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Упит dcterms_subject_txt:Geothermal resources

456 items

  • Mineragenetske karakteristike i potencijalnostjuvelirskih mineralnih resursa leckog vulkanskog kompleksa

    Zoran Ž. Miladinović (2012-12-11)
    Jedan od najznačajnijih regiona u Srbiji, sa stanovišta potencijalnosti juvelirskih mneralnih resursa, predstavlja lecki vulkanski kompleks, tercijarne starosti i dominantno andezitskog sastava. Ovaj vulkanski kompleks površine preko 700km2 nalazi se u južnojSrbiji na prostoru imeđu Kuršumlije, Lebana i Medveđe.Prvi su pažnju na juvelirske mineralne sirovine ovog prostora obratili graditeljiJustinijane Prima-e (VI vek). Najintenzivnija istraživanja izvršena su u periodu 1980–1982. ali samo na malom prostoru krajnjeg jugoistočnog dela vulkanskog kompleksa.U Leckom vulkanskom kompleksu dominiraju andezitske stene i njihovi piroklastiti.Smatra se ...
    vulkanski kompleks, mineragenetske karakteristike, juvelirski mineralni resursi, nalazišta, potencijalnost, kvarc, ametist, ahat, kalcedon, jaspis, prognoza
    ... M., Precipitation of Colloidal Silica in Hydrothermal Solution by Metal Cations (Kamchatka, Russia), Proceedings, Twenty-Seventh Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, 2004, p .1-8. Rakić M. i dr., Osnovna geološka karta SFR Jugoslavije sa tumačem ...
    ... N.R., Holland, G.R., Lynne, B.Y., Martin, R., Newton, Z., Pastars, D., Sannazarro, K.L., Teece C., Silica Phases in sinters and residues from geothermal fields of New Zealand.” Earth Science Reviews, v. 66, 2004, p. 1-61. Rodgers, K. A., Hampton, W.A., Laser Raman identification of silica phases ...
    ... 3) MINERAGENETIC CHARACTERISTICS AND POTENTIALITY OF GEM MINERAL RESOURCES OF LECE VOLCANIC COMPLEX (SOUTH SERBIA) Summary One of the most significant regions in Serbia, relative to gemstone mineral resources, is the Lece volcanic complex, Tertiary age and dominantly andesitic c ...

  • 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

  • Процена ризика од загађивања водних ресурса под утицајем напуштених рударских радова на простору Србије

    Nebojša B. Atanacković (2018-08-31)
    Велики број напуштених рударских радова и ограничена средства за рекултивацијуи ремедијацију деградираних простора подстакле су развој метода за издвајањеприоритетних локација на које је потребно усмерити даља истраживања. У датомконтексту, у склопу израде дисертације спроведене су научно-истраживачкеактивности које су за предмет имале анализу утицаја значајнијих напуштенихрударских радова на водне ресурсе на простору Србије јужно од Саве и Дунава.Разматрање предметне проблематике извршено је кроз развој и примену семи-квантитативне методологије за анализу ризика од загађивања површинских иподземних вода на регионалној размери. Примењена ...
    анализа ризика, водни ресурси, водна тела, рудничке воде, рударскиотпад, аналитички хијерархијски процеси, кластер анализа, математичка теоријаатрибута, функције припадности, семи-квантитативне методе
    ... operations on water resources in Serbia, south of the Sava and Danube rivers. The subject matter outlined above was examined through the development and application of a semi-quantitative methodology for assessing the risk of pollution of surface water and groundwater resources on a regional scale ...
    ... groundwork for subsequent management, monitoring and protection of surface water and groundwater resources. Небојша Б. Атанацковић Докторска дисертација Key words: risk assessment, water resources, water bodies, mine water, mining waste, analytical hierarchical processes, cluster analysis ...
    ... 020 5. Appelo C.A.J., Postma D. (1993) Geochemistry, groundwater and pollution. A.A Balkema, Rotterdam. 6. Aswathanarayana U. (2003) Mineral Resources Management and the Environment. A.A. Balkema Publishers. 7. Atanacković N., Dragišić V., Stojković J., Papić P., Živanović V. (2013) Hydrochemical ...

  • Arsenic in tape waters of the south Pannonian basin (Serbia) and arsenic risk assessment

    Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)
    ... [14]. Based on a review of different literature sources, regions featuring high arsenic concentrations are generally associated with groundwater in geothermal areas or with low-temperature groundwater systems. Given that the sub- ject matter of this research was groundwater used for drink- ing water supply ...
    ... ROWLAND H.A.L., OMOREGIE E.O., ROMAIN M., JIMENEZ C., MERTENS J., BACIU C., HUG S.J., BERG M. Geochemistry and arsenic behaviour in groundwater resources of the Pannonian Basin (Hungary and Romania). Appl. Geochem. 26, 1, 2010. 9. UJEVIĆ M., DUIĆ Ž., CASIOT C., SIPOS L., SANTO V., DADIĆ Ž., HALAMIĆ ...

