Vosteen, H.-D., & Schellschmidt, R. (2003). Influence of temperature on thermal conductivity, thermal capacity and thermal diffusivity for different types of rock. Physics and Chemistry of the Earth, Parts A/B/C, 28(9-11), 499-509.
https://doi.org/10.1016/S1474-7065(03)00069-X
References are available as [a bib file](./references.bib).