Lower Pannonian Deltaic-Lacustrine Processes and Sedimentation, Békés Basin

Autor: R. Lawrence Phillips, Istvan Revesz, Istvan Berczi
Rok vydání: 1994
Předmět:
Zdroj: Basin Analysis in Petroleum Exploration ISBN: 9789401044127
DOI: 10.1007/978-94-011-0954-3_3
Popis: Sedimentological investigations of the 6500-m-thick Neogene and younger section of the Bekes basin reveal multiple sedimentary processes related to deltaic progradation in a deep lacustrine basin. Cores, well logs and seismic profiles were used to investigate the sedimentologic processes, the paleoenvironments of deposition, and the history of basin filling. A gradual termination of middle Miocene (Badenian-Sarmatian) shallow-marine bioclastic deposition marks the time of accelerated basin subsidence and the onset of lacustrine sedimentation(Pannonian sensu-lato). Three major stages of lacustrine sedimentation are identified. These stages (in ascending order) are represented by: (1) basal calcareous to silty organic-rich marl; (2) prodelta turbidites; and (3) delta-slope deposits.
Databáze: OpenAIRE