scholarly journals Deep water chondrichthyans from the Early Miocene of the Vienna Basin (Central Paratethys, Slovakia)

2011 ◽  
Author(s):  
Charlie Underwood ◽  
Jan Schlogl
Keyword(s):  
Deep Water ◽  
Early Miocene ◽  
Vienna Basin ◽  
Central Paratethys

scholarly journals A late Burdigalian bathyal mollusc fauna from the Vienna Basin (Slovakia)

2011 ◽  
Vol 62 (3) ◽  
pp. 211-231 ◽  
Author(s):  
Mathias Harzhauser ◽  
Oleg Mandic ◽  
Jan Schlögl
Keyword(s):  
New Species ◽  
Deep Water ◽  
Middle Miocene ◽  
Mediterranean Area ◽  
First Record ◽  
Early Miocene ◽  
Vienna Basin ◽  
Poor Knowledge ◽  
Central Paratethys ◽  
Aquitaine Basin

A late Burdigalian bathyal mollusc fauna from the Vienna Basin (Slovakia)This is the first record of a bathyal mollusc fauna from the late Early Miocene of the Central Paratethys. The assemblage shows clear affinities to coeval faunas of the Turin Hills in the Mediterranean area and the Aquitaine Basin in France. The overall biostratigraphic value of the assemblage is hard to estimate due to the general very poor knowledge of Miocene bathyal faunas. Several species, however, are known from deep water deposits of the Middle Miocene Badenian stage as well. This implies Early Miocene roots of parts of the Middle Miocene deep water fauna and suggests a low turnover for bathyal mollusc communities at the Early-Middle Miocene boundary. The nassariid gastropodNassarius janschloegliHarzhauser nov. sp. and the naticid gastropodPolinices cerovaensisHarzhauser nov. sp. are introduced as new species.

scholarly journals Bathyal sponges from the late Early Miocene of the Vienna Basin (central Paratethys, Slovakia)

PalZ ◽  
2013 ◽  
Vol 88 (3) ◽  
pp. 263-277 ◽  
Author(s):  
Magdalena Łukowiak ◽  
Andrzej Pisera ◽  
Ján Schlögl
Keyword(s):  
Early Miocene ◽  
Vienna Basin ◽  
Central Paratethys

Indications of Deep Marine Fans in the Early Miocene Foredeep of Lower Austria: A Potential New Play

2021 ◽  
Author(s):  
Ralph Hinsch
Keyword(s):  
Early Miocene ◽  
Thrust Belt ◽  
Vienna Basin ◽  
Thrust Sheet ◽  
Subsequent Formation ◽  
Lower Miocene ◽  
Seismic Amplitude ◽  
Upper Austria ◽  
Basin Floor ◽  
Definition Of

Abstract The petroleum province in Lower Austria resulted from the Alpine collision and the subsequent formation of the Vienna Basin. OMV is active in this area since its foundation in 1956. Several plays have been successfully tested and produced in this complex geological region. The main exploration focus is currently on the deep plays. However, this paper proposes a so far unrecognized and therefore undrilled play in a shallower level to broaden OMV's portfolio in Austria. Seismic re-interpretations of reprocessed 3D seismic data and structural reconstructions were used to review some of the existing plays and get novel ideas from improved understanding of processes. In the frontal accretion zone of the Alpine wedge, the Waschberg-Ždánice zone discoveries are limited to the frontal thrust unit and associated structures. The more internal parts of the thrust belt have only sparsely been drilled and are perceived not to have high-quality reservoir rocks. The detailed structural interpretations indicated that the foredeep axis during the Early Miocene was positioned in the thrust sheet located directly in front of the advancing Alpine wedge (comprising the eroding Rhenodanubian Flysch in its frontal part). Seismic amplitude anomalies can be interpreted to represent Lower Miocene basin floor and slope fans. Nearby wells did not penetrate these fans but drilled instead shale-dominated lithologies. Thus, the presence of potential sand-rich fans in front of the advancing alpine wedge is considered a potential new play in Lower Austria. Analogues are found in Upper Austria some 250 km to the West, where several large gas fields in Lower Miocene deposits located in front of the advancing Alpine wedge have been discovered by another operator. In that area the fans are only partly involved in the fold-thrust belt. In Lower Austria, these fans are located within the rear thrust sheet(s), providing a structural component to a mixed structural-stratigraphic trap. Two potential charge mechanism can be considered: a) biogenic gas charge from the organic matter of surrounding shales (like the Upper Austria analogues) or b) oil charge via the thrust fault planes from the Jurassic Mikulov Formation (the proven main source rock in the broader area). Our results add to the understanding of the Miocene structural-stratigraphic evolution of the Alpine collision zone. The definition of a potential new play may add significant value to OMV's upstream efforts in a very mature hydrocarbon province.

scholarly journals The distribution of <i>Triebelina raripila</i> and <i>Carinocythereis carinata</i> (Ostracoda) from the Middle Miocene of the Central Paratethys and their palaeogeographic implications

1998 ◽  
Vol 17 (2) ◽  
pp. 125-130 ◽  
Author(s):  
J. Szczechura
Keyword(s):  
Shallow Water ◽  
Late Miocene ◽  
Middle Miocene ◽  
Early Miocene ◽  
Central Paratethys ◽  
Eastern Paratethys ◽  
Main Species ◽  
Late Middle Miocene ◽  
The Mediterranean

