
New experimental observations on the anhydrous solidus for peridotite KLB-1: DATA BRIEF journal November 2000
Partial melting experiments on a MORB-like pyroxenite between 2 and 3 GPa: Constraints on the presence of pyroxenite in basalt source regions from solidus location and melting rate: PARTIAL MELTING OF MORB-LIKE PYROXENITE journal February 2003
Upper mantle seismic wave velocity: Effects of realistic partial melt geometries journal May 2000
Acoustic properties of partially molten media studied on a simple binary system with a controllable dihedral angle journal July 2000
The pMELTS: A revision of MELTS for improved calculation of phase relations and major element partitioning related to partial melting of the mantle to 3 GPa: pMELTS, A REVISION OF MELTS journal May 2002
Shear wave attenuation and dispersion in melt-bearing olivine polycrystals: 1. Specimen fabrication and mechanical testing: ATTENUATION IN MELT-BEARING OLIVINE I journal June 2004
Shear wave attenuation and dispersion in melt-bearing olivine polycrystals: 2. Microstructural interpretation and seismological implications: ATTENUATION IN MELT-BEARING OLIVINE 2 journal June 2004
Adiabat_1ph: A new public front-end to the MELTS, pMELTS, and pHMELTS models: ADIABAT_1PH FRONT-END journal February 2005
Geometry and P and S velocity structure of the “African Anomaly” journal January 2007
Correction to “Geometry and P and S velocity structure of the “African Anomaly”” journal January 2007
Structural features and shear-velocity structure of the “Pacific Anomaly” journal January 2009
Deformation of fine-grained aggregates of olivine plus melt at high temperatures and pressures journal April 1993
Melting experiments on anhydrous peridotite KLB-1 from 5.0 to 22.5 GPa journal September 1994
Melting experiments on anhydrous peridotite KLB-1: Compositions of magmas in the upper mantle and transition zone journal April 1996
Thermal structure of the low velocity zone derived from laboratory and seismic investigations journal October 1988
The effect of temperature and partial melting on velocity and attenuation in a Simple Binary System journal September 1968
New analysis of attenuation in partially melted rock journal August 1969
Melt squirt in the asthenosphere journal April 1975
Viscoelastic properties of fluid-saturated cracked solids journal December 1977
Melting of a dry peridotite KLB-1 up to 14 GPa: Implications on the Origin of peridotitic upper mantle journal January 1986
The use of laboratory velocity data for estimating temperature and partial melt fraction in the low-velocity zone: Comparison with heat flow and electrical conductivity studies journal January 1989
Origin of mantle peridotite: Constraints from melting experiments to 16.5 GPa journal January 1990
The velocity of compressional waves in rocks to 10 kilobars: 1. journal April 1960
Axial temperature gradient and stress measurements in the deformation-DIA cell using alumina pistons journal April 2013
DIASCoPE: Directly integrated acoustic system combined with pressure experiments—A new method for fast acoustic velocity measurements at high pressure journal March 2017
Precise sound velocity measurements on solids and liquids at high pressure and high temperature with direct length measurement. journal April 2009
Experimental evidence supports mantle partial melting in the asthenosphere journal May 2016
Melting Temperature and Partial Melt Chemistry of H2O-Saturated Mantle Peridotite to 11 Gigapascals journal April 1997
Melting experiments on lherzolite KLB-1 under hydrous conditions and generation of high-magnesian andesitic melts journal January 1997
Rheology of Partially Molten Mantle Rocks journal May 1996
Algorithmic modifications extending MELTS to calculate subsolidus phase relations journal October 1998

Cited By (2)

Note: Elastic wave velocity measurement using ultrasonic system with two-reflectors journal August 2018
Acoustic and Microstructural Properties of Partially Molten Samples in the Ice–Ammonia System journal July 2019

Similar Records

Elastic wave velocities of peridotite KLB‐1 at mantle pressures and implications for mantle velocity modeling
Journal Article · Tue May 12 00:00:00 EDT 2015 · Geophysical Research Letters · OSTI ID:1402355

Ultrasonic Velocity of Diopside Liquid at High Pressure and Temperature: Constraints on Velocity Reduction in the Upper Mantle Due to Partial Melts
Journal Article · Sat Oct 13 00:00:00 EDT 2018 · Journal of Geophysical Research. Solid Earth · OSTI ID:1483881

High-pressure elastic properties of dolomite melt supporting carbonate-induced melting in deep upper mantle
Journal Article · Mon Jul 20 00:00:00 EDT 2020 · Proceedings of the National Academy of Sciences of the United States of America · OSTI ID:1660986