The Upper Marine Molasse (Burdigalian, Ottnangian) in Southwest Germany facies interpretation and a new lithostratigraphic terminology

Heckeberg, Nicola S.; Pippèrr, Martina; Läuchli, Benjamin; Heimann, Florian; Reichenbacher, Bettina

doi:10.1127/1860-1804/2010/0161-0285

Cited by 12 publications

(7 citation statements)

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“…They are composed of clayey to fine sandy marls (Doppler et al 2005). The Neuhof Beds in the Eastern Mollasse are the equivalent of the Kalkofen Formation in the Western Molasse, and their age is Lower Ottnangian (Burdigallian) (Heckeberg et al 2010). Vienna Basin (Slovakia)—At the Rohožník locality marine sediments of the Studienka Formation (Vass 2002) were exposed for clay mining.…”

Section: Introductionmentioning

confidence: 99%

Ghost shrimp Calliax de Saint Laurent, 1973 (Decapoda: Axiidea: Callianassidae) in the fossil record: systematics, palaeoecology and palaeobiogeography

Hyžný¹,

Gašparič²

2014

Zootaxa

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Ghost shrimps of the family Callianassidae are very common in the fossil record, but mostly as isolated cheliped elements only. The assignment to biologically defined genera, diagnosed on the basis of soft part morphology, is thus rather difficult. In this respect, proxy characters present on chelipeds that are the most durable ghost shrimp remains are needed to ascribe fossil material to extant genera. The genus Calliax de Saint Laurent, 1973 has been particularly obscure in this respect. Thorough comparison of extant members of the genus resulted in evaluation of characters present on chelipeds being taxonomically important on the genus level, specifically: 1) rectangular major P1 propodus with two ridges on the base of the fixed finger extending onto manus; 2) major P1 fingers relatively short; and 3) minor P1 chela with dactylus longer than fixed finger and possessing a wide gap between fingers. On this basis, Callianassa michelottii A. Milne Edwards, 1860, from the Oligocene and Miocene of Europe is herein reassigned to Calliax. Further re-examination of the ghost shrimp fossil record revealed that C. szobensis Müller, 1984, from the Middle Miocene of Hungary represents the same animal as C. michelottii and they are synomymised herein. The known geographic distribution of C. michelottii is expanded by the first confirmed occurrence of the species in Slovakia. All occurrences of C. michelottii known to date are reviewed and documented. The presence of Calliax michelottii comb. nov. may be considered an indicator of deeper marine settings. Based on the scarce fossil record known to date, Calliax has a Tethyan origin; it supposedly migrated westward to establish present day communities in the Caribbean sometime before the Middle Miocene.

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Section: Introductionmentioning

confidence: 99%

Ghost shrimp Calliax de Saint Laurent, 1973 (Decapoda: Axiidea: Callianassidae) in the fossil record: systematics, palaeoecology and palaeobiogeography

Hyžný¹,

Gašparič²

2014

Zootaxa

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“…In contrast to the wellknown and thoroughly investigated Molasse strata of Upper Austria and Bavaria (e.g. Robinson and Zimmer, 1989; Kowalke and Reichenbacher, 2005;Rupp et al, 2008;Heckeberg et al, 2010;Pippèrr and Reichenbacher, 2010;Grunert et al, 2012;Grunert et al, 2013;Liebl et al, 2013;Reichenbacher et al, 2013;Sant et al, 2017;Pippèrr et al, 2018), the easternmost Lower Austrian Molasse stratigraphy and facies are still partly underexplored (Wagner, 1998;Roetzel et al, 1999;Krenmayr et al, 2002;Piller et al, 2004;Roetzel et al, 2006;Gebhardt et al, 2013;Wimmer-Frey et al, 2013;Egger et al, 2017;Palzer-Khomenko et al, 2018). For instance, the depositional environment of the lower Miocene, upper Ottnangian (Piller et al, 2004;Piller et al, 2007) Traisen Formation (Gebhardt et al, 2013), predominantly massive mica-rich sands between St. Pölten and Tulln, has been a matter of debate over the past two decades.…”

Section: Introductionmentioning

confidence: 87%

“…Palzer-Khomenko et al (2018) defined stratigraphic units using the CMI signal. While early, middle and late Ottnangian boundaries are distinguished in Bavaria (Heckeberg et al, 2010;Pippèrr and Reichenbacher, 2017), a corresponding definition and differentiation are unknown in Lower Austria. Abbreviations: For.…”

Section: Palaeogeographymentioning

confidence: 99%

“…Wagner, 1998;Sikula and Nehyba, 2004;Heckeberg et al, 2010) form a thick sedimentary succession in front of the Alpine Orogen, including classical geosites such as the type locality for the Ottnangian regional Paratethys stage of the Early Miocene (e.g. Steininger et al, 1983;Roegl et al, 1997;Wessely, 2006;Grunert et al, 2010a;Heckeberg et al, 2010;Gebhardt et al, 2013;Pippèrr et al, 2018). In contrast to the wellknown and thoroughly investigated Molasse strata of Upper Austria and Bavaria (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Facies, palaeogeography and stratigraphy of the lower Miocene Traisen Formation and Wildendürnbach Formation (former “Oncophora Beds”) in the Molasse Zone of Lower Austria