  • Preparation of Multimedia Document “YU Rock Scene”

    Milena Obradović, Aleksandra Arsenijević, Mihailo Škorić (2017)
    SUMMARY: This study will present the preparation process of a multimedia document entitled YU ROCK SCENE in which participants were senior students of undergraduate studies of the Department of Library and Information Science at the University of Belgrade Faculty of Philology during the academic year 2014/2015, as a part of the subject Multimedia Documents. This study gives an overview of the historical development of rock and roll in the territory of the former Yugoslavia, rock scene in Yugoslav republics, ...
    multimedia document, library science, information science, rock and roll, music, Yugoslavia
    ... We would like to thank the following individuals and institutions for their support and cooperation, for allowing us to use the rich information resources and for sharing the significant information on the Yugoslav rock scene: Petar Ignjatović, Željko Radǐsić, Miroljub Stojanović, Ivan Velisavljević ...

  • Navigacija budućnosti: poslovni rizici i prilike u rudarskoj industriji

    Petar Marković, Dejan Stevanović, Mirjana Banković, Vuk Lazić (2024)
    Sektor rudarstva i metalurgije se globalno suočava sa brzo evoluirajućim okruženjem u 2024. godini, koje karakteriše jedinstvena međusobna zavisnost rizika i prilika. Sektor je u središtu globalne energetske tranzicije, uz rastuću potražnju za kritičnim mineralnim sirovinama poput litijuma, nikla i bakra, koji su od suštinskog značaja za tehnologije obnovljive energije i električna vozila. Međutim, ova sve veća odgovornost donosi brojne izazove, uključujući pojačanu pažnju na ekološke, društvene i upravljačke (ESG) faktore, fizičke i tranzicione rizike uzrokovane klimatskim promenama, i ...

  • Development of a petrographic classification system for organic particles affected by self-heating in coal waste. (An ICCP Classification System, Self-heating Working Group – Commission III)

    M. Misz-Kennan, J. Kus, D. Flores, C. Avila, Z. Büçkün, N. Choudhury, K. Christanis, J.P. Joubert, S. Kalaitzidis, A.I. Karayigit, M. Malecha, M. Marques, P. Martizzi, J.M.K. O'Keefe, W. Pickel, G. Predeanu, S. Pusz, J. Ribeiro, S. Rodrigues, A.K. Singh, I. Suárez-Ruiz, I. Sýkorová, N.J. Wagner, D. Životić (2020)
    Self-heating of coal waste is a major problem in the leading coal-producing and consuming countries, independent of the recent or past coal exploitation history. The phenomenon of self-heating is dependent on many factors such as the properties of organic matter (maceral composition and rank), moisture and pyrite content, climate effects, and storage conditions (shape of the dump or compaction of the coal waste). Once deposited, coal waste undergoes oxidation, which can lead to self- heating with the overall temperatures ...
    Stratigraphy,Economic Geology,Geology,Fuel Technology

  • The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector

    Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković (2020)
    Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...
    energetska bezbednost, prirodni gas, fazi AHP, AHP višekriterijumska analiza, fazi teorija
    ... determining the energy security of a country is possible only if the geopolitical moment, climatic conditions, wealth and availability of energy resources and their usage by type and intensity are taken into account. In addition, economic growth, demographic indicators, political priorities, market ...
    ... implementing activities related to the acceptability and economy of a scenario. It is directly linked to national structures (institutions and human resources) [36], as well as the legal framework that follows relevant issues. The security of supply is a synthesis indicator that can be viewed in a very ...
    ... Description Fuzzification of Input Data Socioeconomic applicability Administrative applicability It is the readiness and operability of human resources to create, support, improve and ensure the execution of certain operations that will enable the realization of the energy scenario. Lack of adequate ...

