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Relationships between: (a) dibenzothiophenes (∑DBT) and the hopanes/steranes (HOP/EST) ratio and (b) TPP/TPP + DIA ratio of samples from the Candeias Formation (Recôncavo basin) and Barreirinha Formation (Amazon basin). Red dotted points are Candeias Formation. Blue dotted points are the Barreirinha Formation.
