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Упит dcterms_subject_txt:dip-slip faults

95 items

  • Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations

    Ivana Vasiljević, Snežana Ignjatović, Branislav Sretković (2024)
    The type of dip-slip faults can be assessed based on the analysis of vertical gravity gradients. Theoretically, just a simple comparation of the gradient extreme values can give us an answer whether the fault is normal or reverse (thrust). Practical application of this method is far more complicated and the results depend on a number of parameters, such as a complexity of geological setting, the quality of gravity data, dip angle and displacement of the fault, density contrast, etc. ...
    dip-slip faults, vertical gravity gradients, field data analysis
    ... vertical and subvertical dip- slip faults easily recognizable on the vertical gravity gradient profiles and maps. Four basic situations connected to the inclined faults are presented on Fig. 1 and Fig. 2, though some authors (Essa et al., 2021) differentiate more types of faults in relation to their ...
    ... in practice. For the inclined dip-slip #faults, position of the zero value moves from the fault line (the shallowest point of the fault in the models on Fig. 1 and Fig. 2, indicated by the dashed line on the graphs) depending on a dip angle of the fault. As the dip decreases, the fault line moves ...
    ... the appropriate method. 86 METHOD OF INVESTIGA TION Faults often generate strong gravity gradients. Vertical gravity gradients (VGG) are particularly sensitive to faults. In the case of sufficient vertical displacement along the dip-slip fault, that creates detectable latera! rock density contrast ...

  • Geoloski profil planine Avale (severna Šumadija) - uvid u litostratigrafiju i tektonske strukture

    Marinko Toljić, Bojan Glavaš-Trbić, Maja Maleš, Nikola Ranđelović (2022)
    Mezozojske formacije Šumadije dele tektonsko-stratigrafsku evoluciju južnijih delova suture jedinica Adrijskog i Evropskog afiniteta, uključujući gornjojursku obdukciju, krednu subdukciju i paleogenu kontinentalnu koliziju. Finalni rezultat dugovremene evolucije u geodinamički složenom ambijentu su komplikovani tektonski i litostratigrafski odnosi različitih mezozojskih formacija suture. Geološki profil kroz planinu Avalu omogućava uvid u skoro potpunu sukcesiju mezozojskih formacija i prostorne pozicije i kinematiku značajnih tektonskih struktura najsevernijih segmenata suture u Šumadiji. U tektonskom kontekstu, mezozojske formacije okoline Beograda najčešće su interpretirane kao deo Istočne ...
    sutura, parafliš, bazalna navlaka, transkurentni rased

  • Understanding partitioning of deformation in highly arcuate orogenic systems: Inferences from the evolution of the Serbian Carpathians

    Nemanja Krstekanić, Liviu Matenco, Marinko Toljić, Oleg Mandić, Uroš Stojadinović, Ernst Willingshofer (2020)
    orogeneza, oroklini, višesmerna ekstenzija, transkurentna kretanja, Srpski Karpati
    ... geological map of former Yugoslavia, scale 1:100.000). Faults colored in purple are thrusts active during this phase, light green faults are active strike-slip faults, while black faults are other major faults in the area. Suggested faults or faults covered by Neogene sediments are dashed. Dark green ...
    ... of structures associated to late Miocene shortening. Faults colored in red are active thrusts during this contraction and green faults are active strike-slip faults. Black faults are other major faults in the area. Suggested faults or faults covered by Neogene sediments are dashed. (For interpretation ...
    ... with lower hemisphere stereoplots of structures associated to regional strike- slip deformation. Faults colored in green are active during this phase. Black faults are other major faults in the area. Suggested faults or faults covered by Neogene sediments are dashed. (For interpretation of the references ...

