Neogene Tectonics in Croatian Part of the Pannonian Basin and Reflectance in Hydrocarbon Accumulations

Malvić, Tomislav; Velić, Josipa

doi:10.5772/21270

Cited by 33 publications

(62 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lakes were mostly up to 200 m deep with approximately equal rates of sedimentation and subsidence [4] (Figure 7). This period also coincided with the second transtensional phase in the CPBS [44], generally beginning in the Late Pannonian (9.3-7.1 Ma) and continuing throughout the Early Pontian (7.1-5.6 Ma). Successive turbidity current events were the main depositional mechanisms in the Late Miocene [4, 17, 18, 44], when clastics were transported from the Eastern Alps to the CPBS by turbidity currents initiated by gravitational instability (sometimes accompanied by faulting) caused by extremely large detritus masses along structural ramps.…”

Section: Upper Miocene Depositional Environments and Processesmentioning

confidence: 99%

“…In the Late Pannonian and Early Pontian (9.3-5.6 Ma), and locally even from the Early Pannonian, depressions in the CPBS ( Figure 6) were elongated brackish lakes [44], sporadically connected by narrow tranches. Such depressions had been derived from Lake Pannon [45], which existed as an extensive lacustrine environment after the closure of the Central Paratethys [2, 44,46], transforming, in the Late Miocene, into an open lake system with active in-flows and out-flows of fresh water [47].…”

Section: Upper Miocene Depositional Environments and Processesmentioning

confidence: 99%

“…However, the eastern part of the Drava Depression is interesting as an area where Croatian and Hungarian units are correlated based on data from [2, 57,58] and published in [56]. The time scale follows [44,59]. Lithostratigraphic interpretation indicates that this zone is transitional between turbidite-dominated sedimentation in the Croatian sector and delta/ prodelta-dominated deposition in the Hungarian part.…”

Section: Lithostratigraphy Nomenclature In the Cpbsmentioning

confidence: 99%

“…Such depressions had been derived from Lake Pannon [45], which existed as an extensive lacustrine environment after the closure of the Central Paratethys [2, 44,46], transforming, in the Late Miocene, into an open lake system with active in-flows and out-flows of fresh water [47]. Sedimentation in Croatian brackish lakes was mostly described by simple heterogeneous deposition of two major lithofacies, which was supported with the Eastern Alps as the main psammitic detritus source.…”

Section: Upper Miocene Depositional Environments and Processesmentioning

confidence: 99%

See 3 more Smart Citations

Regional turbidites and turbiditic environments developed during Neogene and Quaternary in Croatia

Malvić¹

2016

Materials and Geoenvironment

View full text Add to dashboard Cite

The Croatian Neogene and Quaternary depositional sequences preserve a record of several different depositional environments with turbidite successions. These are turbiditic systems developed during the Late Miocene in the Croatian part of the Pannonian Basin System and during the Pliocene and Pleistocene in the northern Adriatic Sea. The shape, salinity and depths of depositional areas were significantly different in these two depressional areas, but both were fed mostly with Alpine detritus. Neogene turbidites with lacustrine pelitic sedimentation formed thick heterogeneous sequences of sandstones and marls (totalling several hundreds to some thousands of metres in thickness in different depressional parts) of Upper Miocene age in Northern Croatia. By contrast, Pliocene and especially Pleistocene turbidites of the northern Adriatic were deposited in a marine environment where the total thickness of sand and clay sequences can reach up to several thousand metres. In both cases, individual sandy or sandstone turbiditic sequences (events) can reach several tens of metres in thickness. These turbidite clastic sediments are important hydrocarbon reservoirs.Key words: siliciclastics, Pannonian Basin System, Po Depression, Upper Miocene, Pliocene, Quaternary IzvlečekNeogenska in kvartarna sedimentacijska zaporedja na Hrvaškem vsebujejo zapis o nekolikih različnih sedimentacijskih okoljih s turbiditnim zaporedjem. Gre za turbiditne sisteme, razvite za časa poznega miocena v celinskem hrvaškem delu, in v pliocenu in pleistocenu na območju severnega Jadranskega morja. Oblika sedimentacijskih prostorov, slanost in globine so se bistveno razlikovali med tema dvema udorinskima območjema, ki so se pa oboja zapolnjevala s pretežno alpskim drobirjem. Neogenski turbiditi jezerske pelitne sedimentacije so tvorili debela heterogena zaporedja peščenjakov in laporovcev (debeline nekaj sto do nekaj tisoč metrov v različnih delkih udorine) zgornjemiocenske starosti v severni Hrvaški. Nasprotno so bili pa odloženi pliocenski in zlasti pleistocenski turbiditi severnega Jadrana v morskem okolju, v katerem skupne debeline peščenih in glinenih zaporedij znajo doseči nekaj tisoč metrov. V obeh primerih znaša debelina posameznih turbiditnih dogodkov do nekaj deset metrov. Ti turbiditni klastični sedimenti so pomembni rezervoarji ogljikovodikov.

