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Elastic properties of Earth materials.

Speziale, Sergio.

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Elastic properties of Earth materials.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Elastic properties of Earth materials./
作者:	Speziale, Sergio.
面頁冊數:	283 p.
附註:	Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 4832.
Contained By:	Dissertation Abstracts International64-10B.
標題:	Geophysics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3107881

Elastic properties of Earth materials.
Speziale, Sergio.

Elastic properties of Earth materials. - 283 p.

Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 4832.

Thesis (Ph.D.)--Princeton University, 2003.

The study of the high-pressure elastic properties of minerals is crucial to construct reliable global models of the Earth structure and dynamics, consistent both with geophysical and geochemical evidence.Subjects--Topical Terms:

535228
Geophysics.

Elastic properties of Earth materials.
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245 1 0 $a Elastic properties of Earth materials.
300 $a 283 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 4832.
500 $a Adviser: Thomas S. Duffy.
502 $a Thesis (Ph.D.)--Princeton University, 2003.
520 $a The study of the high-pressure elastic properties of minerals is crucial to construct reliable global models of the Earth structure and dynamics, consistent both with geophysical and geochemical evidence.
520 $a By combining new high-pressure X-ray diffraction of MgO (periclase) performed in quasi-hydrostatic conditions with existing experimental data, I have determined parameters for the thermal equation of state of MgO that correctly describe the high-pressure and high-temperature data to 203 GPa and 3663 K.
520 $a I have measured the elastic tensor of CaF2 (fluorite) to 9.3 GPa and I have determined an independent density scale for this important secondary standard in moderate high-pressure X-ray diffraction studies. Comparing the Brillouin scale and the existing X-ray diffraction scale I could quantitatively evaluate 1% the accuracy of fluorite pressure scale.
520 $a I have studied the elasticity of fayalite, Fe2SiO4, to 12.1 GPa at ambient temperature. The results demonstrate that Fe-Mg substitution increases the bulk modulus of olivine and its pressure dependence; it reduces the shear modulus but has no effect on its pressure dependence. I was able to better quantify the compositional dependence of the elastic moduli of olivine, which can be responsible for seismic velocity anomalies in Fe-enriched regions of the upper mantle.
520 $a I have tested the reliability of radial X-ray diffraction as a method to determine elastic properties of minerals at high pressures by combining radial X-ray diffraction to 65 GPa and Brillouin spectroscopy of CaO to 25 GPa. I determined the elastic tensor and the high-pressure yield strength of CaO. The X-ray elastic constants are in excellent agreement with the spectroscopic ones up to 25 GPa. Discrepancies at higher pressure can be reconciled within the framework of the lattice strain theory.
520 $a I have investigated the elasticity of tetragonal crystals of lysozyme and the effect of relative humidity (to 68%) by Brillouin scattering at ambient pressure and temperature. I interpreted the results by modeling tetragonal lysozyme as a composite made up of rigid molecular units linked by mainly electrostatic and van der Waals interactions weakened by the presence of intermolecular bulk water.
590 $a School code: 0181.
650 4 $a Geophysics. $3 535228
650 4 $a Mineralogy. $3 516743
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790 1 0 $a Duffy, Thomas S., $e advisor
790 $a 0181
791 $a Ph.D.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3107881