Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao IRIS Cnrarrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
CNR ExploRA
Article . 2009
Data sources: CNR ExploRA
versions View all 3 versions
addClaim

The Styrian Basin: A key to the Middle Miocene (Badenian/Langhian) Central Paratethys transgressions

Authors: Hohenegger Johann; Rögl Fred; ori Stjepan; Pervesler Peter; Lirer Fabrizio; Roetzel Reinhard; Scholger Robert; +1 Authors

The Styrian Basin: A key to the Middle Miocene (Badenian/Langhian) Central Paratethys transgressions

Abstract

Die marine Sedimentation während des älteren Miozäns (Karpatium / Oberes Burdigalium) endete im Steirischen Becken mit einer starken, durch tektonische Bewegungen verstärkten Regression. Der Sedimentationszyklus im Karpatium entspricht der globalen Sequenz TB 2.2 und wird durch das Absinken des Meeresspiegels (Bur5/Lan1) begrenzt. Die Kombination der Regression mit den tektonischen Bewegungen (,,Steirische Tektonische Phase") ist als Winkeldiskordanz und Sedimentationsunterbrechung (,,Styrian Unconformity") sowohl in den Tagesaufschlüssen Wagna und Katzengraben, als auch in Tiefbohrungen ausgebildet. Sedimente der folgenden, ersten Transgression im Badenium/Langhium sind in den Randbereichen des Beckens zumeist erodiert oder nur spärlich erhalten, während im Beckeninneren durchwegs bathyale Sedimente sowohl im Karpatium als auch im Badenium auftreten. Die folgende Transgression im Badenium läßt sich anhand des kalkigen annoplanktons in die Nn4 Zone stellen und korreliert wegen des Auftretens der planktonischen Foraminifere Praeorbulina sicana mit dem basalen Langhium. Die Sequenz 3. Ordnung entspricht der TB 2.3. Die erosive Phase an der Lan2/Ser1 Grenze ist in den Randbereichen des Beckens als Sedimentationsunterbrechung ausgeprägt, die von der 2. Transgression im Badenium, der Haupttransgression innerhalb der Paratethys, gefolgt wird. Letztere entspricht dem globalem Zyklus TB 2. Karbonate der Weissenegg-Formation kennzeichnen im Steirischen Becken den Höhepunkt dieser Trangression. Die über den Karbonaten folgenden Siliziklastika müssten entsprechend der Sequenzstratigraphie als zum ,,falling stage system tract" gehörend eine Regression anzeigen, sie kennzeichnen aber durch das kontinuierliche Absinken des Meeresbodens die tektonisch bedingte Subsidenz des Steirischen Beckens im Laufe des älteren Mittleren Miozäns.

In the Styrian Basin, early Miocene marine sedimentation of the Karpatian (upper Burdigalian) ended with basin shallowing, marked regression and tectonic movements. The Karpatian sedimentation cycle corresponds to the global 3 order cycle TB 2.2, followed by the Bur5/Lan1 sea-level fall. This regression was combined with tectonic movements (the Styrian Tectonic Phase), seen in the Styrian Unconformity by an angular discordance at the Wagna and Katzengraben outcrops and also in deep wells. Sediments of the first middle Miocene (Badenian/Langhian) transgression are commonly eroded or reduced in thickness at the basin borders. In the basin center, the bathyal environment continues from the Karpatian to the Badenian. Sediments of the first Badenian transgression have been dated by calcareous nannoplankton as NN4 and correlated by the occurrence of Praeorbulina sicana with the basal Langhian. The 3 order sequence corresponds to TB 2.3. The erosional phase of the sea-level fall Lan2/Ser1 can only be observed in near-shore facies, followed by transgressive beds within Zone NN5, which represents the second, main Badenian transgression in the Central Paratethys and corresponds to the long global cycle TB 2. The highstand system tract of this cycle is expressed in carbonate build-ups of the Weissenegg Formation. According to the global 3 order sequences, the youngest sediments of the Retznei section (< 14.39 Ma) overlying the carbonate buildups belong to the falling-stage system tract of TB2, but did not record regression, but instead continuous deepening of the Styrian Basin, indicating strong subsidence during the early middle Miocene.

Country
Italy
Keywords

Chronostratigraphy, Middle Miocene, Central Paratethys, Styrian Phase, Badenian Transgressions, Styrian Basin

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Upload OA version
Are you the author of this publication? Upload your Open Access version to Zenodo!
It’s fast and easy, just two clicks!