Abstract. Late Middle Miocene (Upper Badenian) strata of the Fore-Carpathian Depression of Poland yield a shallow-water ostracod fauna which contains the species Triebelina raripila (G. W. Müller, 1894) and Carinocythereis carinata (Roemer, 1838). The palaeobiogeographic distribution of the two main species suggests, that in the late Middle Miocene, Central Paratethys was still connected to the Mediterranean, although still separated from the Eastern Paratethys and from southeastern Eurasia. The continuous occurrence of Triebelina raripila and Carinocythereis carinata in the Mediterranean basins, from the Early Miocene to Recent, indicates that marine conditions existed throughout, thereby allowing them to survive the Late Miocene salinity crisis.

scholarly journals Late Badenian foraminifers from the Vienna Basin (Central Paratethys): stable isotope study and paleoecological implications

2009 ◽  
Vol 60 (1) ◽  
pp. 59-70 ◽  
Author(s):  
Patrícia Kováčová ◽  
Natália Hudáčková
Keyword(s):  
Organic Matter ◽  
Stable Isotope ◽  
Water Column ◽  
Middle Miocene ◽  
Vienna Basin ◽  
Central Paratethys ◽  
Globigerina Bulloides ◽  
Isotope Study ◽  
Vital Effects ◽  
Stable Isotope Study

Late Badenian foraminifers from the Vienna Basin (Central Paratethys): stable isotope study and paleoecological implicationsPaleoecological interpretations based on stable isotope study of benthic (Uvigerina semiornata) and planktonic (Globigerina bulloides, Globigerinoides trilobus) foraminiferal shells from the Paratethys Vienna Basin (southwestern Slovakia) are presented. The study was performed on sediments of the Devínska Nová Ves-clay pit deposited during the Middle and Late Badenian (Middle Miocene). Our δ13C data show an enhanced nutrient input to the water column and the organic matter accumulation at the bottom of the Vienna Basin. The remineralization of accumulated organic matter on the sea floor resulted in the formation of oxygen-depleted zones, where no oxic indicators but the oxygen-deficiency tolerant species were found. Positive benthic δ18O signal can be attributed to the influence of the global cooling recognized in the world-ocean during the Middle Miocene. At the same time, variations observed in the water column are interpreted as reflecting the local temperature and salinity changes resulting from the fluvial and rain inflow. The differences between surface and bottom water temperature reflect the stratification of the water column. Such stratification might be related to the isolation process of Central Paratethys in the Badenian. This study confirms that δ13C and δ18O are not always in isotopic equilibrium with the ambient water but are also influenced by vital effects (respiration, symbiont photosynthesis …). The vital effects led to the incorporation of isotopically light metabolic CO2intoGlobigerina bulloidesresulting in high similarity between δ13C values ofUvigerinaandGlobigerina. It has been shown that the extremely high δ13C and very low δ18O ofGlobigerinoides trilobusclearly imply the influence of algal photosymbionts.

Palaega goedertorum, a fossil isopod (Crustacea) from late Eocene to early Miocene rocks of Washington State

1989 ◽  
Vol 63 (1) ◽  
pp. 73-80 ◽  
Author(s):  
Robert W. Wieder ◽  
Rodney M. Feldmann
Keyword(s):  
New Species ◽  
Deep Water ◽  
Late Eocene ◽  
Washington State ◽  
The State ◽  
Early Miocene ◽  
Pacific Region ◽  
Extant Species ◽  
A New Species ◽  
Subjective Synonym

A new species of fossil isopod, Palaega goedertorum, is described from late Eocene to early Miocene rocks of the Twin River Group, the Astoria Formation, and unit B of Wolfe and McKee (1968) in the state of Washington. These fossil forms are similar to living forms referred to the genus Bathynomus A. Milne-Edwards, 1879; hence, Bathynomus is considered a junior subjective synonym of Palaega Woodward, 1870. Since extant species of Palaega are known only from bathyal habitats, these occurrences tend to corroborate the deep-water paleoenvironmental setting of these rock units. This is the first report of Palaega from the eastern Pacific region.

Paleogeography of the Early Badenian connection between the Vienna Basin and the Carpathian Foredeep

2012 ◽  
Vol 4 (1) ◽  
Author(s):  
Rostislav Brzobohatý ◽  
Zdeněk Stráník
Keyword(s):  
Deep Water ◽  
Vienna Basin ◽  
Regional Geology ◽  
Teleost Species ◽  
Paleogeographic Reconstruction ◽  
Carpathian Foredeep ◽  
First Time ◽  
Recurrent Nature

AbstractThe paleogeographic reconstruction for an early Badenian connection of the Vienna Basin and the Carpathian Foredeep in the Mikulov area (Mikulov Gate) based on paleontological (otoliths) and geological (regional geology, tectonics) data has been provided. The ecologically homogenous deep water associations of otoliths in the most NW tip of the Vienna Basin (Sedlec HJ-2 Borehole) links up bathymetrically with nearly adequate otolith assemblages in the southernmost Moravian part of the foredeep. Ten meso- and bathypelagic teleost species have been identified in the Vienna Basin for the first time. Geological analyses proved inversion processes of recurrent nature along old faults of the NW-SE direction in the Dyje (Thaya) Depression. In the early Badenian the Mikulov Gate resulted from the sagging block of the Waschberg Zone. This marine channel was relatively deep (> 200m, as indicated by otoliths) and in all probability flooded an entire front of the nappes in this area.

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