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Table 1 Light hydrocarbon data taken from Whiticar and Snowdon.[2] δ13C values are averages of multiple analyses, δ13C [C6] and δ13C [C7] (the last two columns) were calculated from eqn. (2) and eqn. (3), respectively with coefficients a, b and c calculated from the respective C6 concentrations normalized to 1 and coefficients d, e, and f calculated from the respective C7 concentrations normalized to 1. The amount of 2-MP (in %) was taken from column five of Whiticar–Snowdon's Table 3 labeled 3DMC4 incorrectly. Six oils in Whiticar–Snowdon's set of 42 oils were excluded from this set: Brazeau PA was excluded because of possible thermochemical sulfate reduction (TSR), Fusilier was not included because of low n-alkanes and thus possible biodegradation. Four other oils were excluded because they did not contain the full suite of data required to calculate δ13C [C6] and δ13C [C7]: Brazeau River F, Chester, Foothills 8, and Manyberries.

From: Carbon isotopic evidence for the catalytic origin of light hydrocarbons

  2MP (%) 3MP (%) nC6 (%) δ13C 2MP δ13C 3MP δ13C n C6 2MH (%) 3MH (%) nC7 (%) δ13C 2MH δ13C 3MH δ13C nC7 δ13C [C6] δ13C [C7]
Blueberry 5.48 3.89 4.13 -28.3 -27.45 -28.1 8.09 7.08 3.42 -26.65 -27.9 -28.9 -27.9939 -27.5400
Bonanza 6.27 4.56 4.94 -29.03 -29.4 -30 3.3 5.67 2.86 -28.9 -29.47 -30.8 -29.4408 -29.6325
Brazeau C 4.49 3.29 3.26 -27.9 -25.7 -29.7 2.53 4.16 2.3 -26.6 -26.8 -30.5 -27.7759 -27.6903
Brazeau D 1.67 1.28 3.49 -26.8 -25 -29 3.25 4.3 10.09 -26.2 -26.8 -29.9 -27.6345 -28.4626
Brazeau M 4.72 3.28 2.44 -24.6 -24.25 -26.5 5.52 4.58 1.45 -24.2 -25.3 -27.2 -24.9341 -25.0128
Brazeau Y 2.39 1.75 3.79 -21.8 -21.9 -23.7 6.92 5.56 11.16 -21.6 -23.5 -24.8 -22.7301 -23.5575
Cecil 5.58 4.18 2.86 -28.6 -27.6 -29.4 3.95 6.35 2.26 -26.5 -27.9 -29.5 -28.4501 -27.7476
Cherhill 6.34 4.98 3.91 -27.5 -26.3 -28.8 3.93 7.22 3.46 -25.6 -26.55 -29.1 -27.4414 -26.8984
C. del Bonita 8.78 5.95 6.41 -27.2 -26.7 -28.4 9.91 5.49 1.72 -26.3 -27.2 -29 -27.4231 -26.8599
Dunvegan 2.9 1.88 6.34 -25.1 -24.8 -26 4.02 4.01 12.91 -24 -26.1 -26.7 -25.5624 -26.0668
Foothills 12 3.7 2.37 7.57 -25.1 -23.8 -25.4 6.21 5.06 12.62 -24.2 -25.9 -26.5 -25.0406 -25.7751
Glenevis 8.89 6.06 5.86 -27.5 -26.85 -28.1 5.44 6.36 2.53 -25.55 -27.2 -28.5 -27.4797 -26.8031