  • Strain partitioning in a large intracontinental strike-slip system accommodating backarc-convex orocline formation: The Circum-Moesian Fault System of the Carpatho-Balkanides

    Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2022)
    oroklini, raspodela deformacija, transkurentna kretanja, Karpato-balkanidi, Cirkum-mezijski rasedni sistem
    ... of coeval strike- slip, thrust and normal faults. This system represents one of the largest European intracontinental strike-slip deformation zones, with a northward-increasing accumulated 140 km dextral offset along previously known and newly found faults. These strike-slip faults transfer a significant ...
    ... gouge. Faults measured in outcrops are located within or correlated with faults at map-scale with the same kinematics. Their genetic interpretation follows the stereonet legend: 1 - faults parallel with the main map-scale dextral strike-slip fault, 2 - clockwise rotated dextral strike-slip faults within ...
    ... hemisphere stereographic projections of measured faults and foliations within fault gouge associated with the Sokobanja-Zvonce and Rtanj-Pirot strike-slip faults. The location of the map is displayed in Fig. 2. Faults covered by Neogene sediments or faults with unclear prolongation are dashed. Numbered ...

  • Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides

    Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)
    analogno modelovanje, raspodela deformacija, geometrija indentera, Černa i Timok rasedni sistem
    ... partitioning Strike-slip Indenter geometry Cerna and Timok faults system A B S T R A C T Large-scale strike-slip faults are associated with significant strain partitioning in releasing/restraining bends and often display map-view curvatures ending in horse-tail geometries. Such faults are commonly ...
    ... the strike-slip to the thrusting domain where M1 shows a gradual change from thrusting to strike-slip deformation (Fig. 3e and f). In contrast, this transition is abrupt in M7 and defined by an array of small dextral faults with an important normal slip component (Fig. 4). These faults link to di ...
    ... Transition between strike-slip/transtension and thrusting South of the N–S oriented basin along the western indenter’s margin, the strike-slip deformation is distributed over numerous vertical to high- angle faults (Fig. 8c, e, cross-section c-c’). These faults have a normal slip component that decreases ...

  • Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation

    Taco Broerse, Nemanja Krstekanić, Cor Kasbergen, Ernst Willingshofer (2021)
    kontinentalna tektonika: kompresija, kontinentalna tektonika: ekstenzija, kontinentalna tektonika: transkurentni i transformni rasedi, pukotine, rasedi, zone snažnih deformacija, kinematika deformacija kore i omotača, teorijska mehanika, modelovanje
    ... the model indicate strike-slip faults. Normal and thrust faults result in topographic gradients, where normal faults have a visible scarp. Cross sections taken after the model finishes, combined with the top view images, provide information of the faults with localized slip. Video S1 contains a video ...
    ... shear zones, or faults, and we aim to interpret continuous deformation as localized deformation. Especially, if a large fraction of the deformation is localized along discrete faults, we would like to classify the deformation as due to slip on normal, strike-slip, or thrust faults. While faulting ...
    ... two types of intermediate oblique faults: transtension, where faults experience strike-slip (simple shear) and fault-perpendicular extension (normal faulting), and transpression, as combination of strike-slip and fault-perpendicular shortening (reverse/thrust faults, Sanderson & Marchini 1984). We do ...

  • Determining seismic hazard in slowly deforming region: Can we gather enough information from karst caves?

    Ana Mladenović, Jelena Ćalić (2021)
    Methods to determine seismic hazard in any region vary depending on the regional seismicity, but can be roughly grouped into two main groups: one based on probabilistic methods that use data about known seismicity in the region, and another, which is based on data related to the faulting processes and determination of seismically active faults. Both groups of methods are relatively good for seismically active regions. However, in regions of low seismic activity and slow deformations, there is neither ...

  • Investigating distant effects of the Moesian promontory: Brittle tectonics along the western boundary of the Getic unit (East Serbia)

    Ana Mladenović, Milorad D. Antić, Branislav Trivić, Vladica Cvetković (2019)
    In this study, we report evidence for brittle deformation in a part of the Carpatho–Balkan orogen, which is explained in terms of effects of the rigid Moesian promontory of the European plate on fault kinematics in East Serbia. We focus on the westernmost part of the Getic Unit of the East Serbian Carpatho–Balkanides, i.e. the Gornjak–Ravanica Unit, located between two main thrusts that were repeatedly activated from Early Cretaceous to recent times. We combine a new data set on ...
    Getikum, Mezijska jedinica, Karpato-balkanski orogen, krte deformacije, Gornjačko-ravanička jedinica

  • Determining seismic hazard in slowly deforming region: Can we gather enough information from karst caves?

