Skip to main content

Advertisement

Table 7 Calculated index results based on biomarker parameters of the analyzed stromatolites

From: Palaeoenvironmental setting of lacustrine stromatolites in the Miocene Wudaoliang Group, northern Tibetan Plateau

Index Calculation Result
CPI25–31 0.5 × [(n-C25 + n-C27 + n-C29 + n-C31)/(n-C24 + n-C26 + n-C28 + n-C30) + (n-C25 + n-C27 + n-C29 + n-C31)/(n-C26 + n-C28 + n-C30 + n-C32)] 3.79
ACL27–33 (27 × n-C27 + 29 × n-C29 + 31 × n-C31 + 33 × n-C33)/(n-C27 + n-C29 + n-C31 + n-C33) 29.53
Norm31 n-C31/(n-C29 + n-C31) 0.49
Norm33 n-C33/(n-C29 + n-C33) 0.15
Paq (C23 + C25)/(C23 + C25 + C29 + C31) 0.34