The Iváň Canyon, a large Miocene canyon in the Alpine-Carpathian Foredeep

Dellmour, Rudolf; Harzhauser, Mathias

doi:10.1016/j.marpetgeo.2012.07.001

Cited by 19 publications

(23 citation statements)

References 18 publications

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“…The canyon fill shows a similar sequence of basal clastic sediments overlain by clays, dated as 16.5-16.3 Ma (Dellmour & Harzhauser 2012). This member is separated from the overlying Mid Badenian sediments by an unconformity (Adámek et al 2003) and is regarded as Early Badenian (according to our definition) in contrast to Dellmour & Harzhauser (2012). The basal siliciclastic sediments underlying the Grund Formation in the Carpathian Foredeep of Moravia represent the Early Badenian according to the nannoflora (Švábenická 2002;Tomanová-Petrová & Švábenická 2007).…”

Section: Timing Of the Regional Badenian Stage (Middle Miocene Cenmentioning

confidence: 94%

Timing of the Middle Miocene Badenian Stage of the Central Paratethys

Hohenegger

Ćorić

Wagreich

2014

Geologica Carpathica

126

101

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Abstract:A new and precisely defined chronometric subdivision of the Badenian (Middle Miocene, regional stage of Central Paratethys) is proposed. This uses global events, mainly geomagnetic polarity reversals as correlated chronometric boundaries, supported by climatic and sea-level changes in addition to isotope events and biostratigraphic data. The Karpatian/ Badenian boundary lies at 16.303 Ma, at the top of Chron C5Cn.2n, which is near the base of the Praeorbulina sicana Lowest-occurrence Zone (LOZ). The Badenian/Sarmatian boundary is placed at the top of polarity Chron C5Ar.2n, thus at 12.829 Ma. In relation to three sea level cycles TB 2.3, TB 2.4 and TB 2.5 and astronomically confirmed data, the Badenian can be divided into three parts of nearly equivalent duration. The Early Badenian as newly defined here ranges from 16.303 to 15.032 Ma (top of polarity Chron C5Bn.2n). The younger boundary correlates roughly to the base of the planktonic foraminifera Orbulina suturalis LOZ at 15.10 Ma, the HO (Highest Occurrence) of the nannofossil Helicosphaera ampliaperta at 14.91 Ma (NN4/NN5 boundary) and the Lan2/Ser1 sequence boundary at 14.80 Ma. The subsequent Mid Badenian ranges from 15.032 Ma to 13.82 Ma; the latter datum correlates with the base of the Serravallian, characterized by a strong global cooling event reflected in the oxygen isotope event Mi3b. The main part of cycle TB 2.4 falls into the Mid Badenian, which can be subdivided by a short cooling event at 14.24 Ma during the Middle Miocene Climate Transition (14.70 to 13.82 Ma). The HCO (Highest common occurrence) of the nannofossil Helicosphaera waltrans at 14.357 Ma supports this division, also seen in the tropical plankton Zones M6 Orbulina suturalis LOZ and M7 Fohsella peripheroacuta LOZ that correspond roughly to the lower and upper Lagenidae zones in the Vienna Basin, respectively. The Late Badenian is delimited in time at the base to 13.82 Ma by the Langhian/Serravallian boundary and at the top by the top of polarity Chron C5Ar.2n at 12.829 Ma. The Mediterranean Langhian/Serravallian boundary can be equated with the Mid/Late Badenian boundary at 13.82 Ma. However, the Karpatian/Badenian boundary at 16.303 Ma, a significant event easily recognizable in biostratigraphy, paleoclimate evolution and sequence stratigraphy, cannot be equated with the proposed global Burdigalian/Langhian, and thus Early/Middle Miocene boundary, at 15.974 Ma.

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Section: Timing Of the Regional Badenian Stage (Middle Miocene Cenmentioning

confidence: 94%

Timing of the Middle Miocene Badenian Stage of the Central Paratethys

Hohenegger

Ćorić

Wagreich

2014

Geologica Carpathica

126

101

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“…Although the position of studied coarse grained deltas generally coincides with eastern wall of the Karpatian Iváň canyon (Dellmour & Harzhauser 2012), the studied deltas are not parts of the canyon infill. The top part of the canyon was eroded around the Early/Middle Miocene boundary, capped by marine marls during the subsequent early Middle Miocene transgression, and also the seismic data does not show the presence of deltaic foresets (see Dellmour & Harzhauser 2012). However, presence of this structure might have affected the predominant Neogene drainage system of the area (differential subsidence and more rapid formation of the accommodation space) and the actual position of the deltas.…”

Section: Novosedlymentioning

confidence: 87%

“…(Brzobohatý & Cicha 1993). The study area is located above the Iváň canyon, which represents a shelf-indenting canyon that formed due to a combination of isostatic rebound along a terminating thrust front and sea-level change during the terminal Early Miocene/ Karpatian (Dellmour & Harzhauser 2012).…”

Section: Introductionmentioning

confidence: 99%

Lower Badenian coarse-grained Gilbert deltas in the southern margin of the Western Carpathian Foredeep basin

Nehyba¹

2018

Geologica Carpathica

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Two coarse-grained Gilbert-type deltas in the Lower Badenian deposits along the southern margin of the Western Carpathian Foredeep (peripheral foreland basin) were newly interpreted. Facies characterizing a range of depositional processes are assigned to four facies associations -topset, foreset, bottomset and offshore marine pelagic deposits. The evidence of Gilbert deltas within open marine deposits reflects the formation of a basin with relatively steep margins connected with a relative sea level fall, erosion and incision. Formation, progradation and aggradation of the thick coarse-grained Gilbert delta piles generally indicate a dramatic increase of sediment supply from the hinterland, followed by both relatively continuous sediment delivery and an increase in accommodation space. Deltaic deposition is terminated by relatively rapid and extended drowning and is explained as a transgressive event. The lower Gilbert delta was significantly larger, more areally extended and reveals a more complicated stratigraphic architecture than the upper one. Its basal surface represents a sequence boundary and occurs around the Karpatian/Badenian stratigraphic limit. Two coeval deltaic branches were recognized in the lower delta with partly different stratigraphic arrangements. This different stratigraphic architecture is mostly explained by variations in the sediment delivery and /or predisposed paleotopography and paleobathymetry of the basin floor. The upper delta was recognized only in a restricted area. Its basal surface represents a sequence boundary probably reflecting a higher order cycle of a relative sea level rise and fall within the Lower Badenian. Evidence of two laterally and stratigraphically separated coarse-grained Gilbert deltas indicates two regional/basin wide transgressive/regressive cycles, but not necessarily of the same order. Provenance analysis reveals similar sources of both deltas. Several partial source areas were identified (Mesozoic carbonates of the Northern Calcareous Alps and the Western Carpathians, crystalline rocks of the eastern margin of the Bohemian Massif, older sedimentary infill of the Carpathian Foredeep and/or the North Alpine Foreland Basin, sedimentary rocks of the Western Carpathian/Alpine Flysch Zone).

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“…2). Seismic logs indicate a maximum thickness of up to 1000 m for the Laa Formation, which displays a general coarsening-upward trend (Roetzel and Schnabel, 2002;Adamek et al, 2003;Dellmour and Harzhauser, 2012).…”

Section: Geological Settingmentioning

confidence: 98%

“…The Laa Formation corresponds to the lower to middle Karpatian (17.2-16.5 Ma;Dellmour and Harzhauser, 2012) of the regional chronostratigraphic scheme of the Central Paratethys. Grunert et al (2012Grunert et al ( , 2010b) suggest a total range of 17.2 to 15.9 Ma for the Karpatian (Fig.…”

Section: Geological Settingmentioning

confidence: 99%

Two distinct decadal and centennial cyclicities forced marine upwelling intensity and precipitation during the late Early Miocene in central Europe

2015

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Abstract. Within a 5.5 m thick succession of Upper Burdigalian (Karpatian) sediments in the North Alpine Foreland Basin (NAFB; Austria), dated to CNP-zone NN4, a high-resolution section was logged continuously. One hundred samples were taken with a resolution of ~10 mm (approximating ~17 years) per layer and analyzed using an integrated multi-proxy approach. Earlier analyses of geochemistry and calcareous nannoplankton assemblages hint at small-scale, short-term variations in paleoenvironmental conditions, such as water-column stratification, primary productivity, organic matter flux, bottom-water oxygenation, freshwater influx, and changes in relative sea level. The results indicate a highly dynamic shallow marine setting that was subject to high-frequency environmental changes on a decadal to centennial scale. Time-series analyses on nine different proxy data sets using REDFIT analysis and wavelet spectra were applied to resolve a possible cyclic nature of these variations. Analyses revealed that different proxies for precipitation, upwelling intensity, and overall productivity were likely controlled by different cyclicities. A best-fit adjustment of the likely sedimentation rates within the high-resolution section resulted in periodicities fitting well with the Lower (~65 years) and Upper (~113 years) Gleissberg cycle as well as the Suess/de Vries cycle (~211 years). The section covers a time span of ~1190 years based on the correlation with solar cycles, which resulted in an estimated sedimentation rate of 575 mm kyr−1. For the first time, short-term climate variability on a decadal to centennial scale is resolved in Lower Miocene shallow marine laminated sediments in a land-based section. The results hint at a close relationship between climate variability and solar forcing during the Late Burdigalian. Moreover, accepting that these cyclicities are indeed of solar origin, this would indicate that precipitation was driven by the two Gleissberg cycles, while upwelling was driven by the Suess cycle. Furthermore, proxies for primary productivity were influenced by both cycles, although the Suess cycle exerts dominant control, reflecting a stronger influence of upwelling on primary productivity.

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The Iváň Canyon, a large Miocene canyon in the Alpine-Carpathian Foredeep

Cited by 19 publications

References 18 publications

Timing of the Middle Miocene Badenian Stage of the Central Paratethys

Timing of the Middle Miocene Badenian Stage of the Central Paratethys

Lower Badenian coarse-grained Gilbert deltas in the southern margin of the Western Carpathian Foredeep basin

Two distinct decadal and centennial cyclicities forced marine upwelling intensity and precipitation during the late Early Miocene in central Europe

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