Authors: Stojadinovic, U., Randjelovic, N., Toljić, M., Trivić, B., Maleš. M. & Grujovski-Stanisavljević, M.

Abstract
The Timok Magmatic Complex (TMC), part of the Late Cretaceous Apuseni–Banat–Timok–Srednogorie (ABTS) volcano-sedimentary belt in the Carpatho-Balkanides, represents a case study of a basin developed within the overriding plate above two adjacent subduction systems of opposite polarity, the NE-dipping Neotethys and the W-dipping Ceahlău–Severin. This study reconstructs the tectonic evolution of the TMC basin through field-based structural and kinematic analyses to constrain the mechanisms controlling deformation in a multi-slab setting. The results define three successive deformation phases. The oldest phase records Late Cretaceous extension and asymmetric basin formation, characterized by strong strain localization along upper-crustal normal faults. This phase was controlled by rollback of the Neotethyan slab, enabling efficient transfer of deformation into the upper crust and direct coupling between active faulting and calc-alkaline magmatism. The subsequent phase corresponds to the latest Cretaceous–earliest Paleogene basin inversion, expressed by a progressive transition from contractional to transpressional deformation. This stage was controlled by the closure of the Ceahlău–Severin Ocean and the onset of Carpathian collision, with shortening localized along inherited extensional basin structures. The youngest phase reflects Oligocene–Middle Miocene post-orogenic deformation. It is characterized by strain partitioning and strike-slip faulting related to oroclinal bending of the Carpatho-Balkanides, which controlled segmentation and sedimentary reorganization of the TMC basin and the broader ABTS belt. Keywords: Fault kinematics; Deformational evolution; Slab interaction; Timok Magmatic Complex; Serbian Carpathians

Authors: Stojadinovic, U., Maleš, M., Randjelovic, N. & Radivojević, A.

Abstract
The Serbian Carpathians, a segment of the Carpatho–Balkanides orogen, preserve a tectonic record of Jurassic to Miocene evolution related to the opening and closure of the Ceahlău–Severin ocean. The Danube River Gorge provides an exceptional field transect through this orogenic system, exposing the main tectonic units, their lithostratigraphic architecture, and the superposed deformation phases that define the present‐day structure of the orogen. This contribution synthesizes field observations from ten key localities distributed along the Danube River Gorge between Golubac and Donji Milanovac. The transect directly documents the relationships among the Supragetic–Getic unit, the Ceahlău–Severin unit, and the Danubian unit, as well as their associated sedimentary successions, contractional structures, and post‐orogenic fault systems. The field profile includes deep‐water Jurassic–Lower Cretaceous sedimentary successions deposited along the passive continental margin of the Ceahlău–Severin ocean, tectonic contacts within the Dacia mega‐unit, east‐vergent folds and thrusts related to the emplacement of the Danubian nappes, and younger strike‐slip and extensional structures linked to Cenozoic strain partitioning. The transect demonstrates that the first‐order architecture of the Serbian Carpathians is primarily controlled by latest Cretaceous east‐vergent nappe emplacement, during which Dacia‐derived units were thrust over the Danubian domain. Earlier Jurassic–Early Cretaceous extension established the paleogeographic and structural template of the system, whereas late Early Cretaceous deformation records internal nappe stacking within the Dacia mega‐unit. Oligocene–Miocene strike‐slip and extensional de‐formation subsequently segmented the nappe stack without fundamentally modifying its overall geometry. The Danube River Gorge, therefore, provides a unique field‐based framework for understanding the tectonic evolution and orogenic architecture of the Serbian Carpathians. Keywords: Ceahlău–Severin ocean, Dacia mega‑unit, Danubian unit, deformational evolution, lithostratigraphy.

Authors: Djerić N., Jach R., Goričan Š., Reháková D., Uchman A., Gawlick H.-J., Schlögl J. & Stojadinović U.