  • Prirodno prečišćavanje i stimulisana bioremedijacija podzemnih voda zagađenih naftnim ugljovodonicima

    Nenad M. Marić (2016-09-26)
    Disertacija se konceptualno sastoji iz dva dela kojima je obuhvaćen pasivan (prirodnoprečišćavanje) i aktivan remedijacioni pristup (stimulisana bioremedijacija) kodpodzemnih voda zagađenih naftnim ugljovodonicima.U prvom delu disertacije prikazani su rezultati osmatranja procesa prirodnogprečišćavanja u podzemnim vodama na lokaciji istorijskog zagađenja kerozinom.Tragovi zagađenja naftnim ugljovodonicima pronađeni su 20 godina nakon prosipanjakerozina. Ovo je stvorilo osnovu za proučavanje efekata dugotrajne izloženostipodzemnih voda procesima biodegradacije u terenskim uslovima. Uočeno je da sesnižene koncentracije elektron akceptora (O2, NO3-, SO42-) i povišene koncentracijemetaboličkih produkata biodegradacije ...
    podzemne vode, naftni ugljovodonici, kerozin, prirodno prečišćavanje,stimulisana bioremedijacija
    ... 111. Schoel M (1984) Stable isotopes in petroleum research. AdvPetroleum Geochem 1, 215-245. 112. Shiklomanov IA, Rodda JC (2003) World Water Resources at the Beginning of the 21st Century. UNESCO/IHP Int. Hydrology Series, Cambridge University Press. 113. Sl.glasnik RS br. 88/2010 (2010) Uredba ...
    ... Doktorska disertacija Literatura 165 138. Vrba, J, van der Gun J (2004) The World’s Groundwater Resources, http://www.un-igrac.org/dynamics/modules/SFIL0100/view.php?fi_Id=126. 139. Vroblesky D, Chapelle F (1994) Temporal and spatial changes of terminal ...
    ... terminal electron-accepting processes in a petroleum hydrocarbon-contaminated aquifer and the significance for contaminant biodegradation. Water Resources Research, Vol. 30, no. 5, 1561-1570. 140. Vroblesky DA, Robertson JF, Petkewich MD, Chapelle FH, Bradley PM, Landmeyer JE (1997) Remediation of ...

  • Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining

    Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić (2021)
    Geology,Geotechnical Engineering and Engineering Geology
    ... Contributions: Conceptualization, V.Č.; Methodology, V.Č.; Validation, V.R., S.Ð., and F.M.; Formal analysis, V.R.; Investigation, V.Č. and V.R.; Resources, V.Č. and V.R.; Data curation, V.R., S.Ð., and F.M.; Writing—original draft preparation, V.Č.; Writing—review and editing, V.R.; Visualization, ...

  • Geološko-geofizički model dela Timočkog magmatskog kompleksa

    Snežana M. Ignjatović (2014-06-30)
    Timočki magmatski kompleks (TMK) u geotektonskom smislu pripada KarpatoBalkanidimaistočne Srbije, koji su deo Tekijsko-Dakijske jedinice. TMK je nastaotokom kontinuirane vulkanske aktivnosti, koja je trajala oko deset miliona godina iodvijala se generalno u tri faze (Zimmerman et al., 2008, Kolb et al., 2013, Banješević,2006). Pomeranje vulkanskog fronta je išlo od istoka ka zapadu (von Quadt et al., 2002,2003, 2007). Ovaj kompleks pripada tetijskom evroazijskom metalogenetskom pojasu usvetu poznat po ležištima bakra i zlata (Janković, 1990).U doktorskoj disertaciji su prikazani rezultati ...
    Timočki magmatski kompleks, aeromagnetska istraživanja, gravimetrijskaistraživanja, 2D geološko-geofizički model, Valja Strž, magmatsko telo
    ... Univerziteta u Beogradu, Rudarsko-geološkog fakulteta, sa kompanijama „Dundee plemeniti metali d.o.o” (od 2009. godine kompanija se zove „Avala resources d.o.o”) i ”NIS Gazprom neft” (NTC- sektor za geofiziku). Zahvaljujem se svim članovima komisije na srtučnoj pomoći prilikom izrade doktorske ...
    ... hit-high-grade-copper-at timok/1001679498/). Nove porfirske zlato-bakar pojave otkrivene u zapadnom delu TMK, oko plutonita Valja Strţ (Avala Resources Ltd.) nagoveštavaju da ima još mnogo toga da se otkije u TMK. Ovi rezultati su inicirali nova geološka istraţivanja, posebno ona koja se odnose ...
    ... izrade ove doktorske disrtacije, dobijeni su na korišćenje od kompanije „Dundee plemeniti metali d.o.o” (od 2009. godine kompanija se zove „Avala resources d.o.o”). Kompanija „Dundee plemeniti metali d.o.o ” angaţovala je kompaniju „Geotech Airborne Ltd. (Geotech) ” iz Kanade da bi se obavila aer ...

