抄録
Temperature distributions within the mantle have been calculated by the modern theory of solid, on the assumptions that the thermal state is nearly stationary at present and there is only a conductive heat flow within the mantle. The main results obtained are as follows. Under the above assumptions, temperature distributions with γG less than 2.25 cannot be obtained in the B-layer (413-1000km). The ternperature gradient there is nearly constant and increases gradually with depth in the D-layer. (1000-2898 km).
Notations. ρ: density, ρ0: density at p=0 and T=0, p: pressure, T: temperature, r:distance from the earth's centre, g: acceleration of gravity, KT: isothermal bulk modulus, KS: adiabatic bulk modulus, α: coefficient of thermal expansion, γG: GRUNEISEN'S parameter, φ: KS/ρ, υp: velocity of P-wave, υs: velocity of 8-wave, A: mean atomic weight, N: LOSCHMIDT'S number, λ, μ, m, n, l: LAME'S constants, K: thermal conductivity, P: rate of generation of heat per unit volume, Cυ: specific heat at constant volume, Cp: specrfic heat at constant pressure, δ: constant relating to crystal structure.