Abstract
The Jurassic–Early Cretaceous successions of the Danubian Unit in the Carpatho-Balkanides, studied in three structurally superposed sections in the Danube River valley (Djerić et al. 2026), record the evolution of the southern passive margin of the Alpine Atlantic domain. Integrated sedimentological, biostratigraphic and chemostratigraphic constraints document an evolutionary progression from Early-to-early Middle Jurassic syn-rift extension and subsidence, through Bajocian–Oxfordian tectonic quiescence, to the Late Oxfordian–Kimmeridgian onset of a Štramberk-type carbonate platform. The Lower Jurassic–Bajocian interval records a continental to shallow-marine transgression linked to early rifting of the easternmost Alpine Atlantic domain. Continental break-up and syn-rift differential subsidence led to the establishment of a horst-and-graben system marked by condensed Rosso Ammonitico deposition on structural highs and accumulation of thick radiolaritic basinal successions. Bajocian–Oxfordian tectonic quiescence was followed by the Late Oxfordian–Kimmeridgian development of Štramberk-type carbonate platforms that prograded basinward until the early Late Tithonian. Calcareous turbidites reached proximal basinal settings during the Late Oxfordian, whereas distal areas remained carbonate-starved until the Tithonian, when episodic platform-derived mass-transport deposits were transported into the basin. During the Berriasian–Valanginian, Biancone-type hemipelagic limestones blanketed the entire region, reflecting the stabilization of outer-shelf to basinal conditions across the former horst-and-graben topography. Regional correlation with coeval successions in Romania (Southern Carpathians), Tisza, the Western Carpathians, the Southern and Eastern Alps, and the Apennines demonstrates the coherence of the Danubian Unit as part of the southern Alpine Atlantic passive margin, refining existing Mesozoic palaeogeographic interpretations of the Alpine–Carpathian realm.

Authors: Kostić, B., Randjelovic, N., Stojadinovic, U., Maleš, M., Grujovski-Stanisavljević, M. & Srećković-Batoćanin, D.

Abstract
This study presents a basin-scale tectono-magmatic model for the Late Cretaceous evolution of the Timok Magmatic Complex (TMC) basin in the Serbian Carpathians, a segment of the Apuseni–Banat–Timok–Srednogorie (ABTS) volcano-sedimentary belt in SE Europe. Integration of structural and kinematic analyses with zircon U–Pb geochronology of syn-tectonic intrusions indicates that the TMC basin formed as a strongly asymmetric basin under E–W to NE–SW extension driven by rollback of the Neotethys slab. Early basin development was controlled by border-fault-related subsidence and sedimentation. At ~88–87 Ma, deformation migrated into the basin interior and localized along a major intra-basin normal fault corridor in the eastern part of the basin, focusing syn-tectonic calc-alkaline magmatism and hydrothermal activity. Between ~88 and 81 Ma, deformation and magmatism propagated laterally along strike, tracking progressive growth of the fault system. After ~81 Ma, extensional deformation waned, while magmatism migrated westward and became increasingly decoupled from faulting. These results demonstrate that slab rollback exerted a first-order control on the spatiotemporal coupling between deformation, basin evolution, and magmatism in slab-top extensional systems. Keywords: Timok Magmatic Complex, Serbian Carpathians, fault kinematics, zircon U–Pb geochronology, tectono-magmatic evolution, Neotethys subduction.

Authors: Ćirić, N., Kostić, B., Srećković-Batoćanin, D., Randjelovic, N., Maleš, M., Maletić, M. & Stojadinovic, U.

Abstract
We present new constraints on post-collisional magmatism in the Internal Dinarides based on a study of the monzogranite intrusion exposed along the southwestern flank of the Kosmaj Mts. in central Serbia. The studied rocks are calc-alkaline granitoids composed predominantly of K-feldspar, plagioclase, quartz, biotite, and amphibole. Amphibole–plagioclase thermobarometry yields crystallization temperatures of 774–831 °C and pressures of ~1.6–2.6 kbar, indicating emplacement at shallow upper-crustal levels. Zircon U–Pb analyses define a concordant age of 24.92 ± 0.31 Ma, constraining emplacement to the latest Oligocene. Zircon Lu–Hf isotopic compositions (εHf(t) = −1.2 to +7.0) indicate a dominantly juvenile magma source with limited crustal contribution. The Kosmaj monzogranite is assigned to the Oligocene I-type granitoid suite, interpreted as the product of Neotethyan slab break-off beneath the Dinarides, which triggered asthenospheric upwelling, enhanced heat flux, and generation of mantle-derived melts variably modified by crustal assimilation.

Authors: Maleš, M., Stojadinovic, U., Randjelovic, N., Sokol, K., Xie, J-C. & Prelević, D.

