A Review and Evaluation of Specific Heat Capacities of Rocks, Minerals, and Subsurface Fluids. Part 1: Minerals and Nonporous Rocks

Frictional Instabilities and Carbonation of Basalts Triggered by Injection of Pressurized H2O‐ and CO2‐ Rich Fluids

“…This is in good agreement with the bulk temperature increase estimated along the slipping zone at the main frictional instability. If the heat production is (Beeler et al, 2008; Lachenbruch & Sass, 1980) $\mathrm{italicdQ}=\mathrm{normal\tau }V\mathrm{italicdt}$an estimate of the bulk temperature increase in the slipping zone during the experiments can be computed numerically using the approximation (Carslaw & Jaeger, 1959; Nielsen et al, 2008; Figure S6) $T\left(t\right)=\frac{1}{\rho ·C_p·\sqrt{\mathrm{\kappa \pi }}}·{\int }_0^t\frac{1}{2}·\frac{Q}{\sqrt{t-t^{\prime }}}\mathrm{italicdt}$(with, for basalts, thermal diffusivity κ = 0.012 cm 2 /s; Hanley et al, 1978), specific heat capacity Cp = 898 J · kg −1  · K −1 (Waples & Waples, 2004), and density ρ = 2,960 kg/m 3 ). The numerical solution revealed indeed the achievement of bulk temperatures of several hundred degrees Celsius once the main instability was triggered, as shown in Figure S6.…”

Assessment of the resource base for engineered geothermal systems in Great Britain

“…As the composition of the British basement to a depth of 10,000 m is largely unknown, single values of density and specific heat were estimated. These were taken as the mean of the 40 densities and specific heats for metamorphic and intrusive rocks listed by Waples and Waples (2004), which resulted in an estimated basement density of 2800 kg m −3 and basement specific heat of 887 J kg…”

Water Usage for In-Situ Oil Shale Retorting ? A Systems Dynamics Model

“…Data on the specific heat for a wide range of rocks and minerals was analyzed by Waples and Waples (2004). These authors found that the specific heat data as a function of temperature (ºC) were fit well by normalizing the data to the specific heat at 200 ºC.…”