Facies analysis of the Balta Formation: Evidence for a large late Miocene fluvio-deltaic system in the East Carpathian Foreland

Matoshko, Anton; Matoshko, Andrei V.; Leeuw, Arjan de; Stoica, Marius

doi:10.1016/j.sedgeo.2016.08.004

Cited by 18 publications

(27 citation statements)

References 54 publications

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“…The eastern Dacian outcrops indicate shallow‐water deposits (Jipa & Olariu, ). The 100–200 m thick late Miocene clinoforms and shallow‐water facies suggest equilibrium between subsidence and sediment supply from small rivers (Matoshko, Matoshko, Leeuw, & Stoica, ) similar to the present‐day Danube northern tributaries.…”

Section: The Dacian Basin During the Upper Miocenementioning

confidence: 98%

The Danube River inception: Evidence for a 4 Ma continental‐scale river born from segmented ParaTethys basins

2017

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Section: The Dacian Basin During the Upper Miocenementioning

confidence: 98%

The Danube River inception: Evidence for a 4 Ma continental‐scale river born from segmented ParaTethys basins

2017

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“…How large parts of the brackish-marine sedimentary environment of the Paratethys were converted into new land remains a picture painted by rough strokes. Nevertheless, the last study (Matoshko et al 2016) confirmed that fluvial formations are very informative objects for the comprehension of sedimentation and morphogenesis in the vicinity of the landsea borderline during basin retreat. During the late Miocene, a large-scale fluvio-deltaic system known as the Balta Formation (Matoshko et al 2016) developed in the East Carpathian foreland (hereafter ECF).…”

Section: Introductionmentioning

confidence: 77%

The Plio–Pleistocene Demise of the East Carpathian Foreland Fluvial System and Arrival of the Paleo-Danube To The Black Sea

Matoshko¹,

Matoshko²,

Leeuw³

2019

Geologica Carpathica

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This paper studies the Porat Formation (Fm.), which was deposited along the NE margin of the Dacian Basin part of the East Carpathian foreland (ECF) during the Pliocene and Early Pleistocene. We use a review of stratigraphic data in combination with lithofacies and sedimentary architecture analysis to interpret the Porat Fm. as a large sandy alluvial basin infill with an aggradational structure, consisting of cyclic successions of shallow sandy high-energy braided rivers. Aggradation of the Porat Fan was governed by subsidence of the Dacian Basin, along with a northerly supply of water and sediment from the Carpathians. Along the southern margin of the area the fan entered the Reni–Izmail-Trough, which formed the periodically active gateway between the Black Sea and Dacian basins. Along this trough, the Porat Fm. is developed in a different facies, discerned as the Dolynske Member (Mb. 1), which accumulated in the channel of a large river interpreted as the paleo-Danube. According to mammal stratigraphy of the Porat Fm. this continental-scale river had reached the area by the Gelasian to early Calabrian. The Porat alluvial infill indicates a stable water supply from the Carpathians, which explains the ecologically mixed fauna in its deposits: moistened forested alluvial plain-valleys were present between the zonally semi-arid steppe interfluves. The Porat Fm. and the previously studied late Miocene Balta Fm. are key elements for further in-depth study of the terrestrial evolution (tectonic–sedimentary–relief) of the ECF and north-western Black Sea coastal regions.

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“…The well‐organized internal structure of FA2, including large‐scale cross‐strata, supports interpretation of stable trunk channels, as opposed to FA3 representing short‐lived, subordinate channel elements related to episodic flooding events (e.g. Gugliotta et al ., ; Matoshko et al ., ). Width to thickness ratios of channel fills calculated for FA2 and FA3 yield 19 and 13, respectively.…”

Section: Discussionmentioning

confidence: 97%

“…Ripple cross‐laminated facies are indicative of near emergent conditions at channel margins and typically represent accretionary bar tops (e.g. Sambrook Smith et al ., ; Matoshko et al ., ). The absence of bioturbation is consistent with a high energy, unstable fluvial setting.…”

Section: Sedimentologymentioning

confidence: 97%

Syn‐rift sequence development in a fault‐controlled embayment (Early Permian Irwin River Coal Measures, Northern Perth Basin, Western Australia)

Dillinger

George

2019

Sedimentology

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Stratigraphic patterns and sequence development in tectonically active extensional basins remain poorly documented in comparison with passivemargin settings. Rift basin fills are generally characterized by coarseningupward trends in response to the rapid creation of accommodation by extensional faulting, and the progressive filling of graben during more quiescent periods. The Early Permian Irwin River Coal Measures in the Northern Perth Basin (Western Australia) record a complex stratigraphic arrangement of conglomerate, sandstone, mudstone and coal, and have been attributed to delta plain depositional environments that developed in a cool-temperate climatic setting during syn-rift activity. Sedimentary analysis of outcrop and core data from the fault-bounded Irwin Terrace is used to distinguish nine facies associations reflecting deposition in braided rivers, fixed-anastomosed channel belts, tide-influenced coastal environments and storm-affected distal bays. The broader depositional system is interpreted as a morphologically asymmetrical tide-dominated embayment with a fluvial and wave influence. The stratigraphic architecture of the Irwin River Coal Measures was strongly influenced by the evolving rift basin margin. Fault reactivation of the major basin-bounding Darling Fault in the early syn-rift phase caused footwall uplift and the inception of transverse palaeo-valleys occupied by braided fluvial systems. Fault block subsidence during the subsequent balanced, backstepping and drowning phases resulted in a dominantly retrogradational stacking pattern indicating progressive flooding of marginal-marine areas and culminating in deposition of distal marine elements. In the active rift basin, it is proposed that preservation of a shallow-marine syn-rift sequence was promoted by the geomorphological confinement of the embayed system increasing tidal current acceleration and hampering transgressive ravinement. The proposed sequence model demonstrates that transgressive successions can develop in the early syn-rift phase in response to footwall uplift and tectonic subsidence. The syn-rift sequence recording the filling of an embayment on a rift basin margin may be applied in similar tectonic and/or depositional contexts worldwide.

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Facies analysis of the Balta Formation: Evidence for a large late Miocene fluvio-deltaic system in the East Carpathian Foreland

Cited by 18 publications

References 54 publications

The Danube River inception: Evidence for a 4 Ma continental‐scale river born from segmented ParaTethys basins

The Danube River inception: Evidence for a 4 Ma continental‐scale river born from segmented ParaTethys basins

The Plio–Pleistocene Demise of the East Carpathian Foreland Fluvial System and Arrival of the Paleo-Danube To The Black Sea

Syn‐rift sequence development in a fault‐controlled embayment (Early Permian Irwin River Coal Measures, Northern Perth Basin, Western Australia)

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