Abstract
In this study, we present new zircon U-Pb geochronological and Lu-Hf isotope data from garnet-bearing micaschists and two-mica leucogranite exposed in the metamorphic core of the Juhor Mts., a part of the Northern Serbo-Macedonian Sub-unit (NSMU) in central Serbia. Zircon core analyses from both lithologies demonstrate total overlap in terms of geochronology and geochemistry, yielding dominant Middle Ordovician ages between ~460 and 480 Ma, and indicating widespread Ordovician thermo-magmatic activity within the NSMU. Subordinate inherited zircon populations record Neoproterozoic ages (~550-850 Ma), consistent with derivation from Cadomian peri-Gondwanan crustal domains. Zircon rims define several younger Silurian to Carboniferous age populations interpreted as reflecting prolonged tectonothermal evolution followed by Late Variscan thermal overprinting. Lu-Hf isotope compositions are characterized predominantly by mildly subchondritic εHf(t) values, indicating evolved crustal sources, whereas several inherited Neoproterozoic grains and subordinate Ordovician zircons preserve juvenile isotopic signatures suggestive of variable mantle contribution during Cadomian crust formation. The granitoid exhibits petrographic, geochronological, and isotopic characteristics consistent with peraluminous S-type magmatism derived largely from partial melting of metasedimentary crust. The obtained data indicate that the NSMU preserves fragments of a peri-Gondwanan basement affected by prolonged Early Paleozoic thermo-magmatic evolution broadly comparable to other Alpine basement domains. Despite strong Alpine deformation and exhumation documented in the Juhor area, no Alpine zircon growth or zircon recrystallization was detected in the analyzed samples.

Authors: Randjelovic, N., Toljić, M., Trivić, B., Maleš, M., Grujovski-Stanisavljević, M. & Stojadinovic, U.

Abstract
The Timok Magmatic Complex (TMC), part of the Late Cretaceous Apuseni–Banat–Timok–Srednogorie (ABTS) volcano-sedimentary belt in the Carpatho-Balkanides, represents a well-exposed case study of a basin that developed within the overriding plate above two adjacent subduction systems of opposite polarity, the NE-dipping Neotethys and the W-dipping Ceahlău–Severin. This study reconstructs the tectonic evolution of the TMC basin through field-based structural and kinematic analysis, with the aim of constraining the controlling mechanisms of deformation in a multi-slab setting. The results define three successive deformation phases. The oldest phase records Late Cretaceous extension and asymmetric basin formation, characterized by strong strain localization along upper-crustal normal faults. This phase was controlled by rollback of the Neotethyan slab, enabling efficient transfer of deformation into the upper crust and direct coupling between active faulting and calc-alkaline magmatism. At the scale of the ABTS belt, this coupling was not uniformly developed, but is most clearly expressed through the development of the TMC basin. The subsequent phase corresponds to the latest Cretaceous–earliest Paleogene basin inversion, expressed by a progressive transition from contractional to transpressional deformation. This stage was controlled by the closure of the Ceahlău–Severin Ocean and Carpathian collision, with shortening localized along inherited extensional basin structures. The youngest phase reflects Oligocene–Middle Miocene post-orogenic deformation. It is characterized by strain partitioning and strike-slip faulting related to oroclinal bending of the Carpatho-Balkanides, which controlled segmentation and sedimentary reorganization of the TMC basin and the broader ABTS belt.

Authors: Đorđević, B., Djerić, N., Maleš, M., Grujovski-Stanisavljević, M. & Stojadinovic, U.

