10 research outputs found
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Physical characterization of magmatic liquids
Long-range goals of this research project are: (1) Characterization of seismic velocity and attenuation (V{sub p}, V{sub S}, Q{sub p}{sup {minus}1}, Q{sup S}{sup {minus}1}) and electrical properties of selected Hawaiian and related rocks under appropriate controlled environments of pressure, temperature and volatile/fluid content; and, (2) Characterization of the elastic, viscoelastic and thermodynamic properties (V{sub p}, V{sub S}, Q{sub P}{sup {minus}1}, Q{sub S}{sup {minus}1}, viscosity and compressibility) of molten basalts, picrites and komatites, and related silicate melts to {approximately} 1600{degrees}C using the ultrasonic interferometry method. In addition, the pressure dependences of V{sub p},V{sub S} and bulk modulus will be determined using the Brillouin scattering and diamond- anvil cell techniques
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Physical characterization of magmatic liquids. [Ultrasonic and Brillouin Scattering Studies of Natural and Synthetic Silicates and Oxides]
This report describes a research project that was conducted from August 15, 1985 to February 28, 1992. The project was based on the ultrasonic studies of natural and synthetic silicate melts, and the study of Brillouin scattering of synthetic silicates and oxides. Measurements of the compressional wave velocity and attenuation can be established using the ultrasonic methods. Temperature dependences of silicates can be established by the Brillouin scattering. (MB