Additional Features of Our Burial and Thermal Modeling

Within subsiding continental basins, groundwater can be induced by sediment compaction (pressure water) and by driving forces from topographic relief or from variations in fluid density. The intensive water flow can disturb the thermal profile and change the time-temperature history of buried source rocks. Maximal rate of pressure-water expulsion (Rpwe) can be estimated relatively easily using Eqs. 6.i and 6.2 for the case of one-dimensional consolidation of homogeneous sediments on immobile basement  

The porosities of lithologic mixtures are calculated by the expression (Doligez et al. 1986) 

The coefficient Al (temperature parameter of matrix heat conductivity) in Eq. 6.5 is determined using the values Km and Kmi at a temperature of too °C  

The thermal effect of latent heat derived as a consequence of melting or solidification of peridotite rocks is considered as follows. First, the fraction of melted rock,/, is assumed to increase linearly with temperature, / within the interval Ts T Tl (Carlslaw and Jaeger 1959)  

Chapter 6 Burial History and Kinetic Modeling for Hydrocarbon Generation 

---