Претрага
153 items
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Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept
Improvements of Machine Learning-based landslide prediction models can be made by optimizing scale, customizing training samples to provide sets with the best examples, feature selection, etc. Herein, a novel approach, named Cross-Scaling, is proposed that includes the mixing of training and testing set resolutions. Hypothetically, training on a coarser resolution dataset and testing the model on a finer resolution should help the algorithm to better generalize ambiguous examples of landslide classes and yield fewer over/underestimations in the model. This ...Uroš Đurić, Miloš Marjanović, Zoran Radić, Biljana Abolmasov. " Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept" in Engineering Geology , Elsevier (2019). https://doi.org/10.1016/j.enggeo.2019.05.007
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Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia
... with quartzite, limestone, spilite, and carbonates from the upper Triassic. Part of the eastern portion of the KU is covered by unaltered Lower Cretaceous para-flysch (Schefer et al. 2007; Zelić et al. 2010). The east- ern part of the study area consists of SMM metamorphic rocks, which are ...
... line granitic rocks (Resimić-Šarić et al. 2006). Overlying ophiolites in the study region are Tithonian limestone overstep sequence and/or Cretaceous sedimentary rocks (Dimitrijević 1997). The western part of the study area corresponds to Kopaonik Unit (KU), also known as Paikon Unit in Greece ...
... ite class);Jo— Class 1 (ophiolite class) • DatasetA; • DatasetB; • DatasetC with dataset C exhibiting higher values and dataset A exhibiting lower values. The true positive (TP) rate of the ophiolite class indicates that dataset C exhibits the highest rates, while conversely, the dataset C ...Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski. "Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia" in Earth Science Informatics, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s12145-024-01243-4
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Flood protection and water utilization of karst poljes: example of Gatačko Polje, Eastern Herzegovina
Tina Dašić, Ljiljana Vasić (2020)Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry,Global and Planetary ChangeTina Dašić, Ljiljana Vasić. "Flood protection and water utilization of karst poljes: example of Gatačko Polje, Eastern Herzegovina" in Environmental Earth Sciences, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s12665-020-08987-4
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Dosadašnja saznanja o bijelim boksitima na prostoru Crne Gore
Mia Jovanović, Slobodan Radusinović, Vladimir Simić. "Dosadašnja saznanja o bijelim boksitima na prostoru Crne Gore" in Geološki glasnik (2023)
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Површинско распадање керсантита из Тешића мајдана у корелацији са начином обраде на примеру малог степеништа (Београдска тврђава)
Невенка Новаковић (2024)Архитектуру Београда на прелазу 19. у 20. век обележила је употреба керсантита из каменолома Тешића мајдана. Kao камен високих декоративних својстава, керсантит је коришћен за јавне споменике, делове или потпуну изградњу објеката (Народна скупштина Србије, Мало степениште, Народни музеј и др.). Како очување споменика културе изискује познавање својстава уграђеног камена, истраживања су обухватила детаљно проучавање петролошких, хемијских и физичких карактеристика керсантита из Тешића мајданa и узорака камена из споменика Мало степениште (студија случаја). Након детаљног мапирања стања керсантита, лабораторијских ...керсантит, Мало степениште, споменик културе, архитектонски камен, физичко-хемијско распадање, мапирање, форме распадања, површинска обрадаНевенка Новаковић. Површинско распадање керсантита из Тешића мајдана у корелацији са начином обраде на примеру малог степеништа (Београдска тврђава), Београд : [Н. Новаковић], 2024
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Генеза хидротермалног Cu-Au система Чукару Пеки (Источна Србија)
Милош Велојић (2021)Главни циљ испитивања хидротермалног система Чукару Пеки је разумевање процеса који су довели до његовог настанка, а посебно еволуције рудоносних флуида из којих је настала рудна минерализација. Утврђено је да је овај систем настао у периоду пре 86,78 - 85,19 Ma из магматског интрузива који је био богат водом и имао висок оксидативни потенцијал. Током хлађења, из овог магматског интрузива су издвојени веома врели флуиди, који су имали температуре изнад 600°С и висок салинитет. У ...Борска металогенетска зона, Тимочки магматски комплекс, порфирска лежишта, високосулфидациона лежишта, флуидне инклузије, рудне парагенезе, геохронологија, хидротермалне алтерације, LA-ICP-MS... isotope tracing of the Cretaceous magmatism of East-Serbia as part of the Apuseni-Timok-Srednogorie metallogenic belt. Geologica Carpathica, 53, 175–177. 142. von Quadt, A., Peytcheva, I., Heinrich, C., Cvetković, V., Banjesević, M. and Andrew, C.J., 2007. Upper Cretaceous magmatic evolution and ...
... deposit evolution of the Alpine-Balkan-Carpathian-Dinaride province, Vol 79. Abstracts volume, Bucharest, 2001. 9. Banješević, M., 2010. Upper Cretaceous magmatic suites of the Timok magmatic complex. Geološki anali Balkanskoga poluostrva, (71), 13-22. 10. Banješević, M. & Large, D., 2014. Geology ...
... hydrothermal alteration and ore mineralization. Ore Geology Reviews, 39(1-2), 75-90b. 13. Berza, T., Constantinescu, E., & Vlad, S.N., 1998. Upper Cretaceous magmatic series and associated mineralisation in the Carpathian–Balkan Orogen. Resource Geology, 48(4), 291-306. 14. Блечић, Н., 1974. Течно-гасне ...Милош Велојић. Генеза хидротермалног Cu-Au система Чукару Пеки (Источна Србија), Београд : [М. Велојић], 2021
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Groundwater resources for drinking water supply in Serbia´s Southeast Pannonian basin
Dušan Polomčić, Bojan Hajdin, Marina Ćuk, Petar Papić, Zoran Stevanović. "Groundwater resources for drinking water supply in Serbia´s Southeast Pannonian basin" in Carpathian Journal of Earth and Environmental Sciences (2014)
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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. "Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)" in Carbonates and Evaporites, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s13146-019-00548-6
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Geonasleđe Golije i Peštera
Ljiljana V. Grujičić-Tešić (2017-09-01)Sprovedena istraživanja u ovoj studiji obuhvatila su izdvajanje, opis, evaluaciju i valorizaciju objekata geonasleđa u cilju razvoja istraživane oblasti sa stanovišta geonauka, geoturizma i geoekologije. Na izučavanom području objekti geonasleđa su evidentirani, interpretirani, vrednovani i kategorisani, dat je predlog promocije geoobjekata, i na kraju predložena dopuna inventara objekata geonasleđa Srbije.U protekle četiri godine, na kompleksu geotopa Golije i Peštera istražena su geološka svojstva stena (tip stene, starost, fosilni sadržaj, morfološke i hidrogeološke karakteristike itd.), na osnovu čega je bilo ...... zaštitu prirode Srbije. Beograd. 60. str. 181 - 188. Grujičić-Tešić, Lj., Rabrenović, D., Kovačević, J., Gerzina, N. and Đerić, N. (2016): