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. Author manuscript; available in PMC: 2020 May 18.
Published in final edited form as: Geobiology. 2019 Dec 21;18(3):326–347. doi: 10.1111/gbi.12378

TABLE 2.

Maturity and source sensitive biomarker ratios from the solvent extract (SE) and kerogen-bound (KB) phases of organic matter

Location Chuar group Visingsö group
Section Nankoweap Butte Sixtymile Canyon Broken Nodule Upg Girabacken Byd
Sample ID 36 50 SW4 SWE2 v1O v12 v24 v31 v37 v1 v19 v21
Free (SE)/Bound (KB) SE KB SE KB SE KB SE KB SE SE KB SE SE SE SE SE KB SE
Hopane distributions
 Maturity sensitive
  Tricyclics/C30αβH 191 77 170 239 14 96 5.8 8.7 2.7 2.6 48 2.2 1.5 1.0 0.6 0.8 7.1 0.7
  C27 Ts/Tm 214 2.68 111 1.71 8.99 0.15 2.39 0.07 1.30 1.17 0.04 1.46 0.86 0.44 0.58 1.07 0.04 0.46
  C29 Ts/apH 7.10 0.66 7.13 0.49 1.86 0.07 1.09 0.09 0.80 0.76 0.02 1.08 0.56 0.34 0.31 0.63 0.03 0.24
  30-norH/C30αβH 2.52 0.25 0.98 0.24 0.11 0.13 0.08 0.14 0.06 0.06 0.10 0.05 0.04 0.06 0.04 0.03 0.04 0.05
  C30βαH/C30αβH 0.00 0.25 0.00 0.08 0.05 0.09 0.05 0.06 0.12 0.13 0.34 0.10 0.12 0.14 0.10 0.09 0.32 0.12
  C31αβH 22S/(S + R) 0.51 0.47 0.54 0.50 0.56 0.57 0.57 0.59 0.57 0.56 0.54 0.56 0.58 0.57 0.57 0.58 0.60 0.58
Source sensitive
 Tet/C23T 0.30 0.35 0.24 0.24 0.42 0.14 0.43 0.20 0.27 0.29 0.32 0.24 0.24 0.70 0.84 0.42 0.48 1.38
 C26T/C25T 1.02 1.04 1.05 0.87 0.77 0.85 0.74 1.00 1.09 0.99 0.95 1.29 0.73 1.21 1.36 0.78 1.07 0.97
 C29αβH/C30αβH 4.05 1.58 1.43 1.82 0.55 2.60 0.54 1.89 0.49 0.43 4.43 0.41 0.41 0.55 0.64 0.38 3.00 0.65
 G/C30αβH 0.30 0.21 0.27 0.22 0.19 0.45 0.11 0.15 0.03 0.03 n.d. 0.04 0.07 0.01 0.02 0.03 0.02 0.01
 2αMeH/3pMeH n.d. n.d. 1.13 n.d. 0.24 0.50 0.13 0.38 0.40 0.39 3.65 0.36 0.43 0.52 0.67 0.34 1.33 0.36
Sterane/Hopane ratios
 Sterane/Hopane (1) 0.09 0.56 0.19 1.01 0.38 1.26 0.37 0.36 0.23 0.36 0.37 0.15 0.18 0.07 0.04 0.16 0.16 0.03
 S/H (2) 0.05 0.38 0.11 0.69 0.27 0.81 0.28 0.28 0.20 0.32 0.30 0.13 0.17 0.06 0.04 0.15 0.15 0.03
 S/H (3) 0.04 0.27 0.10 0.41 0.22 0.46 0.23 0.23 0.16 0.24 0.23 0.12 0.14 0.06 0.04 0.13 0.13 0.03
Sterane distributions
 %C26 40 32 38 32 23 29 17 17 12 8 15 9 4 6 3 4 7 2
 %C27 49 68 53 68 70 63 76 76 80 86 80 80 89 82 86 91 88 98
 %C28 (Erg) 7 n.d. 5 n.d. 2 2 1 1 5 3 3 6 4 8 8 3 3 n.d.
 %C28 (Cryo) 4 n.d. 4 n.d. 4 4 4 4 4 3 2 5 3 4 3 2 2 n.d.
 %C28 (total) 11 n.d. 9 n.d. 6 6 5 5 9 6 5 11 7 12 11 5 5 n.d.
 %C30 (unknown) n.d. n.d. n.d. n.d. 1 2 1 2 n.d. n.d. n.d. n.d. n.d. n.d. n.d. n.d. n.d. n.d.
 Cryo/Chol 0.08 n.d. 0.07 n.d. 0.06 0.07 0.05 0.05 0.04 0.03 0.02 0.06 0.03 0.05 0.04 0.02 0.02 n.d.
 Dia/Reg C27 1.43 <0.04 0.79 <0.02 0.31 <0.01 0.31 <0.01 1.64 1.02 <0.03 1.42 1.45 1.11 1.40 1.57 <0.04 1.14

Note: Upg: Uppgranna; Byd: Boeyrd; Tricyclics: C19–C26 tricyclic terpanes; C30αβH: 17α(H),21β(H)-hopane; C27Ts: 18α(H)-trisnorneohopane; C27Tm: 17α(H)-trisnorhopane; C29Ts: 18α−30-norneohopane; C29αβH: 17α(H),21β(H)-30-norhopane; 30-norH: 17α(H),21β(H)-30-norhomohopane; C30βαH: 17β(H),21α(H)-hopane (moretane); C31αβH: 17α(H),21β(H)-homohopane (S & R denote stereochemistry at the C-22 position); Tet: C24 tetracyclic terpane; C23T: C23 tricyclic terpane; C26T: C26 tricyclic terpane; C25T: C25 tricyclic terpane; G: gammacerane; 2αMeH: 2α-methylhopane; 3βMeH: 3β-methylhopane; S/H (1) as defined in this study: Σ(dia- + regular C26–C30 steranes [includes cryostanes and the unknown C30 series])/Σ(C27–C35 αβ hopanes); S/H (2) from Brocks et al. (2017): Σ(dia- + regular C27–C29 steranes [excludes C26 norcholestanes and cryostanes])/Σ(C27–C35 αβ hopanes); S/H (3) from Brocks et al. (2015): Σ(dia- + regular cholestanes and cryostanes [excludes C26 norcholestanes and ergostanes]/Σ(C27–C35 αβ hopanes); Cryo (cryostane): 26-methylcholestane; Chol: cholestane; Erg: ergostane; Dia/Reg C27: βα−20(S + R)-diacholestanes/[ααα- and αββ−20(S + R)-regular cholestanes]; n.d.: not detectable. All ratios are derived from MRM-GC-MS analyses.