Претрага
692 items
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Novi model za postizanje optimalne proizvodnje na naftnom polju Amal
Elnori Elmabrouk Ali Elhaddad (2015-04-16)Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...... međuprostora padne ispod 30°C, da bi dalji pad temperature intenzivirao taloženje. Slika 6.1. Procenat taloženja parafina u zavisnosti od temperature u međuprostoru pre utiskivanja hemijskih inhibitora Rezultati dobijeni eksperimentalno su ilustrativno dati na slici 6.2 i u tabeli 6.2. ...
... 23100 m3/dan se preko kumulativne krive i gradijent krivih, raspoređuje za svaku bušotinu u količini od 8100 m3/dan (X1), 6000 m3/dan (X2), 4500 m3/dan (X3) i 4500 m3/dan (X4). 0 0,005 0,01 0,015 0,02 0,025 0,03 0 5000 10000 15000 20000 25000 Količina utisnutog gasa, m3 /dan G ra d ...
... prikazano na sliki 5.17, ograničena količina gasa za utiskivanje od 2320 m3/dan 46 se preko kumulativne krive i gradijent krivih raspoređuje za svaku bušotinu u količini od 510 m3/dan (B1), 720 m3/dan (B2) i 1090 m3/dan (B3). Slika 5.17. Gradijent krive i kumulativna kriva 5.1.4. REŠAVANJE ...Elnori Elmabrouk Ali Elhaddad. "Novi model za postizanje optimalne proizvodnje na naftnom polju Amal" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-04-16)
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Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains
carbon and oxygen isotopes, radiolarians, calcareous dinoflagellates, radiolarites, Krížna Nappe, West ern Carpathians, Tethys... Fm g grainstone data Fig.3. Dluga Valley section in the Western Tatra Mountains. Lithology, biostratigraphy (including position of the radiolarian and cal- careous dinoflagellate samples) and results for carbon and oxygen isotope measurements, CaCOy content and microfacies analysis. Age denotes c ...
... ef a/l., 2013). METHODS The sections (Table 1; Figs 3-8) were analysed at high resolution, including microfacies analysis, carbonate con- tent, biostratigraphy, and analysis of carbon and oxygen iso- topes. Microfacies as well as the cysts of calcareous dinofla- gellates were studied in 240 ...
... ing to the lack of biostratigraphic data (Fig. 3). The lime- stones in question occur above the Toarcian—?Aalenian red nodular limestones (Myczynski and Lefeld, 2003; My- czyhski and Jach, 2009) and below the Upper Bathonian spotted radiolarites (data in this paper; sec also Polak ef a/., ...Renata Jach, Nevenka Đerić, Špela Goričan, Daniela Reháková. "Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains" in Annales Societatis Geologorum Poloniae (2014)
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WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina
Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)... exists, the provincial and republican cadastral numbers (list numbers) are recorded. 3.4 Reporting and data analysis Within the reporting system it is possible to obtain a report of all data on an abandoned mine: register, titleholder, objects, coordinates, properties, evaluation, as well as ...
... to work with data. Administrators have the possibility to manage all the data, while editors have the option of editing data related to pits and commercial organizations, but not data related to user accounts and data dictionary. 3.3 Web application for textual (attribute) data Authorized ...
... spatial data needed for different aspects of the study of the terrain of abandoned mines and/or their remediation. These data include: basic data, hydrogeology, biology, geology and mining as well as specific information related to the terrain of abandoned mines [7]. Spatial data in the a ...Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis. "WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina" in Proceedings of the 5th International Symposium Mining And Environmental Protection,June 10-13,2015, Vrdnik, Serbia, Belgrade : Faculty of Mining and Geology (2015)
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Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine
... 4708 +0.0635 +0.0695 13 15.2808 1.2227 1.0784 1.2227 +0.1443 0 14 16.5314 0.5276 0.9762 1.0882 -0.4486 -0.5606 Based on the data in Table 3, a statistical analysis was carried out and the following values were obtained: For model 1: The curveline dependency index 1 between the reduced distance ...
... Thus, to determine the parameter n, all experimental data were taken into account. 3. DEFINING OF STATISTICAL CRITERIA To evaluate the degree (Ivanović, 1973) of correlation between recorded (measured) and calculated data in this paper we have used the coefficient of linear 14 ...
