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Упит dcterms_subject_txt:Lower Cretaceous

174 items

  • Epidotized sanidine in quartzlatites from Grot

    Danica Srećković-Batoćanin, Suzana Erić, Nikola Novičić, Nikola Pašajlić, Natalija Batoćanin (2023)
    Propilitska alteracija je veoma česta u gornjokredno-tercijarnim vulkanitima Srbije. Kvarclatiti Grota, otkriveni na dubini od oko 550 m u jednoj od istražnih bušotina su holokristalaste porfirske strukture sa fenokristalima sanidina dimenzija i do 1,5 x 2 cm. Optičkim ispitivanjima su u kvarclatitu potvrdjeni i elementi sitaste, pojkilitske i glomeroporfirske strukture. Kao fenokristali prisutni su sanidin, plagioklas, kvarc, biotit i amfiboli. Sekundarni minerali su hlorit, epidot, coisit, Fe-hidroksidi, redak kalcit i ilit. U fenokristalima sanidina se zapažaju „lepeze“ izduženih kristala ...
    Grot, kvarc latiti, sanidin, epidot

  • Mesozoic carbonate rocks in Serbia used as dimension stone

    Vesna Matović, Tijana Vojnović Ćalić (2016)
    The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...
    Ukrasni kamen, Mezozoik, Krečnjak, Srbija, Petrografija, Fizičko-mehanička svojstva
    ... arca, belongs to the northern edge of Beljanica Mountain (Fig. 1). The Tisnica quarry is composed of layered and banked limestone of the Lower Cretaceous age corre- sponding to Urgonian facies. Flowing in a N-S direction, the river Tisnica splits the deposit in two (Fig. 1d). The exploitation ...
    ... dry state), whereas Cretaceous allo- chemical limestones are generally of moderately high compressive strength according to their arithmetic mean (Tisnica 144 N/mmz, Struganik 134 N/mmz, and Skrzut 135 N/mm?; Fig. 4c). The values of compressive strength were 10-17 % lower in the water saturated ...
    ... limestone ore body is elongated in a NW-SE direction, with variable thickness of 6.95-34.0 m (Lazarević 1994). The rock mass is built of Upper Cretaceous limestone, which belongs to the Cenomanian age (Dimitrijević 1996). Tectonically, the rock mass is fragmented into blocks by a system of faults ...

  • 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)
    ... north and east and a backarc-convexorocline situated in the south and west. The southern orocline of the Carpatho-Balkanides orogenformed during the Cretaceous closure of the Alpine Tethys Ocean and collision of the Dacia mega-unit with the Moesian Platform. Following the main orogen-building processes, ...
    ... degree 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 ...

  • Back-arc underplating provided crustal accretion affecting topography and sedimentation in the Adria microplate

    Paolo Mancinelli, Vittorio Scisciani, Cristina Pauselli, Gérard M. Stampfli, Fabio Speranza, Ivana Vasiljević (2021)
    Supported by evidence of deep crustal sources for the observed magnetic anomalies in Central Italy and by outcropping gabbros in the Croatian archipelago, we model the observed gravity and magnetic anomalies in the Central Adriatic Sea and surroundings. We suggest that the major magnetic anomalies in the area are related to a wide underplating and propose that this volume represents the first stage of the back-arc Adria continental breakup in Early Permian times. During the Palaeotethys-Adria collision, underplating has ...
    Underplating, akrecija kore, Magnetske anomalije, Jadranska ploča

  • Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance

    Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović (2017)
    Neo-Tethys, trench-like basins, synorogenic deposition, evolving thrust belt, Triassic palaeogeography
    ... 199—280. Krische O., Goričan Š. & Gawlick H.-J. 2014: Erosion of a Jurassic ophiolitic nappc-stack as indicated by exotic components in the Lower Cretaceous Rossfeld Formation of the central Northern Calcareous Alps (Austria). Geol. Carpath. 65, |, 3—24. Lein R. 1987: Evolution of the Northern ...
    ... nappes including their under- lying: mćlange were emplaced in the area of the Dinaridic Ophiolite Belt around the Jurassic/Cretaceous-boundary or the Early Cretaceous (Djerić et al. 2007; Schmid et al. 2008). However, Gawlick et al. (2009b, 2016b) proved that the onset of obduction onto the ...
    ... (Upper Ladinian to Lower Carnian); partly with preserved Late Carnian drowning sequence Bulog Limestone Formation (Middle-Upper Anisian) Ravni Formation (Middle Anisian) Bioturbate Formation (Late Lower Triassic to early Middle Triassic) Sirogojno Formation (?Lower Triassic) Fig. 2. ...