Abstract
The Timok Magmatic Complex (TMC) represents a segment of the wider Apuseni–Banat–Timok–Srednogorie (ABTS) Late Cretaceous magmatic belt, formed in response to the roll-back of the Neotethys slab beneath the Carpatho-Balkanides orogen in SE Europe. The TMC basin comprises Upper Cretaceous volcano-sedimentary sequences structurally incorporated within the Getic nappe system of the Serbian Carpathians. The evolution of the TMC basin was governed by Albian–Cenomanian to Turonian–Campanian E–W- to NE–SW-oriented extension associated with syn-tectonic calc-alkaline magmatism (~88–76 Ma). The post-rift stage of the basin evolution is characterized by Campanian–Maastrichtian shallow-marine carbonate sedimentation and regressive molasse deposits. The shallow-marine sediments, generally known as the “Vrbovac Beds”, were investigated at two localities in the southern part of the TMC basin. The lower parts of the Vrbovac Beds consist of coarse-grained carbonate breccia containing fragments of andesitic volcanites, corresponding to the final magmatic episode in the TMC basin. The upper parts comprise a succession of clastites and carbonates with diverse associations of rudists, gastropods, corals, and macroforaminifera. Carbonates are predominantly calcarenites, calcrudites, and biomicrites, whereas the clastic sediments include fine- to coarse-grained sandstones, marlstones, and shales. At the Bačevica locality, fossiliferous horizons are poorly exposed and two levels are recognized. The first level consists of loosely cemented limestone blocks with a diverse shallow-marine assemblage dominated by large rudists (Pironaea), gastropods (Trochactaeon giganteus Sowerby), and solitary corals (Cunnolites). Due to the weak cementation, material from this horizon is partly reworked and incorporated into second fossiliferous horizon, which is characterized by a rudist-dominated assemblage with Vaccinites loftusi, Radiolites sp., Pseudopolyconites sp., and Laperousia sp. In contrast, the Dubrava locality succession is subhorizontal and thin-bedded and well-preserved rudist in growth position indicate an autochthonous position. The rudist assemblage is comparable to that at Bačevica, and dominated by Vaccinites loftusi, Radiolites angeoides, and Pseudopolyconites sp., but lacks Pironaea. Cunnolites and large Trochactaeon specimens. During the Campanian–Maastrichtian, rudists and associated shallow-marine fauna inhabited depositional environments along the margins of the active andesitic Timok volcanic complex. The infill of rudist shells consists of siliciclastic material (quartz and clay minerals), indicating terrigenous input and deposition in clastic influenced environment. The studied sections record a transition from relatively high-energy depositional conditions at Bačevica to more stable environmental settings at Dubrava. Rudist habitats stretched from protected and open-marine parts of platforms to shelf margins where they produced large amounts of bioclastic rudist sands as observed at Bačevica. By linking stratigraphic, sedimentological, and tectonic observations, this study provides new constraints on the late evolutionary stages of the Upper Cretaceous TMC basin. Keywords: biostratigraphy; sedimentology; paleoenvironments; Timok Magmatic Complex; Serbian Carpathians

Authors: Stojadinovic, U., Randjelovic, N., Kostić, B., Djerić, N., Maleš, M., Srećković-Batoćanin, D., Toljić, M., Trivić, B., Đorđević, B. & Grujovski-Stanisavljević, M.

Abstract
The TMCmod project, supported by the Science Fund of the Republic of Serbia (GRANT No. TFC1389-YF/PROJECT No. 7461), investigates the interplay between tectonics, magmatism, sedimentation, and ore-forming processes in the Timok Magmatic Complex (TMC) of the Serbian Carpathians. The TMC represents a segment of the Apuseni–Banat–Timok–Srednogorie (ABTS) volcano-sedimentary belt, formed during Late Cretaceous subduction-related geodynamic processes in SE Europe. Integration of detailed field-based structural and fault-kinematic analysis with zircon U–Pb geochronology of syn-tectonic intrusions indicates that the TMC represents a highly asymmetric extensional basin formed during Neotethyan slab rollback. Basin evolution was controlled by E–W to NE–SW extension, with the earliest Albian–Cenomanian stage characterized by border-fault-accommodated subsidence and syn-rift sedimentation. At ~88–87 Ma, deformation progressively migrated into the basin interior and localized along a major intra-basin normal-fault corridor in its eastern part. This structure focused syn-tectonic calc-alkaline magmatism, dyke emplacement, hydrothermal activity, and ore formation. Between ~88 and 81 Ma, deformation and magmatism propagated laterally along strike, reflecting progressive growth of the fault system during syn-rift basin evolution. The results demonstrate that the TMC constitutes a segment of the ABTS belt in which rollback-driven extension, calc-alkaline magmatism, and ore-forming hydrothermal processes became directly coupled through fault-controlled magmatic and hydrothermal activity. To further constrain the geodynamic significance of this tectono-magmatic coupling, Lu–Hf isotope analyses were performed on zircon populations previously dated by U–Pb geochronology. These analyses provide additional constraints on magma sources, mantle versus crustal contributions, and the temporal evolution of magma generation processes associated with rollback-related extension. The post-rift stage is characterized by Campanian–Maastrichtian shallow-marine carbonate sedimentation represented by rudist-bearing limestones and associated shallow-water fossil assemblages. Biostratigraphic, sedimentological, and microfacies analyses constrain the temporal transition from the late syn-rift stage of extension to the onset of basin inversion and provide insights into depositional environments during post-rift evolution. The subsequent evolutionary stage corresponds to the latest Cretaceous–earliest Paleogene basin inversion, expressed by a progressive transition from contractional to transpressional deformation associated with closure of the Ceahlău–Severin Ocean and the onset of Carpathian collision. During this stage, shortening became localized along inherited extensional basin structures, resulting in structural inversion of the TMC basin. The youngest deformational phase reflects Oligocene–Middle Miocene post-orogenic strain partitioning and strike-slip faulting related to oroclinal bending of the Carpatho-Balkanides, which controlled segmentation and sedimentary reorganization of both the TMC basin and the broader ABTS belt. The next phase of the TMCmod project will involve high-resolution numerical modelling of interactions among tectonic, magmatic, and ore-forming processes to test and refine the multidisciplinary result obtained within the project.

