Figure 7From: Metathesis in the generation of low-temperature gas in marine shalesThe composition of methane, ethane, and propane over time and its relation to equilibrium, Mowry shale, 11 hours at 100°C. Q = [(C1)*(C3)/(C2)2], % vol in C1-C3. The log Q curve (the right y axis) is superimposed on the three % vol curves (left y axis).Back to article page