Mollusc assemblages of the Pontian and Dacian deposits from the Topolog-Argeş area (southern Carpathian foredeep – Romania)

Stoica, Marius; Lazăr, Iuliana; Vasiliev, Iuliana; Krijgsman, Wout

doi:10.1016/j.geobios.2006.11.004

Cited by 37 publications

(26 citation statements)

References 16 publications

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“…These conditions are met in a similar fashion for the orogens in the Paratethys realms such as the SE Carpathians, where a coeval large sea level drop associated with massive sedimentation has been reported for the Black Sea [see Dinu et al, 2005;Gillet et al, 2007]. This MSC middle Pontian sea level drop recorded in the Paratethys domain [e.g., Stoica et al, 2007] has potentially induced a shift of depocenters toward the deeper parts of the Black Sea, which is coeval with enhanced erosion of the orogen and exposed parts of the basins.…”

Section: Collision Mechanicsmentioning

confidence: 71%

From nappe stacking to out‐of‐sequence postcollisional deformations: Cretaceous to Quaternary exhumation history of the SE Carpathians assessed by low‐temperature thermochronology

Merten¹,

Maţenco

Foeken

et al. 2010

Tectonics

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[1] Apatite fission track (AFT) and (U-Th)/He (AHe) thermochronology have been combined to constrain the exhumation history of the SE Carpathians. Cooling ages generally decrease from Cretaceous for the internal basement nappes (AFT ages), to Miocene-Quaternary (AFT and AHe, respectively) for the external sedimentary wedge. The AFT and AHe data show a Paleogene age cluster, which confirms a suspected but never demonstrated tectonic event. The new data furthermore suggest that the SE Carpathians have been affected by a middle Miocene exhumation phase related to continental collision, which occurred at rates of ∼0.8 mm/yr, similar to the one previously inferred for the East Carpathians. The SE Carpathian tectonic evolution, however, is overprinted by two younger exhumation events in the Pliocene-Pleistocene. The first exhumation phase (latest Miocene-early Pliocene) occurred at high exhumation rates (∼1.7 mm/yr) and is interpreted as a tectonic event and/or associated with a sea level drop in the Paratethys basins during the Messinian low stand. The youngest recorded tectonic phase suggests rapid Pleistocene exhumation (∼1.6 mm/yr) and is interpreted to represent crustal-scale shortening different in mechanics from collisional processes. The data suggest that the SE Carpathians did not develop as a typical double-vergent orogenic wedge; instead, exhumation was related to a foreland-vergent sequence of nappe stacking during collision and was subsequently followed by a large out-of-sequence shortening event truncating the already locked collisional boundary.

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Section: Collision Mechanicsmentioning

confidence: 71%

From nappe stacking to out‐of‐sequence postcollisional deformations: Cretaceous to Quaternary exhumation history of the SE Carpathians assessed by low‐temperature thermochronology

Merten¹,

Maţenco

Foeken

et al. 2010

Tectonics

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“…0.2 Ma, which is the time span between the Middle and Upper Pontian (e.g. Stoica et al ., ). Obviously, this is also dependent on the available accommodation space in the trapping basin and other parameters such as the lithospheric strength or the balance between precipitation and evaporation (Leever et al ., ).…”

Section: Discussionmentioning

confidence: 99%

Effects of large sea‐level variations in connected basins: theDacian–Black Sea system of theEasternParatethys

et al. 2012

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Sea‐level changes provide an important control on the interplay between accommodation space and sediment supply, in particular, for shallow‐water basins where the available space is limited. Sediment exchange between connected basins separated by a subaqueous sill (bathymetric threshold) is still not well understood. When sea‐level falls below the bathymetric level of this separating sill, the shallow‐water basin evolution is controlled by its erosion and rapid fill. Once this marginal basin is filled, the sedimentary depocenter shifts to the open marine basin (outward shift). With new accommodation space created during the subsequent sea‐level rise, sediment depocenter shifts backwards to the marginal basin (inward shift). This new conceptual model is tested here in the context of Late Miocene to Quaternary evolution of the open connection between Dacian and Black Sea basins. By the means of seismic sequence stratigraphic analysis of the Miocene‐Pliocene evolution of this Eastern Paratethys domain, this case study demonstrates these shifts in sedimentary depocenter between basins. An outward shift occurs with a delay that corresponds to the time required to fill the remaining accommodation space in the Dacian Basin below the sill that separates it from the Black Sea. This study provides novel insight on the amplitude and sedimentary geometry of the Messinian Salinity Crisis (MSC) event in the Black Sea. A large (1.3–1.7 km) sea‐level drop is demonstrated by quantifying coeval sedimentation patterns that change to mass‐flows and turbiditic deposits in the deep‐sea part of this main sink. The post‐MSC sediment routing continued into the present‐day pattern of Black Sea rivers discharge.

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“…Krijgsman et al (2010) suggested that the Dacian Basin sea-level dropped by at least 50 m during the Messinian crisis, whereas in the deep water zone in the western Dacian Basin, Leever et al (2010b) estimated, using seismic data, that the water-level dropped by about 100 m. Seismic data from Black Sea indicate a significant (> 1000 m) fall of the sea level around the time of the Messinian Salinity Crisis and possible transfer of sediment from the Carpathians to the Black Sea (Bartol et al, 2012;Munteanu et al, in press). The Dacian Basin base level probably falls around Messinian Salinity Crisis (Stoica et al, 2007;Leever, 2008) but without a complete switch to fluvial sedimentation (Jipa and Olariu, 2009). It is possible that the Upper Pontian-Dacian sediments mapped in the Black Sea (Munteanu et al, in press) are partially derived from the Eastern Carpathians.…”

Section: Dacian Basin As Part Of the Paratethysmentioning

confidence: 99%

Sediment routing in a semi-enclosed epicontinental sea: Dacian Basin, Paratethys domain, Late Neogene, Romania

Jipa

Olariu

2013

Global and Planetary Change

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Mollusc assemblages of the Pontian and Dacian deposits from the Topolog-Argeş area (southern Carpathian foredeep – Romania)

Cited by 37 publications

References 16 publications

From nappe stacking to out‐of‐sequence postcollisional deformations: Cretaceous to Quaternary exhumation history of the SE Carpathians assessed by low‐temperature thermochronology

From nappe stacking to out‐of‐sequence postcollisional deformations: Cretaceous to Quaternary exhumation history of the SE Carpathians assessed by low‐temperature thermochronology

Effects of large sea‐level variations in connected basins: theDacian–Black Sea system of theEasternParatethys

Sediment routing in a semi-enclosed epicontinental sea: Dacian Basin, Paratethys domain, Late Neogene, Romania

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