    Ана Младеновић, Јелена Ћалић (2021)
    ... Therefore, investigations of faults and deformations on the field surface are very difficult, butinvestigations of neotectonically active faults inside the karst caves can give a lot moreinformation. In this abstract, we present evidence about the youngest and recently active faults in the region ofinterest ...
    ... ofinterest, based on data from karst caves. Age of activity of faults mapped inside the caves wasdetermined based on indicators of faults cutting speleothems, forming fault breccias thatincorporate cave sediments (broken speleothems), and based on speleogenetic considerations. Samples for radiometric dating ...
    ... dating have been collected, that will help to quantify fault activity rate. Preliminary results show that the research area is characterized by strike-slip tectonics, most likelyresulting from far-field stress generated by the collision of the Adriatic microplate, the Moesianindenter and the tectonic units ...

  • To what extent reactivated faults are (not) responsible for karst process: example from Serbian Carpatho-Balkanides?

    Ana Mladenović, Jelena Ćalić (2023)
    Carpatho-Balkanides represent part of the complex Dinaric – Carpatho – Balkan orogenic system, that geomorphologically dominates the central part of the Balkan Peninsula. The existence of this orogenic system is a result of closure of the Neotethys ocean and subsequent convergence of the Adriatic microplate and the Eurasian continent, that has been still active in the recent times. Such geodynamic characteristics conditioned complex tectonic structures, multiply reactivated during Late Cretaceous and Cenozoic times. The main aim of this work ...
    Carpatho-Balkanides, karst caves, reactivated faults, transpressional tectonics

  • Strain partitioning around an indenter during oroclinal bending: kinematics of the Circum-Moesian fault system of the Carpatho-Balkanides

    Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2021)
    ... of strain partitioning during oroclinal bending. It includes thecurved Cerna and Timok faults that cumulate up to 100 km of dextral offset, the lower offsetSokobanja-Zvonce and Rtanj-Pirot dextral strike-slip faults, associated with orogen parallelextension that controls numerous intra-montane basins ...
    ... focusing on kinematics and geometry of large-scale faultswithin the Circum-Moesian fault system. Our structural analysis shows that the major strike-slip faults are composed of multi-strandgeometries associated with significant strain partitioning within tens to hundreds of metres widedeformation zones. ...
    ... Circum-Moesian fault system changes from transtensionalin the north, where the formation of numerous basins is controlled by the Cerna or Timok faults,to strike-slip and transpression in the south, where transcurrent offsets are gradually transferredto thrusting in the Balkanides. The characteristic feature ...

  • The Late Devonian contraction along the Precaspian Basin north margin: Transpressional range building in the intracratonic domain

    Novak Novčić, Marinko Toljić (2023)
    The evolution of intraplate sedimentary basins located in the vicinity of an active convergent plate boundary is often controlled by the collisional dynamics of the adjacent orogen. The transfer of compression from the orogen to the platform's interior results in the formation of complex structural geometry and kinematics that often reactivate older crustal faults, focus far-field stresses and control the evolution of associated sedimentary basins. One place where this localisation can be optimally understood is the Precaspian Basin, situated ...
    Intrakratonske deformacije, transpresija, kosa kompresija, krustalni rasedi, intrakratonski transfer stresa, kontrakcioni blokovi

  • Speleo‐morphology and tectonic processes – What can be seen in slowly deforming regions?

    Ana Mladenović, Jelena Ćalić (2022)
    There are a lot of methods used to determine tectonic process active in a region, and they vary depending on the purpose of the research. However, a number of them cannot be used in slowly deforming regions, because the effects of active tectonic process on the rocks in such regions could be negligible. This is especially true for the recently active tectonics in such regions, since most of the recently active tectonic structures never reach the surface. Because of ...

  • Manipulation with Spatial Data to Define Neotectonic Active Faults in the Čačak – Kraljevo basin (Serbia)

    Mladenović Ana, Petrović Dragana (2012)

  • Correaltion of different types of spatial data to define neotectonic active faults in the čačak–kraljevo basin (western Serbia).

