About Pascal Richet

The 2008 Urey Award was awarded to Pascal Richet, IPGP France

Pascal Richet has been mainly interested in high temperature and pressure physical properties of minerals and melts to understand how their complex interplay has determined the Earth’s activity, at all length scales, throughout geological history.

He has for instance devised new methods and concepts to study the effects of water on melt properties, to investigate melting and crystallization reactions, or to establish connexions between thermodynamic, transport and structural properties of Earth materials.

To share his interest in these matters he initiated in 1991 the Silicate Melt Workshop series. In addition to papers in specialized journals, he has published a treatise, The Physical Basis of Thermodynamics, a research book, Silicate Glasses and Melts, Structure and Properties (with B.O. Mysen), as well as a number of articles and other books dealing with popularization, cultural aspects of science, or history and philosophy of science (e.g., in English, A natural History of Time).

Selected publications include:

Richet P., Y. Bottinga and M. Javoy
A review of hydrogen, carbon, nitrogen, oxygen, sulphur, and chlorine stable isotope fractionation among gaseous molecules.
Ann. Rev. Earth Planet. Sci., 5, 65-110 (1977).

Richet P.
Viscosity and configurational entropy of silicate melts.
Geochim. Cosmochim. Acta, 48, 471-483 (1984).

Richet P. and Y. Bottinga
Thermochemical properties of silicate glasses and liquids: A review.
Rev. Geophys., 24, 1-25 (1986).

Richet P.
Superheating, melting and vitrification through decompression of high-pressure minerals.
Nature, 331, 56-58 (1988).

Richet P. and D.R. Neuville
Thermodynamics of silicate melts: Configurational properties.
Adv. Phys. Geochem., 10, 132-161 (1992).

Richet P., R.A. Robie and B.S. Hemingway
Entropy and structure of silicate glasses and melts.
Geochim. Cosmochim. Acta, 57, 2751-2766 (1993).

Richet P., J. Ingrin, B.O. Mysen, P. Courtial and Ph. Gillet
Premelting of minerals: An experimental study.
Earth Planet. Sci. Lett., 121, 589-600 (1994).

Lejeune A.M. and Richet P.
Rheology of crystal-bearing silicate melts: An experimental study at high viscosities.
J. Geophys. Res., 100, 4215-4229 (1995).

Richet P., A.M. Lejeune, F. Holtz and J. Roux
Water and the viscosity of andesite melts.
Chem. Geol., 128, 185-197 (1996).

Richet P. and Ph. Gillet
Pressure-induced amorphization of minerals.
Eur. J. Mineral., 5, 907-933 (1997).

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