Palzer-Khomenko

Wagreich

Kallanxhi

et al. 2018

Austrian Journal of Earth Sciences

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A detailed study of OMV wells throughout the Lower Austrian Molasse Basin demonstrates the existence of a distinct and synchronous upper Ottnangian (lower Miocene) stratigraphic signal, the Calcite Minimum Interval (CMI). It corresponds to the depositional phase of the Rzehakia Lake System. This signal is interpreted to be of chronostratigraphic importance as an expression of palaeoclimate and related sea-level change. It is represented by the brackish Traisen Formation, which crops out south of the Danube. The Traisen Formation correlates with sands and shales in OMV wells to the north, termed Wildendürnbach Formation. However, the CMI underlies a marine unit, the so-called “Oncophora Beds” (also known as Rzehakia Beds) as reported from OMV wells in the north at the border to the Czech Republic. We demonstrate that these former “Oncophora Beds” are younger, i.e. of Karpatian age, than originally assumed. Therefore, these deposits cannot be correlated to the late Ottnangian Traisen Formation. This may solve the problem of contradicting interpretations concerning the depositional environment of both units, which were correlated to each other in the past. As no Rzehakia bivalves (formerly Oncophora) are described from these former “Oncophora Beds”, we recommend to avoid using the term for these turbiditic sands. Instead, we attribute these deposits to the fully marine Karpatian Laa Formation. These new findings, which are in accordance with published data from the Czech Republic, indicate two (in time and space) independent sedimentary systems and sand deposition centres for the Traisen Formation and the massive sands attributed as “Oncophora Beds” around Wildendürnbach. A late Ottnangian system in the south delivered the material of the Traisen Formation from the Alps and a Karpatian system delivered the clastic material of the massive sands of the Laa Formation from the east.

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“…These sediments show a homogeneous mineralogical and chemical composition. According to poor biostratigraphical resolution, the internal differentiation and correlations to Molasse successions to the west (e.g., Upper Austria and Bavaria, Rupp et al 2008;Heckeberg et al 2010;Reichenbacher et al 2013;Pippèrr & Reichenbacher 2017;Sant et al 2017b) and (north-) east (e.g., Čtyroký 1972;Čtyroký et al 1973;Holcová 2001Holcová , 2002Krhovský et al 2001;Kováč et al 2004Kováč et al , 2017Šikula & Nehyba 2004) remained questionable. Additional problems arise, as the Ottnan gian is subdivided into a marine lower and middle and a brackish upper Ottnangian in the west by use of benthic fora minifers (e.g., Rupp et al 2008;Grunert et al 2010a;Pippèrr & Reichenbacher 2017;Sant et al 2017a).…”

Section: Geological Settingmentioning

confidence: 99%

A calcite crisis unravelling Early Miocene (Ottnangian) stratigraphy in the North Alpine–Carpathian Foreland Basin: a litho- and chemostratigraphic marker for the Rzehakia Lake System

Palzer-Khomenko¹,

Wagreich²,

Knierzinger³

et al. 2018

Geologica Carpathica

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Within the Lower Austrian part of the North Alpine Foreland Basin (NAFB), up to 1000 m of sediments were deposited throughout the Ottnangian (Early Miocene, Burdigalian). According to homogeneous compositions and sparse biostratigraphic resolution, a consistent stratigraphic concept from the basin margins into the foreland depocenter was still lacking. New investigations on several deep drill cores throughout the basin provide comprehensive sedimentological, mineralogical, chemical and micropaleontological data. A calcite poor, fossil- and pyrite-free, smectite-rich, up to 800 m thick interval was identified and correlated to the time interval of the late Ottnangian brackish Rzehakia Lake System. For this section, we introduce the term Calcite Minimum Interval (CMI). We define the onset of the CMI by a sharp decrease of calcite contents and the disappearance of autochthonous (and reworked) calcareous nannofossils. We define the termination of the CMI by the permanent increase of pyrite contents and the reappearance of calcareous nannofossils. The CMI as a litho- and chemostratigraphical marker for the Rzehakia Lake System constitutes a stratigraphic key horizon. Within the NAFB in Lower Austria, its onset corresponds to the middle/upper Ottnangian transition while its termination correlates roughly to the Ottnangian / Karpatian boundary. This allows a precise definition, identification and correlation of (upper) Ottnangian stratigraphic units of the NAFB. For the central basinal parts of the Rzehakia Lake System, we introduce the new lithostratigraphic term Wildendürnbach Formation which correlates to the marginal Traisen Formation.

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The Upper Marine Molasse (Burdigalian, Ottnangian) in Southwest Germany facies interpretation and a new lithostratigraphic terminology

Cited by 12 publications

References 0 publications

Ghost shrimp Calliax de Saint Laurent, 1973 (Decapoda: Axiidea: Callianassidae) in the fossil record: systematics, palaeoecology and palaeobiogeography

Ghost shrimp Calliax de Saint Laurent, 1973 (Decapoda: Axiidea: Callianassidae) in the fossil record: systematics, palaeoecology and palaeobiogeography

Facies, palaeogeography and stratigraphy of the lower Miocene Traisen Formation and Wildendürnbach Formation (former “Oncophora Beds”) in the Molasse Zone of Lower Austria

A calcite crisis unravelling Early Miocene (Ottnangian) stratigraphy in the North Alpine–Carpathian Foreland Basin: a litho- and chemostratigraphic marker for the Rzehakia Lake System

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