岩石的热惯量研究

本文阐述了热惯量的物理意义及其在地质遥感中的作用。在测得２３种岩石热物理性质的有关参数──热传导率、热容量和密度的基础上，计算并列表给出了岩石的热惯量值和热扩散系数等基础数据。文中分析讨论了沉积岩、变质岩和岩浆岩岩石的热惯量变化由高到低的初步规律。取得了碳酸盐岩和砂岩类等沉积岩和沉积浅变质岩的热惯量差异的结果，指出了它们的易区分性；也指出了中－酸性、碱性岩浆岩之间的热惯量值差异较小，不易区分。

Study on Thermal Inertia of Rocks

he paper describes the physical significance of thermal inertia and itsrole in geological remote sensing.Parameters related to thermal physical propertieshave been measured for 23 types of rocks,including thermal conductivity,densityand thermal capacity.Based on this measurement,thermal inertia values and thermaldiffusion coefficients of rocks are calculated and presented in the tables.The primaryregularity that thermal inertia decreases from sedimentary,metamorphic to magma-tic rocks is discussed.Thermal inertia differences between sedimentery rocks,suchas carbonate rocks and sandstone,and sedimentary epimetamorphic rocks are obta-ined,and easy to be discriminated.Meanwhile,thermal inertia differences betweenmid-acidic and alkaline rocks are small and difficult to be distinguished.