Altered coals from near bodies of varieg
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Article
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2002
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Elsevier Science
⚖ 155 KB
of hopanes and higher carbon preference index (CPI) values (in-C22 to n-C3o) show significant bacterial contributions in samples characterized by high values of tissue preservation index (TPI). The C31 a~ (22S/ 22S+22R) hopane and C29 aaa (20S/20S+20R) sterane ratios show least variation through the