Authors: Stojadinovic, U., Randjelovic, N., Kostić, B., Maleš, M., Grujovski Stanislavljević, M. & Srećković Batoćanin, D.

Abstract
Slab-top basins represent key archives of the interaction between subduction dynamics, lithospheric extension, and magmatism. This study presents the first basin-scale tectono-magmatic model for the Late Cretaceous evolution of the Timok Magmatic Complex (TMC) basin, a segment of the Apuseni–Banat–Timok–Srednogorie (ABTS) magmatic belt in SE Europe. Integration of detailed structural and kinematic analyses with zircon U–Pb geochronology of syn-tectonic intrusions reveals that the TMC basin formed as a strongly asymmetric slab-top basin under E–W to NE–SW extension driven by retreat of the Neotethys slab. Early basin development was dominated by border-fault–controlled subsidence and sedimentation, followed at ~88–87 Ma by migration of deformation into the basin interior and localization along a major intra-basin normal fault corridor in the eastern part of the basin, which focused syn-tectonic calc-alkaline magmatism and hydrothermal activity. Between ~88 and 81 Ma, deformation and magmatism propagated laterally along strike, tracking progressive growth of the fault system, whereas after ~81 Ma extensional deformation waned and magmatism migrated westward and became increasingly decoupled from faulting. By ~76 Ma, the basin entered a post-rift stage marked by shallow-marine carbonate deposition and regressive molasse sedimentation. These results demonstrate that slab rollback exerts a first-order control on the spatiotemporal coupling between deformation, basin evolution, and magmatism in slab-top extensional systems. Keywords: Fault kinematics, Neotethys subduction, slab-top basin, Tectono-magmatic evolution, Timok Magmatic Complex, Zircon U–Pb geochronology.

Authors: Djerić, N., Jach, R., Goričan, Š., Reháková, D., Uchman, A., Gawlick, H-J., Schlögl, J. & Stojadinovic, U.

Abstract
Abstract: This study reconstructs the Jurassic–Early Cretaceous depositional evolution of the easternmost segment of the Alpine Atlantic based on three well-exposed successions of the Danubian Unit in the Serbian Carpathians. New biostratigraphic data derived from radiolarians, calpionellids, dinoflagellates, and ammonites, integrated with microfacies and carbon isotope analyses, document a transition from Early Jurassic syn-rift siliciclastic deposition to Middle–Late Jurassic hemipelagic sedimentation in a passive continental margin setting. The continental break-up and differential subsidence along the rifted margin resulted in a pronounced horst-and-graben segmentation. Condensed Rosso Ammonitico facies (Bajocian to lower Tithonian) on structural highs contrast with thick radiolarite-bearing basinal successions. Upper Jurassic carbonate gravity-flow deposits occur in both settings and up-section show a clear trend to more proximal facies that is related to Late Oxfordian to early Late Tithonian progradation of Štramberk-type carbonate platforms. During the Berriasian–Valanginian, Biancone-type hemipelagic limestones were distributed uniformly. Regional correlation with successions in Romania (Southern Carpathians), Tisza, the Western Carpathians, the Southern and Eastern Alps, and the Apennines demonstrates that the Danubian Unit represents a coherent segment of the southern passive margin of the Alpine Atlantic and contributes new constraints to ongoing debates on Mesozoic paleogeographic configurations in the Alpine–Carpathian realm. Keywords: Jurassic–Early Cretaceous, Biostratigraphy, Sedimentology, Geochemistry, Danubian Unit, Alpine Atlantic

Authors: Stojadinovic, U., Kostić, B., Krstekanić, N., Kitanović, V., Velojić, M. & Srećković Batoćanin, D.

Abstract
The Timok Magmatic Complex (TMC) represents part of the wider Late Cretaceous Apuseni-Banat-Timok-Srednogorie (ABTS) belt of calc-alkaline magmatics. The ABTS magmatic belt was formed due to the retreat and steepening of the NE-dipping Neotethys slab located beneath the Carpatho-Balkanides orogen of SE Europe [1]. The basin hosting the TMC, situated in the back-arc domain of the upper plate, was formed on the Getic Unit of the Serbian Carpathians, which belongs to the Dacia tectonic Mega-Unit with European continental affinity [2]. The opening of the TMC basin, associated with an extensional/transtensional regional tectonic regime, occurred since Cenomanian times. The subsequent Turonian to Santonian peak of the extension was characterized by the interplay between magmatic and sedimentary processes resulting in the emplacement of numerous (sub)volcanic bodies and mixed volcano-sedimentary deposits. In addition, the calc-alkaline system of the TMC basin was instrumental in generating world-class porphyry copper-gold deposits, which have been actively exploited in this region for more than a century [3]. However, high-resolution geochronology of (sub)volcanics in a large part of the basin is still missing. Within the scope of the TMCmod project, supported by the Science Fund of the Republic of Serbia (GRANT No TFC1389-YF/PROJECT No 7461), we conducted U-Pb zircon geochronological analyses at the key locations of this calc-alkaline magmatic system, which mainly consists of andesites and basaltic andesites. The new results yielded important inferences on the emplacement age and geochemical affinity of the several major (sub)volcanic bodies in the TMC basin. [1] Gallhofer, D., von Quadt, A., Peytcheva, I., Schmid, S.M. & Heinrich, C.A. (2015). Tectonic, magmatic, and metallogenic evolution of the Late Cretaceous arc in the Carpathian-Balkan orogen. Tectonics 34, 1813-1836. [2] Schmid S., Bernoulli D., Fügenschuh B., Matenco L., Schefer S., Schuster R., Tischler M. & Ustaszewski K. (2008). The Alpine-Carpathian-Dinaridic orogenic system: correlation and evolution of tectonic units. Swiss Journal of Geosciences 101, 139-183. [3] Jelenković, R., Milovanović, D., Koželj, D., Banješević, M. (2016). The mineral resources of the Bor Metallogenic zone: A review. Geologia Croatica 69 (1), 143-155.

Authors: Randjelovic, N., Maleš, M., Grujovski-Stanisavljević, M., Toljić, M., Trivić, B. & Stojadinovic, U.

Abstract
A field structural study was performed in the Late Cretaceous Timok Magmatic Complex (TMC) basin and the underlying Lower Getic unit to improve understanding of post‐Eocene tectonic evolution of the Serbian Carpathians. Our study demonstrates that Oligocene - Middle Miocene deformation is recorded in the TMC Basin, and it is characterized by strain partitioning between normal faults accommodating N-S to NW-SE extension and two distinct groups of strike-slip faults. In the central parts of the TMC basin, these structures controlled the opening of several Miocene intra-montane pull-apart basins. Southwards, the fault system change to a right lateral fault with a horse-tail geometry. Our observations indicate that Oligocene - Middle Miocene structures from the TMC and neighbouring units are an integral part of the previously defined Circum-Moesian Fault System that accommodated along-strike changes in the collisional mechanics of the Carpathians. Keywords: Indentation, Strain partitioning, Serbian Carpathians, TMC basin, Getic Unit

Authors: Djerić, N., Jach, R., Goričan, Š., Reháková, D., Uchman, A., Gawlick, H-J., Schlög, J. & Stojadinović, U.