  • Sedimentologija gornje krede centralnog dela vardarske zone

    Violeta M. Gajić (2014-09-04)
    Područje istraţivanja obuhvaćeno doktorskom disertacijom nalazi se ucentralnim delovima Vardarske zone. Karakteriše se sloţenom geološkomgrađom koju grade mezozojske tvorevine trijaske, jurske i kredne starosti, kao ikvartarni sedimenti. U trijasu je istraţivano područje pokrivalo more, sve dogranice sa Šumadijom. Tokom jure sloţenim geotektonskim procesima stvarajuse ofiolitske stene rasprostranjene u juţnim i delom u centralnim delovimaistraţivanog područja. U donjoj kredi se pokretima dinarske faze izdiglo kopno,koje je egzistiralo skoro u celoj donjoj kredi područja istraţivanja.U alb-cenomanu pojedini delovi istraţivanog područja se ...
    Vardarska zona, gornja kreda, transgresija, litostratigrafskejedinice, sedimentologija, turbiditi
    ... in the southern and partly in the central parts of the study area. In the Lower Cretaceous, tectonic movements of Dinar phase uplift the mainland, and these conditions existed almost throughout the whole Lower Cretaceous. In the Alb-Cenomanian, some parts of the study area were lowered and they ...
    ... vardarske zone;Sedimentology upper cretaceous central part of Vardar zone Violeta M. Gajić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Sedimentologija gornje krede centralnog dela vardarske zone;Sedimentology upper cretaceous central part of Vardar zone | Violeta ...
    ... Sedimentology Upper Cretaceous central part of Vardar Zone ABSTRACT The research area covered by doctoral thesis is situated in the central part of the Vardar zone. It is characterized by a complex geological structure built by Mesozoic (Triassic, Jurassic and Cretaceous) and Quaternary sediments ...

  • Tektonske i litostratigrafske karakteristike šireg područja Grivske (Zapadna Srbija)

    Nikola Otašević (2024)
    U ovom radu predstavljene su osnovne geološke karakteristike šireg područja Grivske. U litostratigrafskom pogledu na ovom prostoru prisutne su paleozojske, mezozojske i kenozojske sedimentne, magmatske i metamorfne stene. Tvorevine karbona su predstavljene semimeta-morfisanim tvorevinama.Tvorevine trijaske starosti su predstavljene slojevitim i masivnim krečnjacima, dok su tvorevine jure predstavljeni produktima ofiolitskog melanža. Takođe, prisutne su i tvorevine senona koje su predstavljene masivnim krečnjacima. U neogenoj sukcesiji dominiraju klastiti miocena, dok su u kvartaru zastupljeni različiti tipovi fluvijalnih, deluvijalnih i deluvijalno-proluvijalnih tvorevina. ...
    Arilje, grivska formacija, Drina-Ivanjica, tektonska evolucija

  • Middle Jurassic terebratulide brachiopods from the Jordan Valley (northwestern Jordan)

    Howard R. Feldman, Barbara V. Radulović, Vladan J. Radulović, Fayez Ahmadc (2021)
    U radu je izvršena revizija i detaljan opis srednjojurskih brahiopoda Jordanske doline, a takodje su izdvojeni i novi taksoni. Sa profila Arda iz gornjeg bata (Hamam formacija) i donjeg keloveja (Muganija formacija) odredjeni su novi rod i vrsta Jordanithyris ardainensis. Iz gornjeg bata Hamam formacije (krečnjaci, dolomiti, peščari i laporci) izdvojena je vrsta Ptyctothyris quillyensis. Zajednica koju čine Arabatia bihinensis, Ectyphoria sinaiensis, Ptyctothyris quillyensis, Dorsoplicathyris dorsoplicata i Tubithyris jurayfahiensis potiče iz donjokelovejskih krečnjaka sa proslojcima laporaca Muganija formacije. Brahiopodi ...
    Brachiopoda, Terebratulida, severozapadni Jordan, srednja jura, gornji bat, donji kelovej