show abstract

Section: Upper Miocene Depositional Environments and Processesmentioning

confidence: 99%

Section: Upper Miocene Depositional Environments and Processesmentioning

confidence: 99%

Section: Lithostratigraphy Nomenclature In the Cpbsmentioning

confidence: 99%

Section: Upper Miocene Depositional Environments and Processesmentioning

confidence: 99%

See 2 more Smart Citations

Regional turbidites and turbiditic environments developed during Neogene and Quaternary in Croatia

Malvić¹

2016

Materials and Geoenvironment

View full text Add to dashboard Cite

show abstract

“…This analysis helped to determine the local duration of the first transpressional event in the Bjelovar Subbasin, i.e., could it be traced only in the Sarmatian in the CPBS, as Malvić and Velić (2011) assumed, or does it have a different time span? Analyzed chronostratigraphic intervals yielded durations of 3.4 Ma for the Badenian, 1.5 Ma for the Sarmatian, and 2.2 Ma for the Lower Pannonian.…”

Section: Ana Majstorović Bušićmentioning

confidence: 99%

Statistical analysis of Neogene sediment thickness deposited during the first transtensional and first transpressional evolutionary stages in the Bjelovar Sub-basin, Northern Croatia

Bušić¹

2011

Central European Geology

View full text Add to dashboard Cite

The Bjelovar Sub-basin is situated in Northern Croatia and constitutes the southwestern branch of the Drava Basin. The Neogene-Quaternary sedimentary section can be subdivided into three megacycles, which are separated by regional unconformities. The data analyzed in this study are related to the first megacycle, which is characterized by a tectonic-erosional unconformity above the Neogene basement (electric log, abbr. e-log marker Pt or Tg); its top is the regional e-log marker Rs7. It is generally assumed that the Rs7 marker separates Sarmatian and Pannonian sediments and indicates the period just after the first transtensional and first transpressional events. The youngest elog marker, Rs5, represents the Lower/Upper Pannonian boundary (in Croatian stratigraphic nomenclature) and more generally the early period of the second transtensional event. The lithology of the Lower and Middle Badenian is characterized by coarse and medium-grained sediments, while the Upper Badenian to Lower Pannonian section is dominantly pelitic as a result of flattening of the eroded paleorelief, as well as of reduced amounts of fans and energy. Thickness maps for the stratigraphic intervals Pt/Tg-Rs7 (4.9 Ma) and Rs7-Rs5 (2.2 Ma) were statistically analyzed using a regular grid with individual cells of 500 × 500 m. It is demonstrated that the first transpressional event in this sub-basin continued during the Lower Pannonian, causing a significant decrease of sediment thickness and a large unconformity in the east. Statistics based on histograms and averages confirmed that the first transtension and first transpression can be clearly distinguished by the presented methodology.

show abstract

The tectonic evolution of a critical segment of the Dinarides‐Alps connection: Kinematic and geochronological inferences from the Medvednica Mountains, NE Croatia

et al. 2015

View full text Add to dashboard Cite

The transition zone between the Alps and Dinarides is a key area to investigate kinematic interactions of neighboring orogens with different subduction polarities. A study combining field kinematic and sedimentary data, microstructural observations, thermochronological data (Rb‐Sr and fission track), and regional structures in the area of Medvednica Mountains has revealed a complex polyphase tectonic evolution. We document two novel stages of extensional exhumation. The first stage of extension took place along a Late Cretaceous detachment following the late Early Cretaceous nappe stacking, burial, and greenschist facies metamorphism. Two other shortening events that occurred during the latest Cretaceous‐Oligocene were followed by a second event of extensional exhumation, characterized by asymmetric top‐NE extension during the Miocene. Top‐NW thrusting took place subsequently during the Pliocene inversion of the Pannonian Basin. The Cretaceous nappe burial, Late Cretaceous extension, and the Oligocene(‐Earliest Miocene) contraction are events driven by the Alps evolution. In contrast, the latest Cretaceous‐Eocene deformation reflects phases of Dinaridic contraction. Furthermore, the Miocene extension and subsequent inversion display kinematics similar with observations elsewhere in the Dinarides and Eastern Alps. All these processes demonstrate that the Medvednica Mountains were affected by Alpine phases of deformations to a much higher degree than previously thought. Similarly with what has been observed in other areas of contractional polarity changes, such as the Mediterranean, Black Sea, or New Guinea systems, the respective tectonic events are triggered by rheological weak zones which are critical for localizing the deformation created by both orogens.

show abstract

Neogene Tectonics in Croatian Part of the Pannonian Basin and Reflectance in Hydrocarbon Accumulations

Cited by 33 publications

References 19 publications

Regional turbidites and turbiditic environments developed during Neogene and Quaternary in Croatia

Regional turbidites and turbiditic environments developed during Neogene and Quaternary in Croatia

Statistical analysis of Neogene sediment thickness deposited during the first transtensional and first transpressional evolutionary stages in the Bjelovar Sub-basin, Northern Croatia

The tectonic evolution of a critical segment of the Dinarides‐Alps connection: Kinematic and geochronological inferences from the Medvednica Mountains, NE Croatia

Contact Info

Product

Resources

About