... convenience measure of the obtained functional relationship for the given experimental data, the criterion "3S" was also used (Vukadinović, 1970). This criterion uses squares of differences between the obtained experimenal data and the calculated ones for oscillation velocities of v. If those diffrences are ...Suzana Lutovac, Sanja Bajić, Marina Ravilić, Radmila Gaćina. "Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine" in Underground Mining Engineering, Belgrade : University of Belgrade, Faculty of Mining and Geology (2015). https://doi.org/10.5937/podrad1526009L
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Legal framework for recultivation of degraded areas caused by mining exploitation
Radmila Gaćina (2023)Prilikom površinske i podzemne eksploatacije uglja eksploatacioni sistemi oštećuju veće ili manje površine zemljišta. Iskustva pokazuju da su oštećenja zemljišta znatno veća kod površinske eksploatacije, gde je prostora degradiran ne samo u konturi rudnika i okoline, već se promene takođe dešavaju u prirodnom okruženju. U članku su predstavljeni rezultati studije zakonskih okvira rekultivacije u nekim zemljama sveta i u Srbiji. Praktično iskustvo rekultivacije pokazalo je da iskorišćenje i devastacija tokom rudarske aktivnosti predstavljaju opasnost ne samo za pogođena ...... – to meet the present and future needs of the local population and the region”. 30 Gaćina R. Considering the concept of recultivation, the analysis of researchers" views on the concept of “recultivation” shows that it is increasingly being replaced by the terms “revitalization”, “renaturation” ...
... 3390/resources9060073 GUO, ., ZHENGI H., YUSHENG L. (2022). "Causes and Countermeasures for the Failure of Mining Land Use Policy Reform: Practice Analysis from China" Land 11, no. 9: 1391. https://doi.org/10.3390/land11091391 SKOUSEN J, ZIPPER C (2014) Post-mining policies and practices in the Eastern ...
... REVITALISATION Although the term reclamation appeared at the beginning of the 20th century, the first attempts to rehabilitate degraded land date back to the end of the 19th century, note in Germany. The term "damaged land" means all those surfaces that have been affected directly or indirectly ...Radmila Gaćina. "Legal framework for recultivation of degraded areas caused by mining exploitation" in Underground mining engineering, Belgrade : University of Belgrade - Faculty of Mining and Geology (2023). https://doi.org/10.5937/podrad2342027G
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Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)
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. ...... with deposition of clastic bodies. These clastics were probably generated during the early Pannonian. 4.2. The subsurface data As an exception to the collected surface data from the aforemen- tioned outcrops and sections, an additional two shallow boreholes (BT1-2 and BT1-3) have been analyzed (see ...
... quality information i.e. a small number of measured structural elements (no systematic measurements of the direc- tion of inclination of layers, stress analysis, etc.) as well as the morphological diversity of the area were the main reasons for geomorphologic consideration in order to try to identify the ...
