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Origin of Bitumen From the Source Rocks and Palaeothermicity Indicators of the Subsalt Series in the Eastern Part of the Precaspian and Preuralian Basins (Kazakhstan)

T.A. Yensepbayev1, G. Zoltaev1, and A. Izart2

1Kazakh National Technical University
2University of Lorraine


In the given work results of petrographic (Ro) geochemical (Rock-Eval) and molecular studies are represented. These studies show that one could distinguish three groups of organic matter (OM): marine, continental and mixed II/III. Over these three groups there are rocks whose organic contents are mainly bituminous. The bitumen is also detected in many samples which are generally associated, with the OM of the algal type and mixed.


AAPG Search and Discovery Article #90188 ©GEO-2014, 11th Middle East Geosciences Conference and Exhibition, 10-12 March 2014, Manama, Bahrain