Abstract
The Jurassic to Early Cretaceous depositional history of the Carpatho-Balkanides reflects the graben (Early Jurassic) to passive continental margin (Middle Jurassic to Late Cretaceous) evolution of the Alpine Atlantic. As there is still no consensus about the Jurassic–Cretaceous palaeogeographic position of the Carpatho-Balkanides on the northern edge of the Moesian unit (Europe or wider Adria) a detailed knowledge of the passive continental margin depositional history is crucial to solving such open questions. Whereas the Early Jurassic graben infilling (Gresten Facies in a wider sense) is palaeogeographically only diagnostic to decide if units derive from the western or eastern Alpine Atlantic, the Middle Jurassic to Upper Cretaceous sedimentary successions differ in their overall lithology, sedimentological evolution, microfacies and geochemical characteristics on both the northern and southern margins of this oceanic domain but have only been studied in an overall manner up to now. Modern biostratigraphic age dating, sedimentological or geochemical studies are missing. Jurassic–Lower Cretaceous deposits along the valley of the Danube River in Serbia have been studied. The new biostratigraphic and microfacies results from the Middle–Upper Jurassic sedimentary rocks of the three successions are complemented by the obtained geochemical data. Detailed biostratigraphic analyses of radiolarians, calpionellids, dinoflagellates, and ammonites shed light on the paleoenvironmental and paleogeographic changes of the open marine environments in the Serbian part of the Carpatho-Balkanides, during Middle Jurassic–Early Cretaceous times. These successions indicate a typical horst-and-graben topography, well known from other domains of the Alpine Atlantic, formed during the continental break-up around the Early/Middle Jurassic boundary. Sedimentary successions deposited in deeper basins or in a horst position can be distinguished. The topographic difference was apparently diminished by the Early Cretaceous, when Maiolica type limestone above radiolarites and above condensed Rosso-Ammonitico-type limestone became ubiquitous. This depositional history resembles sedimentary successions from the northern units of the Eastern Alps or Western Carpathians. The successions studied are also closely similar to those of the Southern Alps, but the underlying rocks are different. The pre-Toarcian deposits in the study area are quartz sandstones and conglomerates (Gresten facies), whereas the coeval deposits of the Southern Alps are platform to deeper-water carbonates.

Authors: Šarić, K., Prelević, D., Marjanović, M., Stojadinović, U. & Simić, V.

Abstract
The progress of a society is most closely related to the synergy of science and higher education, which must be continuously developed and complemented. Bearing in mind that educational systems change slowly, because they are molded into curricula and accreditation cycles, it is extremely important to find a way for new knowledge derived from cutting edge scientific endeavors to flow into education streams without any obstacle. One example of the synergy of education and science is the cooperation of the educational CEEPUS network CIII-RS-0038: "Earth-Science Studies in Central and South-Eastern Europe (EURO Geo-Sci)" with the scientific projects RECON TETHYS, DEMONITOR, TMCmod and REASONING, all implemented at the University of Belgrade - Faculty of Mining and Geology (UB-FMG). A diversity of geoscientific topics of the mentioned projects guarantees the efficient incorporation of a wide spectra of different geological disciplines into EURO GeoSci activities. Keywords: CIII-RS-0038, Recon Tethys, DEMONITOR, TMCmod, REASONING

Authors: Kostić, B., Srećković-Batoćanin, D., Stefanović, J., Krstekanić, N. & Stojadinović, U.

Abstract
The Timok magmatic complex (TMC) is Serbian segment of the Late Cretaceous Apuseni-Banat-Timok-Srednogorie magmatic belt, which was formed due to subduction of the Neotethys oceanic lithosphere beneath the Carpatho-Balkanides of south-eastern Europe. The back-arc basin hosting the TMC and associated sedimentary sequences was formed on the Getic tectonic unit of the Dacia mega-unit with European continental affinity. The interplay of sedimentary and magmatic processes in the TMC basin is still not fully understood. The aim of this study is to provide new insights into the coupled magmatism and sedimentation during the evolution of the TMC. Keywords: TMC basin, volcaniclastics, sedimentation

Authors: Stojadinovic, U., Pomella, H., Krstekanić, N., Kostić, B., Maleš, M., Randjelovic, N. & Radonjić, M.

Abstract
In this study, we combined low-t thermochronology with outcrop- to micro-scale kinematic and petrological observations in the metamorphic basement of the Juhor Mts. in Central Serbia. The Juhor Mts. comprise northern parts of the Europe-derived Serbo-Macedonian Unit, at the transition towards the Adria-derived tectonic units of the Internal Dinarides. The Late Paleozoic Variscan orogeny resulted in the medium-grade greenschist to amphibolite facies metamorphism in the core of the mountains, as inferred from our thin section-scale observations. During the subsequent Alpine orogeny, the tectonic setting of the entire Europe-Adria transitional area was strongly influenced by the geodynamic evolution of the intervening Neotethyan Vardar Ocean. The last recorded thermal overprint in the northern segments of the Serbo-Macedonian metamorphics occurred in the latest Jurassic due to their burial during the obduction of the Eastern Vardar ophiolites over the European continental margin. According to our thermochronological and field structural data, the exhumation of the Juhor Mts. metamorphic basement occurred during two separate phases of extensional deformations. During the Late Cretaceous extension, the Serbo-Macedonian metamorphics were exhumed for ~3 to 6 km along a ductile Morava shear zone, and later structurally juxtaposed against the low-grade metamorphics of the adjacent Supragetic Unit of the Serbian Carpathians. The latest phase of ~1 to 2,5 km tectonic exhumation and uplift in the Miocene took place along the brittle normal faults that accommodated the opening of the Morava Valley Corridor, which forms the southern prolongation of the Pannonian Basin. It is plausible, therefore, that these Miocene normal faults are reactivated segments of thrusts inherited from the preceding Paleogene phase of the Adria-Europe collision. Keywords: Northern Serbo-Macedonian Subunit, low-t thermochronology, kinematic analyses, extensional deformations.

