Combination of Methyl from Methane Early Cracking: A Possible Mechanism for Carbon Isotopic Reversal of Overmature Natural Gas

<div>Variation in <i>δ</i><sup>13</sup>C<sub>1</sub> and <i>δ</i><sup>13</sup>C<sub>2</sub> with increasing temperature.</div>

Geofluids

Figure 3: Combination of Methyl from Methane Early Cracking: A Possible Mechanism for Carbon Isotopic Reversal of Overmature Natural Gas 