Abstract
IT is customary to invoke radiative thermal conductivity as a mechanism for efficiently removing heat from the Earth's interior1. Clark2 derived the formula 
for radiative thermal conductivity in planetary conditions, where n is the refractive index, B is the blackbody function, γ is the radiation wavelength, α is the absorption coefficient and s is the backscattering coefficient. He used this relationship to estimate the radiative conductivity for a number of minerals by measuring α at room temperature and neglecting s (ref. 3).
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References
MacDonald, G. J. F., J. Geophys. Res., 64, 1967 (1959).
Clark, jun., S. P., Trans. Amer. Geophys. Un., 38, 931 (1957).
Clark, jun., S. P., Amer. Mineral., 42, 732 (1957).
McConnell, jun., R. K., McClaine, L. A., Lee, D. W., Aronson, J. R., and Allen, R. V., Rev. Geophys., 5, 121 (1967).
Aronson, J. R., Emslie, A. G., McConnell, jun., R. K., Eckroad, S. W., and von Thüna, P. C., Trans. Amer. Geophys. Un., 48, 211 (1967).
Aronson, J. R., Emslie, A. G., McConnell, jun., R. K., Eckroad, S. W., and von Thüna, P. C., Rep. NASA Manned Spacecraft Center (Contract NAS9–5840) (1967).
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ARONSON, J., ECKROAD, S., EMSLIE, A. et al. Radiative Thermal Conductivity in Planetary Interiors. Nature 216, 1096–1097 (1967). https://doi.org/10.1038/2161096a0
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DOI: https://doi.org/10.1038/2161096a0
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