    Mladenović Ana, Petrović Dragana (2013)

  • Using gravity data to define structural correlation affecting the formation of Neogene basins

    Snežana Ignjatović, Ivana Vasiljević, Branisav Sretković, Milanka Negovanović (2023)
    A gravity survey can help to define the structural correlation in the study area. The structures that have influenced the development of Neogene basins can be defined using gravity data. By applying mathematical transformations to gravity data, the geological structures (faults, nappes, etc.) that impacted the formation of Neogene basins can be defined. We have taken the part of the Dinarides as the test region. The paper presents the results obtained using the procedure residual, vertical gradient, and total ...
    gravity survey, mathematical transformation, basin

  • Pokazatelji recentne tektonske aktivnosti u speleološkim objektima Dževrinske grede (istočna Srbija)

    Ana Mladenović, Jelena Ćalić (2022)
    Sistem Timočkog raseda predstavljen je sistemom desnih transkurentnih raseda generalnog pružanja sever – jug, koji su bili aktivni u periodu oligocena i miocena u okviru Karpato-balkanskog orogena. Početak njihove aktivnosti vezuje se za rotaciju tektonskih jedinica Karpato-balkanida (Dacia Mega Unit) oko rigidne Mezijske jedinice. Aktivnost ovih transkurentnih raseda je akomodirala ovu rotaciju, pa se smatra da je kumulativno kretanje duž Timočkog raseda tokom perioda njegove aktivnosti bilo do 100 km. Usled kompleksnih tektonskih rotacija, rasedi ovog sistema doveli su ...
    Тимочки расед, Џеврински расед, Балта расед, спелеолошки објекат

  • Defining structural correlation using of total horizontal gradient

    Snežana Ignjatović, Ivana Vasiljević, Milanka Negovanović (2021)
    Gravity data can help to define the structural correlation along significant vertical shifts. The different procedures of mathematical transformations on gravity data are applied to define structural correlations. The paper presents the results obtained using the procedure total horizontal gradient on gravity data. The application of the total horizontal gradient helped to detect contacts with a large dip angle (vertical or subvertical contacts), which can be interpreted as faults. The study area located in the wider area of the ...
    gravity data, gradient, vertical contact

  • Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone

    Emő Márton, Marinko Toljić, Vesna Cvetkov (2022)
    The Vardar Zone is a product of the Triassic-Jurassic opening of the Neotethys, Jurassic obduction, Late Cretaceous/Paleogene consumption of the oceanic crust and continental collision. During the last process, the Eastern Vardar Zone was thrust over the Central and eventually both onto the Western Vardar Zone. The present paleomagnetic and structural study provided new results from the first two zones in the Belgrade area. The younger set of data, together with published ones from the third zone, provide firm ...
    Adria–Europe suture, Vardar Zone, Paleomagnetism, Thrusting, Vertical axis rotation

  • Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)

    Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević, Miloš Radonjić (2019)
    Mt. Avala is located on the southern margin of the Pannonian basin (SPB), a border zone between the uplifted morphostructures of the Dinarides and Carpathian-Balkanides. Similar to the Pannonian basin, tectonostratigraphic evolution of the Mt. Avala area during the last 23 Ma has is characterized by syn- and post-rifting processes as well as tectonic inversion. Here, we present the results of field investigations of the Miocene‒Pliocene dynamics that led to different spatial positions of the same stratigraphic units (e.g. ...
    мио-плиоценска геодинамика, јужни Панонски басен, Авалски и Торлак хорст, Белопоточки трог, Србија
    ... siliferous sands and limestones (Fig. 18). This structure with a measured dip direction and dip angle of the fault (214/48) is part of the reverse faults which were reactivated in the NE-SW ori- ented compressional stress-field. Faults of this direction are sta- tistically recognized as linear structures ...
    ... study area, the Rakovica (RF), Beli Potok (BP) and Torlak (TO) faults are recognized within this system. They are responsible for the dissection of the older faults from the F1 system (Fig. 17a) and along these ENE – WSW oriented faults the block structures with pronounced vertical movements were ...
    ... n in previous research, as well as our own very poor data, the measurements of structural elements were not collected systematically (e.g. dip angle and dip direction, fault traces, geometric and kinematic properties, etc.). Scarce individual measurements of bedding plane or fault trace were performed ...