Marine carbonate systems in the Sarmatian (Middle Miocene) of the Central Paratethys: the Zsambek Basin of Hungary - Archive ouverte HAL Access content directly
Journal Articles Sedimentology Year : 2009

Marine carbonate systems in the Sarmatian (Middle Miocene) of the Central Paratethys: the Zsambek Basin of Hungary

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Pierre Moissette
Miklos Kazmers
  • Function : Author
Emoke Toth
  • Function : Author
Agnes Gorog
  • Function : Author
Alfred Dulai
  • Function : Author
Pal Muller
  • Function : Author

Abstract

The study of eight stratigraphic sections at the margin of the semi-enclosed Zsambek Basin (Hungary) allows the sedimentary anatomy of oolitic-bioclastic systems in the Sarmatian of the Central Paratethys to be reconstructed. The mollusc, foraminiferal and ostracod associations indicate that the carbonate systems are Latest Badenian to Late Sarmatian in age. The Lower-Upper Sarmatian deposits are organized in superimposed subaqueous dunes prograding towards the basin on a low-angle ramp. During the Late Sarmatian, the ramp underwent subaerial erosion linked to a moderate relative fall in sea-level. Lagoonal deposits were later formed and microbial-nubeculariid-bryozoan-serpulid buildups were emplaced. The 'abnormal' marine conditions of the Sarmatian, conducive to the development of a poorly diversified flora and fauna and dominant non-skeletal grains, are linked to fluctuating salinities, mesotrophic to eutrophic conditions and perhaps high alkalinity.

Dates and versions

hal-00429337 , version 1 (02-11-2009)

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Jean-Jacques Cornee, Pierre Moissette, Jean-Paul Saint Martin, Miklos Kazmers, Emoke Toth, et al.. Marine carbonate systems in the Sarmatian (Middle Miocene) of the Central Paratethys: the Zsambek Basin of Hungary. Sedimentology, 2009, 56 (6), pp.1728-1750. ⟨10.1111/j.1365-3091.2009.01055.x⟩. ⟨hal-00429337⟩
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