4,231
edits
Changes
Jump to navigation
Jump to search
Line 17:
Line 17: − +
no edit summary
[[file:evaluating-source-rocks_fig6-14.png|thumb|{{figure number|1}}. Copyright: Lingerer et al., 1991; courtesy John Wiley & Sons.]]
[[file:evaluating-source-rocks_fig6-14.png|thumb|{{figure number|1}}. Copyright: Lingerer et al., 1991; courtesy John Wiley & Sons.]]
Gross trends of hydrogen indices (HI) can be used as a maturation indicator. The hydrogen index is calculated from Rock-Eval data using the following formula:
Gross trends of hydrogen indices (HIs) can be used as a maturation indicator. The hydrogen index is calculated from Rock-Eval data using the following formula:
:<math>\mbox{HI} = \mbox{S}_{2} \mbox{ (mg/g)}/\%\mbox{TOC} \times 100</math>
:<math>\mbox{HI} = \mbox{S}_{2} \mbox{ (mg/g)}/\%\mbox{TOC} \times 100</math>