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AAPG Bulletin
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AAPG Bulletin; Year: 2021; Issue: March DOI: 10.1306/08192019077
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Figure 9. Gammacerane index (Gam/Hop; ratio of gammacerane to 17α, 21β-30-homohopane (22R)) versus pristane-to-phytane (Pr/Ph) for Berea oils and solvent extracts. Data for average (n = 21) eastern (E.) Ohio Devonian oil from GeoMark (2015). Red arrows point to high-maturity solvent extracts from the EQT 504353 well. Modified from Parris et al. (2019) with permission of Kentucky Geological Survey.
Figure 9. Gammacerane index (Gam/Hop; ratio of gammacerane to 17α, 21β-30-homohopane (22R)) versus pristane-to-phytane (Pr/Ph) for Berea oils and solvent extracts. Data for average (n = 21) eastern (E.) Ohio Devonian oil from GeoMark (2015). Red arrows point to high-maturity solvent extracts from the EQT 504353 well. Modified from Parris et al. (2019) with permission of Kentucky Geological Survey.