RT Journal Article
T1 Caracterización geoquímica de los niveles ricos en materia orgánica de los sedimentos turbidíticos del Eoceno, Pirineo Oriental
T1 Geochemical characterization of organic-rich levels in turbiditic Eocene sediments from SE Pyrenees
A1 Permanyer, Albert
A1 Caja, Miguel Ángel
AB The occurrence of or ganic-rich levels in the turbiditic sediments of the Vallfogona Fm (Cadí thrust sheet) inthe South-Eastern Pyrenees allowed us the determination of organic matter types, richness and oil potential,and highlighted the importance of organic matter sedimentation in turbiditic environments. Two types ofsamples were differentiated based on organic geochemistry and organic petrography. Type A samples weredeposited in a carbonated environment (even/odd n-alkanes predominance and Pr/Ph<1), under hypersalineconditions (presence of gammacerane, Ts/Tm >1). Type B samples suggest a more shaly marine environment,which is corroborated by the predominance of odd n-alkanes, Pr/Phe»1, Ts/Tm<1, the absence ofgammacerane and the similar content of the C27 and C29. Therefore, turbidite facies can be regarded as anenvironment where organic sedimentation occurs although with heterogeneities in type and amount oforganic matter. Thus, in turbidite systems reservoir and source could exist simultaneously
YR 2006
FD 2006
LK http://hdl.handle.net/10272/8453
UL http://hdl.handle.net/10272/8453
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026