  • XRD dertermination od hydrothermal phases related to epithermal mineralization in the Čukaru Peki deposit

    Dragana Bosić, Vladica Cvetković, Miodrag Banješević, Kristina Šarić (2024)
    Čukaru Peki, epithermal mineralization, hydrothermal alterations

  • 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
    ... A, B). This suggests that lower vertical stress levels above the ramp facilitate the onset of deformation at this location (structure 1 in Fig. 3a). However, a new strike-slip fault zone forms Fig. 3. Model 1 - reference model. Dashed black lines mark the upper and lower edges of the indenter. R – ...
    ... connecting the Carpathians and Balkanides orogenic system (Fig. 1a and b) shows a thick-skinned nappe-stack that was formed during two phases of Cretaceous shortening related to the closure of the Ceahlău-Severin branch of the Alpine Tethys Ocean and the subsequent collision between the Dacia mega-unit ...
    ... by gradual clockwise rotation and N- to E-ward translation of the Dacia mega-unit during its movement into the Carpathians embayment. The post-Cretaceous rotation was significant (up to 90◦) in the South Car- pathians when compared to no significant rotation in the Balkanides (e. g., Balla, 1987; ...

  • Callovian (Middle Jurassic) Sphriganaria (Brachiopoda) from the Jordan Valley (Middle East)

    Howard R. Feldman, Barbara V. Radulović, Fayez Ahmad (2023)
    Brachiopods, Middle Jurassic, Sphriganaria, shell microstructure, Ethiopian Province

  • Facies analyses, biostratigraphy and radiometric dating of the Lower-Middle Miocene succession near Zajecar (Dacian basin, eastern Serbia)

    Ljupko Rundić, Nebojsa Vasić, Miodrag Banješević, Dejan Prelević, Violeta Gajić, Bojan Kostić, Jelena Stefanović (2020)
    Седиментна сукцесија између доњег и средњег миоцена и складан тј. дискордантан однос између језерско-континенталних наслага (нпр. DLS, SLS) и баденских морских седимената представља једну од занимљивих тема. У овом раду смо проучавали пет истражних бушотина (источна Србија) и анализирали главни фацијални образац, биостратиграфске карактеристике миоценске сукцесије и применили U-Pb радиометријско датирање вулканских туфова интерстратификованих у седиментној серији са слојевима угља (бушотина NRKR-17002). Добиjeна је конкордија старост од 16,9 ± 0,2 милиона година за сва анализирана зрнца циркона без наследних ...
    Доњи–средњи миоцен, језерске фације, морска трансгресија, U-Pb геохронологија, источна Србија.

  • Atmospheric exposure vs burying: influences on damage intensity of built-in kersantite in the monument of the Small Staircase (Belgrade, Serbia)

    Nevenka Novaković, Predrag Dabić, Vesna Matović (2023)
    Proučavan je efekat „zatrpanog kamena“ na intenzitet procesa degradacije prisutnih na kersantitu koji je ugrađen u spomenik Malo stepenište. Istraživanja su vršena na uzorcima stene iz kamenoloma i na oštećenim kamenim blokovima ugrađenim u spomenik. Dok su neki delovi stepeništa bili pod zemljom 90 godina, većina kamenih elemenata je bila izložena različitim uslovima sredine i antropogenim uticajima. Urađeno je detaljno mapiranje trenutnog stanja spomenika kako bi se istražio uticaj “zatrpavanja” i kompleksne geometrije spomenika na tip propadanja i variranje ...
    Raspadanje, Indeks oštećenja, Zatrpavanje, Fizička svojstva, Kersantit

  • 3D modeling and monitoring of karst system as a base for its evaluation and utilization: a case study from eastern Serbia

