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AAPG Bulletin
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AAPG Bulletin; Year: 2020; Issue: June DOI: 10.1306/0122201618217407
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Figure 21. Diamondoid organic facies parameter plot of the Niger Delta oil samples indicating that the oil was from a type II marine source facies similar to that of the North Sea oil (after Schulz et al., 2001). DMDI (%) = 100 × 3,4-dimethyldiamantane/(3,4- + 4,9-) dimethyldiamantane; EAI (%) = 100 × 2-ethyladamantane/(2- + 1-) ethyladamantane.
Figure 21. Diamondoid organic facies parameter plot of the Niger Delta oil samples indicating that the oil was from a type II marine source facies similar to that of the North Sea oil (after Schulz et al., 2001). DMDI (%) = 100 × 3,4-dimethyldiamantane/(3,4- + 4,9-) dimethyldiamantane; EAI (%) = 100 × 2-ethyladamantane/(2- + 1-) ethyladamantane.