Authors: Stojadinović, U., Toljić, M., Trivić, B., Pantović, R., Srećković-Batoćanin, D., Krstekanić, N., Kostić, B., Velojić, M., Stefanović, J., Ranđelović, N. & Maleš, M.

Abstract
Among the many examples observed worldwide, the Timok Magmatic Complex (TMC) basin of the Serbian Carpathians represents an excellent area for a process-oriented study on the interplay between tectonics, sedimentation, and magmatism in continental back-arc basins above evolving subducted slabs. The TMC is a segment of the larger Late Cretaceous Apuseni-Banat-Timok-Srednogorie (ABTS) magmatic belt, formed in response to the subduction of the Mesozoic Neotethys oceanic lithosphere beneath the Carpatho-Balkanides of south-eastern Europe. However, despite many qualitative studies, the quantitative link between the subducted slab's mechanics and the overlying basins' evolution is less understood. Within the scope of the newly funded TMCmod project, supported by the Science Fund of the Republic of Serbia (GRANT No TF C1389-YF/PROJECT No 7461), coupled field and laboratory kinematic and petrological investigations will be focused on creating a conceptual definition of the TMC geodynamic evolution, by combining near-surface observations with the known evolution of the subduction system. This definition will be subsequently validated through analogue modelling and integrated into a coherent geodynamic model of tectonic switching in basins driven by the evolution of subducted slabs. The new geodynamic model coupling the TMC basin with its Neotethys subduction driver will quantitatively advance the strategy of prospecting and exploration of world-class porphyry copper-gold deposits, which have been actively exploited in this region for more than a century. Furthermore, reconstructed regional kinematic evolution will improve seismic hazard assessment during industrial and societal infrastructure planning and construction.

Authors: Stojadinović, U., Toljić, M., Trivić, B., Pantović, R., Srećković-Batoćanin, D., Krstekanić, N., Kostić, B., Velojić, M., Stefanović, J., Ranđelović, N. & Maleš, M.

Abstract
Volcano-sedimentary basins located in the orogenic hinterland area overlying subducted slabs are observed worldwide to be driven by the switching tectonic regimes induced by the changing mechanics of the slab. Despite many qualitative studies, the quantitative link between the subducted slab’s mechanics and the overlying basins’ evolution is less understood. Among the many examples observed worldwide, the Timok Magmatic Complex (TMC) in Serbia represents an optimal natural laboratory due to the complex tectonic setting during the various stages of the Middle Jurassic-Paleogene evolution of the subduction system. The TMC is a segment of the larger Late Cretaceous Apuseni-Banat-Timok-Srednogorie (ABTS) magmatic belt, formed in response to the evolution of the subducted Mesozoic Neotethys oceanic slab beneath the Carpatho-Balkanides of south-eastern Europe. The TMC basin, with the associated intrusive and extrusive magmatics and volcano-sedimentary deposits, represents an excellent area for a process-oriented study on the interplay between tectonics, sedimentation, and magmatism in the basins above evolving subducted slabs. Within the scope of the newly funded TMCmod project, coupled field and laboratory kinematic and petrological investigations will be focused on creating a conceptual definition of the TMC geodynamic evolution, by combining near-surface observations with the known evolution of the subduction system. This definition will be subsequently validated through analogue modelling and integrated into a coherent geodynamic model of tectonic switching in basins driven by the evolution of subducted slabs. The new model of the TMC basin’s geodynamic evolution will quantitatively advance the strategy of prospecting and exploration of world-class porphyry copper- gold deposits, which have been actively exploited in this region for more than a century. Furthermore, reconstructed regional kinematic evolution will improve seismic hazard assessment during industrial and societal infrastructure planning and construction. Keywords: Timok Magmatic Complex, Neotethys subduction, basin geodynamics, analogue modelling