High Resolution Polarity Records and the Stratigraphic and Magnetostratigraphic Correlation of Late Miocene and Pliocene (Pannonian, s.l.) Deposits of Hungary

Elston, Donald P.; Lantos, Miklós; Hámor, Tamás

doi:10.1007/978-94-011-0954-3_6

Cited by 19 publications

(16 citation statements)

References 9 publications

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“…3 and 4). Magnetic polarity zones correlated to the global polarity scale gave numerical ages of the sediments (Lantos et al, 1992;Elston et al, 1994). The depths of the polarity zones were converted to two-way travel time and annotated onto seismic sections located close to the cored holes.…”

Section: Data and Methods: Seismic Interpretations And Stratigraphic mentioning

confidence: 99%

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The Messinian problem in the Pannonian Basin, Eastern Hungary — Insights from stratigraphic simulations

Csató

Kendall

Moore

2007

Sedimentary Geology

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Section: Data and Methods: Seismic Interpretations And Stratigraphic mentioning

confidence: 99%

“…4. Correlation of paleomagnetic chronozones from Tiszapalkonya-I, Dévaványa-1 and Vésztő-1 coreholes (after Elston et al, 1994) to the global scale (Berggren et al, 1995). The Intra-Messinian Unconformity (IMU) formed approximately in C3r-C3An zones.…”

Section: Sedimentary Fillmentioning

confidence: 99%

The Messinian problem in the Pannonian Basin, Eastern Hungary — Insights from stratigraphic simulations

Csató

Kendall

Moore

2007

Sedimentary Geology

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“…4) is based mainly on endemic molluscs, ostracodes, and dinoflagellates (Papp et al 1985;Stevanovic et al 1990;Magyar et al 1999b). Correlation of Pannonian Basin sediments with the global stratigraphic system is made possible through mammal, radiometric, and magnetostratigraphic data (Elston et al 1994;Rö gl and Daxner-Hö ck 1996;Magyar et al 1999bMagyar et al , 2007.…”

Section: Methodsmentioning

confidence: 99%

The paradox of gradualism: phyletic evolution in two lineages of lymnocardiid bivalves (Lake Pannon, central Europe)

Geary¹,

Hunt²,

Magyar³

et al. 2010

Paleobiology

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Abstract.-Patterns preserved in the fossil record are of the highest importance in addressing questions about long-term evolutionary processes, yet both the description of pattern and its translation into process can be difficult. With respect to gradual phyletic change, we know that randomly generated sequences may exhibit characteristics of a ''trend''; apparent patterns, therefore, must be interpreted with caution. Furthermore, even when the claim of a gradual trend can be statistically justified, interpretation of the underlying mechanisms may be challenging. Given that we can observe populations changing rapidly over tens or hundreds of years, it is now more difficult to explain instances of geologically gradual (as opposed to punctuated) change.Here we describe morphologic change in two bivalve lineages from the late Miocene Lake Pannon. We evaluate change according to the model-based methods of Hunt. Both lineages exhibit size increases and shape changes over an interval of nearly 4 million years. Size and two shape variables in the conjungens lineage are best fit by a model of directional evolution; remaining shape variables mostly conform to unbiased random walks. Body-size evolution in the diprosopum lineage is also significantly directional but all shape variables are best fit by the unbiased random walk model; the small number of sampling intervals available for this lineage (n 5 6) makes determination of the actual pattern more difficult. Model-fitting results indicate that the parallel trajectories of increasing log shell height over time in the two lineages can be accounted for by an underlying trend shared by both lineages, suggesting that the size increases may be a shared response to the same cause. The pace of phenotypic change, measured as Lynch's D, is slower than the neutral expectation for all size and shape traits.Our examples illustrate well the paradox of gradualism; the sequences exhibit significant directional morphological evolution, but rates of change as measured over the long-term are apparently too slow for directional selection or even drift to be the cause. Viewing long-term phenotypic evolution in terms of populations tracking peaks on adaptive landscapes is useful in this context. Such a view allows for intervals of directional selection (during times of peak movement-resulting in the overall trends we can detect) interspersed with intervals of stasis (during times of peak stability-resulting in overall changes that appear to proceed more slowly than the neutral expectation). The paradox of gradualism thus reduces to (1) peak movements and their drivers, which are not restricted in rate as are population-genetic drivers, and (2) the maintenance of stasis, on which no consensus exists.We can identify no environmental parameter in the central European Neogene that exhibits consistent change across the interval of gradual morphologic change. It may be that in Lake Pannon the long-term persistence of generally ameliorating conditions (plentiful resources and habitat space, few pr...

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“…Age dating is a significant difficulty in the Pannonian Basin because of a lack of reliable and sufficient age data and because endemic fauna in the nonmarine environment cannot be directly correlated with marine fauna elsewhere (Juhász et al, 2006;Popov et al, 2006). Palaeomagnetic ages in four boreholes provide additional time control for the last 10 Myr of the basin fill (Elston et al, 1994). Therefore, dating of the Pannonian unconformities constitutes a major challenge and the estimated ages inevitably include uncertainties.…”

Section: Definition Age and Palaeo-bathymetry Of Key Horizonsmentioning

confidence: 99%

A three‐dimensional stratigraphic model for the Messinian crisis in the Pannonian Basin, eastern Hungary

et al. 2012

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A three‐dimensional quantitative stratigraphic forward model is employed to investigate the controls leading to the Messinian events in the lacustrine Pannonian Basin of Central Paratethys, and the link between the Messinian salinity crisis in the Mediterranean and the late Miocene‐Pliocene stratigraphy of the Pannonian Basin. Subsurface geological data show that a prominent unconformity surface formed during Messinian time in the Pannonian Basin associated with a sudden forced regression, abrupt basinward shift of facies and a subsequent, prolonged lowstand normal regression. The lowstand prograding series filled up the shallow basin fast, while, at the same time, the marginal areas of the basin were subject to tectonic inversion. The Dionisos program used in this research is built on a nonlinear water‐driven sediment diffusion process, and it employs multiple sediment classes, basin flexure and compaction. Four different scenarios were built in the experiments to test possible basin histories with different rates and timing of tectonic inversion. Each scenario was modelled in two versions: including and not including a lake‐level fall in the Messinian. The results confirm that the Pannonian Basin in the study area has undergone a tectonic inversion since the Messinian, although the exact rates of uplift at different locations remain uncertain. The unconformity and the observed stratigraphic architecture and facies pattern could be modelled adequately only in the versions that applied a Messinian lake‐level fall. Our research concludes that the Messinian unconformity in the Pannonian Basin was caused by an absolute lake‐level drop, likely linked to the desiccation of the Mediterranean, followed by subsidence and normal regression in the basin centre and concomitant tectonic inversion and uplift along the basin margins.

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High Resolution Polarity Records and the Stratigraphic and Magnetostratigraphic Correlation of Late Miocene and Pliocene (Pannonian, s.l.) Deposits of Hungary

Cited by 19 publications

References 9 publications

The Messinian problem in the Pannonian Basin, Eastern Hungary — Insights from stratigraphic simulations

The Messinian problem in the Pannonian Basin, Eastern Hungary — Insights from stratigraphic simulations

The paradox of gradualism: phyletic evolution in two lineages of lymnocardiid bivalves (Lake Pannon, central Europe)

A three‐dimensional stratigraphic model for the Messinian crisis in the Pannonian Basin, eastern Hungary

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