Open AccessThermodynamical Gruneisen's function for pure iron at the Earth's core conditions
Author(s) -
Fazio D.,
Mulargia F.,
Boschi E.
Publication year - 1978
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1978.tb03757.x
Subject(s) - grüneisen parameter , earth (classical element) , core (optical fiber) , inner core , thermodynamics , function (biology) , volume (thermodynamics) , physics , thermal , materials science , geophysics , mathematical physics , optics , biology , evolutionary biology
summary . Calculations of the thermodynamical Gruneisen's gamma as a function of temperature and volume for iron are presented. The ranges of the relevant pressures and temperatures extend to those corresponding to the Earth's core. The various crystal structures of iron and several kinds of inter‐molecular potential functions are considered. It is found that it is not possible to describe the Gruneisen's gamma for iron with the accuracy needed for an assessment of the thermal state of the core mainly because the available experimental data do not allow a definite choice among the possible potential functions.