    Saša Milanović, Zoran Stevanović, Ljiljana Vasić, Vesna Ristić-Vakanjac (2013)
    Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Geotechnical zoning of the terrain along the first section of E-80 highway in Serbia – SEETO route 7

    Dragoslav Rakić, Zoran Berisavljević, Irena Basarić, Snežana Bogdanović, Jovana Janković (2019)
    Part of E-80 highway that passes through Serbia (from the city of Nis to the administrative border Merdare) is 77 km long. The highway is divided into two sections: the first from Nis to Plocnik (39.4 km long) and the second from Plocnik to the administrative border with Kosovo. The route is designed through a typical plain and hilly terrain in which different geological units are dominant: crystalline schists, neogene sediments of foothills and quaternary sediments in the valley ...
    ... hilly terrains (dl-pr, dl, Pl, M-Pl, M) Cretaceous flysch complex (pr, K) Neogene hilly terrains (Pl, M-Pl, M) are usually covered with Quaternary sediments (dl- pr, el-dl, pr). They are located along the periphery of the upper and lower Toplica valley. They are intersected with stream ...
    ... cross-section of alluvial plain terrain (km: 23.5-39.4) The younger Neogene complex corresponds to the upper Miocene and lower Pliocene. Two horizons are determined: lower - in which fine grained sediments dominate (clays, silt with fine grained sands, coal clays etc.) and upper - built mainly ...
    ... 4) The second subsection is built of Miocene creation, while at the very end of the highway base is built of flysch sediment complex of Cretaceous age (K3 2- marlstone, marl, sandstone with alevrolite layers, claystone and limestone). Proluvial (pr) or alluvial (al) sediments of the Toplica ...

  • Sastav i teksture minerala FeO-Fe2O3-TiO2 sistema u vulkanskim stenama i porfirskim ležištima bakra Borske metalogenetske zone

    Aleksandar Luković (2021)
    Proces obrazovanja minerala iz sistema FeO-Fe2O3-TiO2 u uzorcima vulkanskih stena i porfirskih orudnjenja borske zone prikazan kroz pojavu magnetita/hematita i njihovih alteracija. Minerali ove zone su ispitivani optičkim metodama (odbijena i propuštena svetlost), SEM-EDS/BSD, XRPD, LA-ICP-MS metodama. Rezultati ispitivanja su, pored glavnih Fe – Ti oksida, otkrili prisustvo ferijskog ilmenita u hornblenda andezitima I vulkanske faze kao i magnetita sa većim koncetracija Cr u zoni zlotske magnetne anomalije. Ispitivanje uzoraka iz bušotina porfirskih sistema borske zone otkriva postojanje nekoliko ...
    magnetit, hematit, hemoilmenit, Borska metalogenetska zona, porfirska ležišta
    ... Timočkog magmatskog kompleksa. Doktorska disertacija, Rudarsko-geološki fakultet, Univerzitet u Beogradu, 184 pp. Banješević, M., (2010): Upper Cretaceous magmatic suites of the Timok Magmatic Complex. Annales Geologiques de la Peninsule Bankanique, 71, 13-22. Banješević, M., Cvetković, V. von Quadt ...
    ... Auflichtmikroskopie. Deutscher Verlag fur Grundstoffindustrie, Leipzig (408pp). Berza T., Constantinescu E., Serban-Nicolae V., (1998): Upper Cretaceous Magmatic Series and Associated Mineralisation in the Carpathian-Balkan Orogen. Resource Geology, 48, 4, 291-306. Bilibajkić, D., Veljović, D. ...
    ... geomagnetna anomalija. Nafta-gas- Geofizički institut, Vesnik, Knjiga XXVI/XXVII, ser.C: 13-30. Bojar, A. V., Neubauer, F., Fritz, H., (1998): Cretaceous to Cenozoic thermal evolution of the southwestern South Carpathians: evidence from fission-track thermochronology. Tectonophysics, 297, 229-249 ...

