Thermoelastic Properties of (Mg,Fe)SiO3 Perovskite

2002 ◽  
Vol 718 ◽  
Author(s):  
Boris Kiefer ◽  
Lars Stixrude
Keyword(s):  
Elastic Wave ◽  
Elastic Properties ◽  
Solid Solutions ◽  
Elastic Constants ◽  
Lower Mantle ◽  
High Pressures ◽  
Thermoelastic Properties ◽  
Wave Velocities ◽  
Lateral Variations ◽  
Iron Bearing

AbstractMagnesium rich (Mg1-x,Fex perovskite is thought to be the most abundant mineral in the earth's lower mantle between 660 km and 2900 km depth. We discuss (mg,Fe) solid solutions and their elastic properties at lower mantle pressures. The diffrences of the elastic constants between the Mg-endmember and the iron bearing perovskite with x=0.25 are used to predict the compositional contribution to lateral variations of elastic wave-velocities at high pressures. These predictions are compared and discussed in the context of seismic observations.

Elastic wave velocities of silica glass at high temperatures and high pressures

2010 ◽  
Vol 107 (12) ◽  
pp. 123530 ◽  
Author(s):  
Ayako Yokoyama ◽  
Masanori Matsui ◽  
Yuji Higo ◽  
Yoshio Kono ◽  
Tetsuo Irifune ◽  
...  
Keyword(s):  
Elastic Wave ◽  
High Temperatures ◽  
Silica Glass ◽  
High Pressures ◽  
Wave Velocities

scholarly journals Elastic wave velocities and Raman shift of MORB glass at high pressures

2008 ◽  
Vol 103 (2) ◽  
pp. 126-130 ◽  
Author(s):  
Yoshio KONO ◽  
Hiroaki OHFUJI ◽  
Yuji HIGO ◽  
Akihiro YAMADA ◽  
Toru INOUE ◽  
...  
Keyword(s):  
Elastic Wave ◽  
High Pressures ◽  
Raman Shift ◽  
Wave Velocities

scholarly journals GEODYNAMICS

GEODYNAMICS ◽  
2011 ◽  
Vol 2(11)2011 (2(11)) ◽  
pp. 251-253
Author(s):  
H. T. Prodaivoda ◽  
◽  
S. A. Vyzhva ◽  
Yu. A. Onanko ◽  
A. P. Onanko ◽  
...  
Keyword(s):  
Elastic Wave ◽  
Elastic Constants ◽  
Elastic Symmetry ◽  
Wave Velocities ◽  
Anisotropy Parameters ◽  
Non Destructive

The elastic constants are appraised sandstones of Volino – Podolskiy region, which testify that elastic symmetry is orthorhombic. The anisotropy parameters of rock-collectors are explored from the ultrasonic results measurements of elastic wave velocities. The method of measurings of anisotropy parameters of elastic wave velocities is offered for non-destructive control of structure of sandstones.

Physical and elastic properties of some khondalites from the Eastern Ghat Belt of Peninsular India

1976 ◽  
Vol 13 (9) ◽  
pp. 1333-1342 ◽  
Author(s):  
B. S. Gogte ◽  
Y. V. Ramana
Keyword(s):  
Elastic Wave ◽  
Manganese Oxide ◽  
Elastic Properties ◽  
Fracture Strength ◽  
Elastic Wave Velocity ◽  
Eastern Ghats ◽  
Peninsular India ◽  
Wave Velocities ◽  
Shear Wave Velocities ◽  
Rock Suite

Khondalites, which form an important rock suite of the Eastern Ghats, are studied for their physical and elastic properties together with their petrology and petrochemistry. Garnetiferous quartzites exhibit compressional and shear wave velocities between 4.9–5.6 km/s and 2–3 km/s; these are higher than garnet sillimanite gneisses, which are between 3.4–5.2 km/s and 1.4–2.6 km/s, respectively. The latter are more anisotropic than the former. Velocity and anisotropy are affected by alteration of garnet and sillimanite in these rocks. The velocities show a decreasing tendency with increasing manganese oxide. Garnetiferous quartzites bear a higher fracture strength than garnet sillimanite gneisses. Elastic wave velocity studies under hydrostatic pres sure to 5 kbar indicate slight changes with increasing pressure; and the absence of kyanite and the presence of cordierite in negligible amounts suggest their formation near the low to intermediate pressure granulite field.

AN EXPERIMENTAL STUDY OF THE ELASTIC PROPERTIES OF ROCKS

Geophysics ◽  
1936 ◽  
Vol 1 (3) ◽  
pp. 347-352 ◽  
Author(s):  
J. M. Ide
Keyword(s):  
Experimental Study ◽  
Young’S Modulus ◽  
Elastic Properties ◽  
Elastic Constants ◽  
Transverse Wave ◽  
Isotropic Medium ◽  
Young's Modulus ◽  
Field Measurements ◽  
Rock Samples ◽  
Wave Velocities

Laboratory determinations of Young’s modulus, rigidity, and compressibility were made on a set of representative rock samples. These measurements are compared with the theoretical relations between the elastic constants of an isotropic medium. Computed longitudinal and transverse wave velocities are compared with direct field measurements by Leet in granite and norite. Agreement is within 5 per cent for norite, and 20 per cent for granite.

ELASTIC WAVE VELOCITIES IN IRON AT HIGH PRESSURES (4.5 TO 18 KBAR)

1963 ◽  
Vol 3 (7) ◽  
pp. 119-120 ◽  
Author(s):  
D. S. Hughes ◽  
Teruo Nishitake ◽  
J. P. Doty
Keyword(s):  
Elastic Wave ◽  
High Pressures ◽  
Wave Velocities
Sign in / Sign up

Export Citation Format

Share Document