Chronostratigraphy of clinothem-filled non-marine basins: Dating the Pannonian Stage

Clinoforms and clinothems are important common architectural elements in the sedimentary record of many basins worldwide. The influence that they exert on chronostratigraphic interpretations, however, is often underestimated. This especially true non-marine basins, such as Central European to Asian Neogene Paratethyan where division correlation usually based fossils environmentally sensitive molluscs recovered from outcrops shallow-water deposits. In subsurface, diachronous boundary between foreset topset parts shelf-edge scale clinoforms, significant lithological paleontological changes can be observed with transition deep shallow water, was routinely identified one regional stage or substage boundaries, inflicting serious confusion chronostratigraphy. late brackish lacustrine basin fill Pannonian (Pannonian Stage, 11.6 2.6 Ma), extended endemic radiation long-term gradual morphological change various groups biota offer good marker species for high-resolution biostratigraphy, dinoflagellate algae used establish a clinothem biozone boundaries correlated geological time through mammal stratigraphic considerations, magnetostratigraphy, radiometric dating. For being, beginning deposition at Ma intervals 8.8 7.1 4.6–2.6 accurately dated drill cores. These dense seismic network across basin. other Miocene Pliocene, uncertainty dating remains high order several 100 kys. • Discrepancy field- well-based stratigraphy geometry commonly source issues. Such misinterpretations Paratethys region. endemics-based biostratigraphy adapted seismically imaged sets. clionoform-bounded biochronozones by magnetostratigraphy radioisotopic