... addition, these observations are connected with an estimation of the structural elements based on a DEM terrain model and general (not sys- tematic) analysis of linear relief structures. In other words, this approach was forced due to circumstances but, in our mind, useful. The wider study area occupies ...Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević, Miloš Radonjić. "Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)" in Geologia Croatica (2019). https://doi.org/10.4154/gc.2019.11
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Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material
Borislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić (2022)Pyrophyllite, with the chemical formula Al2Si4O10(OH)2, is a naturally occurring and abundant van der Waals mineral belonging to the group of phyllosilicates. It is very soft, layered crystal used for sculpting and an excellent electrical and thermal insulator aimed for the operation at high pressure and temperature. Here, for the first time, two-dimensional (2D) pyrophyllite obtained by both mechanical and liquid phase exfoliation is presented and investigated at the nanoscale. The layered structure provides low friction coefficient of around ...Atomic force microscopy, Insulating properties, Nanofriction and wear, Natural two dimensional materials, Phyllosilicates, PyrophylliteBorislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić. "Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material" in Applied Surface Science, Elsevier BV (2022). https://doi.org/10.1016/j.apsusc.2022.155114
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Energetska bezbednost sektora prirodnog gasa Srbije
U prve dve decenije 21. veka obezbeđivanje sigurnosti snabdevanja prirodnim gasom domaćeg tržišta bio je jedan od prioriteta razvoja energetike Srbije. Istovremeno, aspekt sigurnog snabdevanja bio je neizostavni deo slagalice stvaranja energetske bezbednosti. Izražena uvozna zavisnost je dominantna karakteristika sektora prirodnog gasa, tačnije, Republika Srbija je snažno zavisna od ruskog gasa, sa više od 80% uvezenih količina gasa, a do pre dve godine snabdevala se isključivo kroz jednu interkonekciju. U radu se razmatra aktuelna situacija u sektoru prirodnog ...... security of natural gas supply to Serbia, as well as its vulnerability to interruptions in international supply chains. Through the paper, an analysis of the energy security of the natural gas sector assessed by the N-1 index, IDUPS and the parameter of infrastructure development of the sector ...Aleksandar Madžarević, Predrag Jovančić, Miroslav Crnogorac. "Energetska bezbednost sektora prirodnog gasa Srbije" in 36. Međunarodni kongres o procesnoj industriji – Procesing ’23, Šabac, 1. i 2. juna 2023. , Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) Društvo za procesnu tehniku (2023)
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Neogena i kvartarna herpetofauna (Anura i Squamata) Srbije : doktorska disertacija
Dragana D. Đurić (2019)U radu je prvi put opisan deo herpetofaune (Anura i Squamata) iz neogenih i kvartarnih lokaliteta Srbije. Obrađeni su lokaliteti Sibnica, Prebreza, Lazarevc, Vračević i Riđake, neogene starosti. Lokaliteti kvartarne starosti su pećine Mala i Velika Balanica, Pešturina, Hadži Prodanova, Baranica, Vrelska pećina i sedimentne ispune fisura u kamenolomima Venčac i Beočin. U radu je prikazana je taksonomska analiza herpetoloških ostataka. Pored taksonomske analize fosilnog materijala dat je kratak geografsko-geološki opis proučavanih lokaliteta, osnovne osteološke karakteristike anura i skvamata ...... Fleischmann, 1831; Malpolon cf. M. monspessulanus (Hermann, 1804). The comparative tafonomic, stratigraphic, paleoecological analysis, as well as comparison of literature data and the recently published studies, give confirmation of temporal variation in distribution of taxa in herpetofauna with inicated ...
... prikupljenog materijala, te da će kompletan sastav herpetofaune svakako biti promenjen. Mora se dodati i da materijal prikupljen iz fisura na Venčacu pokazuje značajnu raznovrsnost i velika je verovatnoća da je akumuliran u dužem vremenskom rasponu (lično zapažanje). Što bi značilo da je ova asocijacija moguće ...
... Prirodnjačkog muzeja (Milivojević 2016). Prvobitno je smatrano da novootkriveni profili nisu iste starosti kao oni koje je proučavao Petronijević, već da 12 leže ispod tada opisanih slojeva (Marković 2008a). Revizijom je utvrđeno da su i novotkriveni profili sinhronični sa onima iz prvih iskopavanja ...Dragana D. Đurić. Neogena i kvartarna herpetofauna (Anura i Squamata) Srbije : doktorska disertacija, Beograd : Rudarsko-geološki fakultet, 2019
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Coal homogenization stockyard sizing “Tamnava – Zapad” case study
... coal in (only) 16 layers. However, the diagram was plotted based on results obtained by analysis of a certain number of samples from the entire deposit. Not considering the representativeness of the simulated data there is always suspicion that variations in certain parts of the deposit are much greater ...
... methods. (Pavloudakis & Agioutantis, 2001) For "Tamnava Zapodno-Polje" a simulation was run on a small test site using data from the technological block model, as well as simulated data based on statistical parameters: average value and standard deviation. It should be pointed out that increasing the ...
... stacker has a minimum travel speed (around 2-4 m/minute), which then restricts the minimum number of layers. This consideration should include an analysis of the stacker's operating capacity. This capacity depends on the operating capacity of the pit, which is quite variable in short intervals (second ...Božo Kolonja, Dinko Knežević, Ranka Stanković, Dejan Stevanović, Detlef Trummer. "Coal homogenization stockyard sizing “Tamnava – Zapad” case study" in Proceedings of 13th International Symposium Continuous Surface Mining, ISCSM 2016, / (2016)
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Izbor rotornih bagera za proces revitalizacije: primer rotornih bagera SRs 1200 u rudarskom basenu Kolubara
Predrag Jovančić, Dragan Ignjatović, Stevan Đenadić, Filip Miletić, Goran Todorović, Dragan Novaković (2020)Revitalizacija je proces ili skup tehničkih zahvata na mašini kojim se vrši zamena svih dotrajalih ili oštećenih delova metalne konstrukcije. Sastavni deo procesa revitalizacije je i modernizacija zastarele elektro-mašinske opreme. Principi revitalizacije sasvim sigurno nisu sadržani u okviru redovnog godišnjeg ili dnevnog održavanja. Oni predstavljaju održavanje onih veličina koje su značajne za mašinu kao celinu (u ovom slučaju rotorni bager). U ovom radu su analizirani rotorni bageri oznake SRs 1200. Na površinskim kopovima rudarskog basena Kolubara takvih bagera ima ...Predrag Jovančić, Dragan Ignjatović, Stevan Đenadić, Filip Miletić, Goran Todorović, Dragan Novaković. "Izbor rotornih bagera za proces revitalizacije: primer rotornih bagera SRs 1200 u rudarskom basenu Kolubara" in XIV Međunarodna konferencija OMC 2020, Zlatibor, Srbija, 14-17. oktobar 2020., Jugoslovenski komitet za površinsku eksploataciju (2020)
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Аnaliza mogućnosti povećanja nagiba završne kosine površinskog kopa “Podbraćan”
Vladimir Čebašek, Veljko Rupar (2018)Eksploatacijom boksita iz ležišta "Podbraćan" formiran je površinski kop sa maksimalnom visinom zavšne kosine od 280 m. Redovnom kontrolom stabilnosti trenutnog stanja kosina površinskog kopa utvrđeno je da faktor sigurnosti iznosi Fs = 1.71 – 1.85, a što je ukazalo da postoji mogućnost povećanja nagiba kosine. U radu je prikazan postupak analize mogućnosti povećanja nagiba završne kosine površinskog kopa "Podbraćan".Vladimir Čebašek, Veljko Rupar. "Аnaliza mogućnosti povećanja nagiba završne kosine površinskog kopa “Podbraćan”" in Mining and Geology Today, II international symposium, Belgrade, 04 - 05.12.2018., Rudarski institut, Balkanska akademija nauka, Akademija inženjerskih nauka Srbije (2018). https://doi.org/10.25075/SI.2018.17
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FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina
... chains. After the organic modification ofthe montmorillonite with the PTMA complex, stretching vibrations of the phenyl ring occurred. Analysis of FTIR spectroscopy data showed that the hydrogen bond is one of the most important mechanisms that occur between Na-montmorillonite and S-metolachlor. Comparing ...
... Spectrosc., 31, 1—10. DOI: 10.1016/S0924-2031(02)00065-6 Madejova, J. Palkova, H., Pentrak, M., Komadel, P., 2009. Near-infrared spectroscopic analysis of acid-treated organo-clays. Clays Clay Miner., 57, 392-403. DOI: 10.1346/CCMN.2009.0570311 Majdan, M., Bujacka, M., Sabah, E., Gladysz-Plaska ...Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević. "FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina" in Book of Proceedings / 3rd International and 15th National Congress Soils for Future Under Global Challenges, 21-24 September 2021 Sokobanja, Serbia , Belgrade : Serbian Society of Soil Science (2021)
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Crystal structure of K3EuSi2O7
alkalni silikati elemenata retkih zemalja, kristalna struktura, sinteza metodom fluksa, rendgenska difrakcija na monokristalu... scan range was from 3 to 60° 2θ, with a step size of 0.02° and time per step of 1.25 s. PDXL 2 software18 was used for the powder diffraction data analysis. Scanning electron microscopy (SEM) was used for the morphological characteriza- tion. The analyses were carried out on a single crystal using ...