  • The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)

    Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov (2019)
    Geography, Planning and Development,Aquatic Science,Biochemistry,Water Science and Technology
    ... Triassic, Jurassic and Cretaceous ages. The Triassic deposits are represented by limestones, dolomites, conglomerates and sandstones, whilst the Jurassic deposits are represented by sandstones, clays, conglomerates and marble limestones. The most frequent deposits of the Cretaceous age are limestones, marls ...
    ... (detected at sampling point 4 + 230 m in the tunnel, EC: 5000–10,200 µS/cm) and the water transported by the tunnel, whose mineral content was much lower (Table 3). When the tunnel was in full operating mode and the pressure of the transported water seeping into the hydrogeologic environment was constant ...
    ... environment and “pushing” the higher-TDS water towards the surface. Stabilization through diffusion re-established the usual pattern, with water of lower density closer to the surface (Table 3). Table 3. Change in EC as a function of depth at PP-3 in the various phases. Phase A B C A Depth (m) EC (µS/cm) ...

  • Tektono-termalna evolucija kontakta Dinarida i Karpato-Balkanida u području Jastrepca

    Dalibor Erak (2019)
    Predmet istraživanja doktorske disertacije je tektonska evolucija područja planine Jastrebac u centralnoj Srbiji, gde višefazna tektonska aktivnost od mezozoika do danas komplikuje rekonstrukciju strukturnih odnosa i geološke evolucije ovog prostora. Kompleksna višefazna evolucija planine Jastrebac u Srbiji je demonstrirana kombinovanjem kinematskih podataka prikupljenih na terenu i mikrostrukturnih opservacija sa dodatnim termohronološkim podacima “fission track” i podacima odredbe starosti metodom U-Pb na cirkonima. Gornjokredna ekshumacija bila je praćena gornjokredno-eocenskim navlačenjem i magmatizmom vezanim za kontinentalnu koliziju, pri čemu je akreciona ...
    kinematika, termohronologija, ekstenzioni detačmenti, Dinaridi, Karpato-Balkanidi
    ... Tektono-termalna evolucija kontakta Dinarida i Karpato-balkanida u području Jastrepca 143 Dimitrijević, M.N., Dimitrijević, M.D., 2009. The Lower Cretaceous paraflysch of the Vardar zone: composition and fabric. Geoloski anali Balkanskoga poluostrva (70), 9–21. Doglioni, C., Carminati, E., Cuffaro ...
    ... and micro-structural observations assisted with fission track thermochronological analysis and U-Pb zircon dating. A Late Cretaceous exhumation was followed by latest Cretaceous – Eocene thrusting and magmatism related to a continental collision that sutured the accretionary wedge containing contractional ...
    ... Quadt, A., 2013. An anorogenic pulse in a typical orogenic setting: The geochemical and geochronological record in the East Serbian latest Cretaceous to Palaeocene alkaline rocks. Lithos 180–181, 181-199. Dercourt, J., Gaetani, M., Vrielynck, B., Barrier, E., BijuDural, B., Brunet, M. F., Cadet ...

  • A contribution to the knowledge of facial diversity of Badenian sediments in the Belgrade area

    Filip Anđelković, Dejan Radivojević (2018)
    baden, Beograd, facije, facijalna raznovrsnost, sedimenti
    ... e Central Paratethys Sea. The underlying bedrock is  composed of Mesozoic  sediments, ophiolites  and ophiolitic mélange, Cretaceous  to Paleogene  flysch  sediments  and  Lower Miocene  continental  sediments.  The  diversified  basin  basement  and  tectonic  processes during the Badenian led to t ...
    ... sedimentary  cycles:  lower and upper. According  to  their understanding of  the problem,  the  facies of Tašmajdan limestones and Rakovica sands, which are in the focus of this paper, belong to the  upper cycle, and the facies of Višnjica clays and Konjarnik schlier belong to the lower cycle.   Based  ...

  • Novi pristup proučavanju tekstura minerala značajnih za istraživanje rudnih ležišta

    Aleksandar Pačevski (2022)
    ... system Violeta Gajić, Sedimentologija gornje krede jednog dela Unutrašnjih Dinarida (zapadna Srbija) Violeta Gajić, Sedimentology of the Upper Cretaceous within a part of the Internal Dinarides (West Serbia) Dragana Đurić, Primena SAR intereferometrije za određivanje koseizmičkih deformacija: trendovi ...