• Kripa Shanker Singh

A method for estimating temperature dependence of volume thermal expansion of geophysical minerals at high pressures has been developed by modifying the formulation originally due to Suzuki [5]. The formulation modified in the present study becomes applicable upto very high temperatures close to the melting temperatures of the minerals under high pressures. The method has been applied to predict volumes of pyrope, MgSiO3 and CaSiO3 perovskites at simultaneously elevated pressures and temperatures upto their melting temperatures. Values of pressure P, isothermal bulk modulus KT and its pressure derivative dKT/dP at different compressions have been used those derived from the Rydberg-Vinet [9] equation of state. It has been found that the rate of increase of volume thermal expansion with temperature decreases at high pressures. This has been correlated with the melting temperatures of the minerals under high pressures.

Analysis of temperature dependence of volume thermal expansion of geophysical minerals at high pressure

"Analysis of temperature dependence of volume thermal expansion of geophysical minerals at high pressure", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.1-15, December-2018, Available :http://www.jetir.org/papers/JETIR1812E28.pdf

"Analysis of temperature dependence of volume thermal expansion of geophysical minerals at high pressure", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp1-15, December-2018, Available at : http://www.jetir.org/papers/JETIR1812E28.pdf