... colorless single crystal was fixed on glass fiber using nail polish as glue and room-temperature X-ray diffraction data were collected. Relevant infor- mation on the crystal data, data collection and structure refinement are compiled in Table I. OnLin e Fir st CRYSTAL STRUCTURE OF K3EuSi2O7 3 ...
... presented in Table II. All figures of the crystal structures were prepared using the program VESTA.21 TABLE I. Experimental details. Crystal data Data collection Chemical formula K3EuSi2O7 Diffractometer Gemini S (Oxford Diffraction) Mr 437.44 Absorption correction Analytical + Empirical ...Sabina Kovač, Predrag Dabić, Aleksandar Kremenović. "Crystal structure of K3EuSi2O7" in Journal of the Serbian Chemical Society, National Library of Serbia (2021). https://doi.org/10.2298/JSC210218026K
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Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia
This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...... died macroscopically visible zoned Grs58–64Adr36–42Sps2 sample from Meka Presedla (Kopaonik Mt.) with optical micro- scopy, electron microprobe analysis (EMPA), and FT–IR and Raman methods. It is entirely slightly anisotropic and without presence of isotropic areas, which was primarily caused by ...
... maximum value of U and Th is 3 ppm (Table 1). Discussion Analysing mineral zonation is a hard and challenging task due to the dimensions of the analysis pit to the relative scale of zonation and the angle of zonation margin to the imaged Fig. 4. BSE image of garnet grains with positions analyzed ...
... 1567–1580. https://doi.org/10.2113/ gsecongeo.89.7.1567 Nicolescu S., Cornell D., Sodervall U. & Odelius H. 1998: Secondary ion mass spectrometry analysis of rare earth elements in grandite garnet and other skarn related silicates. European Journal of Mineralogy 10, 251–259. https://doi.org/10.1 ...Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol. "Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2021). https://doi.org/10.31577/GeolCarp.72.1.2
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Towards the semantic annotation of SR-ELEXIS corpus: Insights into Multiword Expressions and Named Entities
Овај рад представља активности на развоју корпуса ELEXIS-sr, српском додатку вишејезичном анотираном корпусу ELEXIS-а, који се састоји од семантичких анотација и репозиторија значења речи. ELEXIS је паралелни вишејезични анотирани корпус на десет европских језика, који може да се користи као вишејезички репер за евалуацију европских језика са мање и средње развијеним ресурсима. Фокус овог рада је на вишечланим изразима и именованим ентитетима, њиховом препознавању у скупу реченица ELEXIS-sr и поређењу са анотацијама на другим језицима. Разматрају се први кораци ...Cvetana Krstev, Ranka Stanković, Aleksandra Marković, Teodora Mihajlov. "Towards the semantic annotation of SR-ELEXIS corpus: Insights into Multiword Expressions and Named Entities" in Proceedings of the Joint Workshop on Multiword Expressions and Universal Dependencies (MWE-UD) @ LREC-COLING 2024, Turin, May 25, 2024, ELRA and ICCL (2024)
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Atmospheric exposure vs burying: influences on damage intensity of built-in kersantite in the monument of the Small Staircase (Belgrade, Serbia)
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 ...Nevenka Novaković, Predrag Dabić, Vesna Matović. "Atmospheric exposure vs burying: influences on damage intensity of built-in kersantite in the monument of the Small Staircase (Belgrade, Serbia)" in Environmental Earth Sciences, Springer Science and Business Media LLC (2023). https://doi.org/10.1007/s12665-023-10794-6
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Mio-Pliocene Geodynamics and its Stratigraphic Consequences in the Area of Avala Mt. (Belgrade, Serbia)
... and South-Eastern Europe data are obtained from the previously known stratigraphic units (Pannonian and Pontian, sensu Stevanović). Based on litho- and biostratigraphic analysis and measurement of basic structural elements of each units throughout the area, the obtained data were correlated with the ...
... Southern European Russia and the Pre-Caucasus. Unpubl. PhD °esis, Faculty of Geology, University of Saratov, 181 p. HILGEN, F.J., LOURENS, L.J. & VAN DAM, J.A. (2012): °e Neogene Period. In: GRADSTEIN, F.M., OGG, G.J., MARK, D. SCHMITZ, M.D. & OGG, G.M. (eds.): A Geological Time Scale 2012, Cambridge ...
... Southern European Russia and the Pre-Caucasus. Unpubl. PhD Thesis, Faculty of Geology, University of Saratov, 181 p. HILGEN, FJ., LOURENS, LJ. & VAN DAM, J.A. (2012): The Neogene Period. In: GRADSTEIN, EM., OGG, GJ., MARK, D. SCHMITZ, M.D. & OGG, G.M. (eds.): A Geological Time Scale 2012, Cambridge University ...Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević. "Mio-Pliocene Geodynamics and its Stratigraphic Consequences in the Area of Avala Mt. (Belgrade, Serbia)" in 7th International Workshop: Neogene of Central and South-Eastern Europe, Velika, Croatia, maj 2017, Croatian Geological Society (2017)
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Tectono-lithostratigraphic model of the Northern Banat Miocene sediments (Pannonian Basin, Serbia)
Dejan Radivojević, Ljupko Rundić (2017)... 2010, PIGOTT & RADIVOJEVIĆ, 2010, MATENCO & RADIVOJEVIĆ 2012, MAGYAR et al., 2013). °e database consisted of numerous seismic data, both 2D and 3D, and exploration wells data allowed building of subsurface model of explored area. Special emphasis was placed on the Miocene sediments which are the most ...
... 2010, PIGOTT & RADIVOJEVIC, 2010, MATENCO & RADIVOJEVIG 2012, MAGYAR et al., 2013). The database consisted of numerous seismic data, both 2D and 3D, and exploration wells data allowed building of subsurface model of explored area. Special emphasis was placed on the Miocene sediments which are the most ...
... Organic Geochem., 39/1, 118–134. MODELING OF ECOLOGICAL CONDITIONS IN THE EUXIN BASIN IN THE LATE SARMATIAN AND MAEOTIAN BY METHODS OF DIATOM ANALYSIS Eleonora Radionova Russia Geological Institute RAS, Pyzhevskiy per. 7, Moscow, 119017, Russia radionova@ginras.ru Modern diatom associations of ...Dejan Radivojević, Ljupko Rundić. "Tectono-lithostratigraphic model of the Northern Banat Miocene sediments (Pannonian Basin, Serbia)" in 7th International Workshop: Neogene of Central and South-Eastern Europe, Velika, Croatia, maj 2017, Croatian Geological Society (2017)
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Molecular and Isotope Composition of Biomarkers in Immature Oil Shale and its Liquid Pyrolysis Products (Open and Closed System)
Gordana Gajica, Aleksandra Šajnovic, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević, Ksenija Stojanović (2021)The molecular and isotopic composition of biomarkers in initial bitumen isolated from raw immature oil shale samples from the Lower Miocene Aleksinac Basin (Serbia) and liquid products (LPs) obtained by pyrolysis in open (OS) and closed systems (CS) are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in LPs is determined. The molecular composition of the LPs from the OS pyrolysis is very similar to those in initial bitumen, independently ...... temperature of 400 °C for 4 h. The biomarker signatures were evaluated using gas chromatography-mass spectrometry and carbon specific isotope analysis (δ13C) of individual n-alkanes in initial bitumen extracted from two immature oil shale samples (D13 and D16) and corresponding LPs obtained by ...
... pyrolysis have the distributions of biomarkers similar to those in crude oils generated in an early to main stage of “oil window“. The biomarker data suggests that mixed type I/II kerogen attained slightly higher maturity level by the CS pyrolysis than type I kerogen. The isotopic signatures of ...
... 1 ‰ in the sample D16), showing more pronounced difference for type I kerogen, enriched in 13C from algal biomass. The results indicate that δ13C data should be used with caution in interpretation of samples having different maturity and particularly of liquid products obtained by different system ...Gordana Gajica, Aleksandra Šajnovic, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević, Ksenija Stojanović. "Molecular and Isotope Composition of Biomarkers in Immature Oil Shale and its Liquid Pyrolysis Products (Open and Closed System)" in 30th International Meeting on Organic Geochemistry (IMOG 2021), European Association of Geoscientists & Engineers (2021). https://doi.org/10.3997/2214-4609.202134040