Home 34 3.64 2.33 6.95 -25.3 -25.3 -25.9 6.1 4.84 11.38 -24.9 -26.3 -27 -25.6228 -26.2743
Hutch 6.12 5.59 1.78 -26.7 -25.9 -27.1 4.09 7.16 1.21 -23.9 -25.6 -27.4 -26.4213 -25.2168
Loon 3.4 2.82 1.75 -27.4 -25.6 -29.3 2.51 4.33 1.49 -25.3 -26.25 -29.5 -27.1803 -26.5451
Lousana 4.62 4.22 1.95 -28.7 -26.3 -30.1 1.6 3.64 1.03 -26.2 -27.1 -30.7 -28.0144 -27.4617
Medicine River 5.14 3.58 4.2 -25.55 -24.95 -25.7 5.04 5.71 3.41 -24.2 -26.15 -26.55 -25.4325 -25.5523
Miracle 1 6.05 3.73 9.54 -26 -25.2 -26.4 6.44 5.03 9.01 -24.7 -26.1 -27 -26.0431 -26.0557
Moose Mtm 4.92 3.93 6.42 -24.55 -23.85 -25.85 9.64 6.34 6.74 -23.85 -23.9 -25.9 -24.9164 -24.4721
Moose Mtm 2 3.77 2.89 8.24 -24.7 -23 -25.3 7.17 4.71 13.38 -23.2 -23.6 -25.8 -24.7021 -24.6518
Otter 4.22 2.98 6.7 -27.8 -26.1 -29.7 1.97 4.66 9.65 -26 -26.7 -29.9 -28.3514 -28.5121
Plato 5.26 4.11 2.88 -25.9 -25.5 -26.9 4.19 5.49 1.11 -23.9 -25.8 -27.4 -26.0009 -25.2268
Provost 5.21 3.68 3.61 -25.9 -26 -26 4.92 5.5 2.59 -24.4 -26.2 -26.9 -25.9583 -25.6586
Rainbow 1 5.49 4.09 8.5 -25.55 -24 -27.75 5.15 7.1 14.13 -23.9 -24.2 -28.9 -26.2337 -26.6589
Rainbow 2 3.85 3.3 6.36 -26.9 -25.2 -29.3 5.05 7.48 14.11 -24.3 -24.7 -28.4 -27.6146 -26.5839
Redwater 3.55 2.8 4.78 -27.5 -25.8 -29 3.11 4.68 8.05 -25.6 -26.4 -29.9 -27.7165 -28.0217
Rycroft 4.15 2.83 7.1 -27.05 -26.01 -29.15 3.78 4.92 11.89 -27.25 -28.9 -30.95 -27.8999 -29.7809
S. Eureka 4.91 3.23 7.48 -26.5 -26 -27.15 5.48 4.81 9.22 -24.85 -26.5 -27.95 -26.7079 -26.7218
Sage Creek 0.64 0.56 0.97 -25.15 -25.25 -24.9 5.56 4.77 8.8 -23.2 -25.55 -25.55 -25.0641 -24.8670
Sylvan Lake 6 4.21 4.03 -25.9 -25.8 -25.8 2.13 5.29 2.19 -24.25 -25.3 -25.55 -25.8421 -25.1242
Turner Valley 0.78 0.66 1.26 -23.3 -22.8 -24.05 4.88 5.78 7.53 -22.7 -24.1 -25.4 -23.5278 -24.2626
Virginia Hills 4.71 3.51 7.86 -24.9 -24.3 -26.9 8.27 6.44 7.19 -24.55 -25.35 -28.1 -25.7466 -25.9508
Wainwright 6.19 4.19 3.19 -25.7 -25.6 -26 5.76 6.78 1.69 -23.8 -25.8 -26.5 -25.7396 -25.0736
Wallesden Gr. 5.05 3.83 4.37 -26.5 -25.8 -27.7 4.62 5.7 2.91 -24.7 -26.3 -27.9 -26.6934 -26.0932
Wembley 5.44 3.38 6.71 -29.7 -28.5 -30.4 4.93 6.04 6.14 -28.1 -28.9 -30.8 -29.7413 -29.3513
Zama 4.71 3.06 7.66 -25.9 -25.3 -28 5.19 6.74 15.43 -23.4 -24.8 -28.8 -26.8235 -26.7903