40 research outputs found
Early diagenetic transformation of higher-plant triterpenoids in deep-sea sedmiments from Baffin Bay
Early diagenesis of terrigenous triterpenoids and its implications for petroleum geochemistry
A-ring contracted oleananes: evidence for a major pathway in the diagenesis of terrigenous triterpenes
First positive identification of triterpenes of the taraxastane family in petroleum and oilshales: 19α(H)-taraxastane and 24-nor-19α(H)-taraxastane. Evidence for a previously unrecognised diagenetic alteration pathway oflup-20(29)-ene derivatives
Variations in the content and composition of organic matter in sediments underlying active upwelling regimes: a study from ODP Legs 108, 112 and 117
Biases from natural sulphurization in palaeoenvironmental reconstruction based on hydrocarbon biomarker distributions
We investigate the influence of natural sulphurization on hydrocarbon biomarker signatures in immature sediments from Italy and off Peru