  • The application of ArcGIS for assessing the potential of solar energy in urban area: The case of Vranje

    Boban Pavlović, Milica Pešić-Georgiadis (2019)
    In order to determine the solar energy potential for a specified location, it is crucial to consider the latitude, altitude, slope, terrain morphology, atmospheric conditions, etc. Such a complex calculation and mapping of solar energy can be done using the ArcGIS geoprocessing tool, named Area Solar Radiation (ASR). By using the ASR tool, supported with the adequate input data, it is possible to calculate the maximum solar radiation energy (irradiation) for a defined area and for a specified time ...
    Obnovljivi izvori energije, potencijal solarne energije, GIS, mapiranje solarnog potencijala
    ... lies in hydropotential (0.8 Mtoe per year is unused, and 0.9 Mtoe per year is the used hydropotential), 0.2 Mtoe per year in geothermal energy, 0.2 Mtoe per year in geothermal energy, 0.1 Mtoe per year in wind energy, 0.2 Mtoe per year in solar energy and 0.04 Mtoe per year in biodegradable part of ...
    ... levels of environmental impact, show low levels of development. The utilization of other renewable sources of energy, such as wind, solar, and geothermal, is marginal (Lewis M., 2018). The estimated potential can have a considerable contribution to the lesser utilization of fossil fuels, as ...
    ... from renewable energy sources, the largest share has biomass (56%), then hydropower (38%), wind power (5%), while biogas, solar energy, and geothermal energy participate with 1% in total share (Republic of Serbia, 2018). 12% International Conference on Energy and Climate Change, 9-11 October ...

  • Opremanje bušotine X zavojnom pumpom

    Milan Filipović (2024)
    Ovaj rad se bavi osnovnim pojmovima i karakteristikama zavojnih pumpi.Prikazan je sklop zavojnih pumpi i njena prateća oprema. Objašnjen je princip rada zavojnih pumpi kao i uloga svakog mašinskog elementa koji se nalazi u pumpi. Razmotrene su prednosti i nedostaci primene ovih primarnih mehaničkih metoda eksploatacije ugljovodonika. Dat je uvid u inovativna rešenja problematike primene zavojnih pumpi. Na konkretnom primeru bušotine X su prikazani problemi kao i rešenja primene ovih primarnih mehaničkih metoda u praksi. Napravljena je detaljna analiza ...
    zavojne pumpe, oprema, primarne mehaničke metode, ugljovodonici, analiza rada
    ... , Buza, Z. (1999). "Sistem analiza proizvodnje nafte i gasa eruptivnom metodom". DIT Novi Sad UPC, Katy TX, 2024, https://www.upcoglobal.com/resources/technical- papers/free-gas-handling-at-the-pump-intake M3JABA O AYTOPCTBY 3ABPILIHOT PAJA MHwe H rpe3HMe cryJleHTa MunagH OanunoBHh ...

  • The ‘Umka’ landslide

    Uroš Đurić, Dragana Đurić, Miloš Marjanović, Biljana Abolmasov, Ivana Vasiljević (2024)
    We present an in-depth landslide map of the ‘Umka’ landslide near Belgrade, Serbia, at a scale of 1:5000. The map delineates elements at risk, primarily buildings and road infrastructure impacted by the landslide displacements of several cm per year, introduced during frequent reactivation stages. The Main map results from a survey of over 350 buildings and more than 7 km of state and local roads. The acquisition techniques included engineering geological field mapping, building survey, and visual interpretation of ...
    rizik od klizišta, elementi rizika, kartiranje pomoću drona, ispitivanje objekata, geotehnički monitoring

  • Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)

    Nikoleta Aleksić, Aleksandar Kostić, Miloš Radonjić (2021)
    This paper presents the first data on the organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in the East Herzegovina region of the External Dinarides. Representative, organic-rich samples from outcropping sedimentary rocks of different ages in the area (Triassic to Neogene) were selected and analysed. The organic matter was studied by Rock-Eval pyrolysis and under the microscope in reflected non-polarized light and incident blue light. The results obtained show the presence of different types of organic ...
    nafta i gas, Rock-Eval, refleksija vitrinita, maceral, termička zrelost
    ... 237–261. Frasheri, A., Cela, B., Kodhelaj, N. & �odhorjani, S., 2009. Menagment of geothermal energy resources in Albania. In: Markopoulos, T., Fotidis, I., Kotsopoulos, T. & Nikita- Martzopoulou, C. (eds), Geothermal Energy in the Spotlight, International Forum, 11–12 December 2009. Aristotle University ...
    ... 237-261. Frasheri, A., Cela, B., Kodhelaj, N. & Thodhorjani, S., 2009. Menagment of geothermal energy resources in Albania. In: Markopoulos, T., Fotidis, I, Kotsopoulos, T. & Nikita- Martzopoulou, C. (eds), Geothermal Energy in the Spotlight, International Forum, 11-12 December 2009. Aristotle University ...
    ... N., Samardžić, N. & Hrvatović, H., 2010. �e current sta- tus of geothermal energy use and development in Bosnia and Herzegovina. In: Proceedings World Geothermal Congress 2010, Bali, Indonesia, 25–29 April 2010. International Geothermal Association, Bali, pp. 1–10. [CD Edition.] Mirković, M., Kalezić ...

  • Sistem poslovne inteligencije za upravljanje zaštitom na radu u rudarskoj industriji

    Ljiljana R. Kolonja (2016-09-23)
    Postojeća organizacija zaštite na radu na površinskim kopovima uglja često nije umogućnosti da blagovremeno i tačno ukaže na nedostatke, koji mogu u bližoj ilidaljoj budućnosti da budu uzrok narušavanja bezbednosti radnika, ali i uzrokoštećenja materijalnih dobara rudnika. Nemogućnost donošenja pravovremenihodluka je moguće izbeći uvođenjem softverski podržanih sistema za praćenje ianalizu bezbednosti i zaštite na radu.Osnovni cilj ove doktorske disertacije je definisanje metodologije i razvoj modelasistema upravljanja zaštitom na radu, koji će omogućiti savremen, adekvatan isveobuhvatan način praćenja i analize ...
    rudarstvo, bezbednost i zdravlje na radu, poslovna inteligencija,tehnička zaštita, ontologije
    ... of Natural Resources and Mines, The State of Queensland. O'BRIEN, J. A. 1998. Management information systems: Managing information technology in the networked enterprise, McGraw‐Hill Professional. OBRADOVIĆ, I. & STANKOVIĆ, R. 2008. SOFTWARE TOOLS FOR SERBIAN LEXICAL RESOURCES. INFOtheca‐Journal ...
    ... processing modelling with the specification of business activities in the system and modelling of the behaviour and interaction between resources. The implementation of the system is illustrated with the characteristic components of the injury and illness recordkeeping and ...

  • Actual contamination of the Danube and Sava rivers at Belgrade (2013)

    Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer (2014)
    rečni sistemi, stanje zagađenja, organski zagađivači, teški metali, skrining analize, non-target screening
    ... Schwarzbauer, A. Georgakopoulos, Environ. Pollut. 151 (2008) 231 32. M. Ash, I. Ash, Handbook of Green Chemicals, 2nd ed., Synapse Information Resources, New York, 2004 33. L. S. Sheldon, R. A. Hites, Environ. Sci. Technol. 13 (1979) 574 34. J. Guardiola, F. Ventura, J. Rivera, Water Supp. 7 (1989) ...

  • Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)

    Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović (2020)
    Geochemistry and Petrology

  • SASA Dictionary as the Gold Standard for Good Dictionary Examples for Serbian

    Ranka Stanković, Branislava Šandrih, Rada Stijović, Cvetana Krstev, Duško Vitas, Aleksandra Marković (2019)
    У овом раду представљамо модел за избор добрих примера за речник српског језика и развој иницијалних компоненти модела. Метода која се користи заснива се на детаљној анализи различитих лексичких и синтактичких карактеристика у корпусу састављених од примера из пет дигитализованих свезака речника САНУ. Почетни скуп функција био је инспирисан сличним приступом и за друге језике. Дистрибуција карактеристика примера из овог корпуса упоређује се са карактеристиком дистрибуције узорака реченица ексцерпираних из корпуса који садрже различите текстове. Анализа је показала да ...
    Српски, добри примери из речника, аутоматизација израде речника, издвајање својстава, Машинско учење
    ... criteria, primarily extralinguistic ones. The corpus of examples in paper form, used for this monolingual thesaurus, was made up of excerpts from resources written in Serbo- Croatian (SC), from the beginning of the 19th century to the present day, as well as about 300-word collections (for details see ...

  • Upper Miocene depositional environments of the Kikinda-Mokrin High (Serbia)

    Saša Ivanišević, Dejan Radivojević (2018)
    Exploration for oil and gas in mature areas, such as the Pannonian Basin, can benefit from reexamination of old data using more advanced modern workflows that focus on the temporal and spatial aspects of sediment deposition. Specifically, we apply a new environment of deposition model that interprets the Upper Miocene- Pliocene sediments as being deposited in a rapidly filling basin characterized by quick shelf edge progradation from the northwest toward the southeast. Reconstruction of this shelf edge trajectory reveals ...
    naftna geologija, depozicione sredine, formacije, Panonski basen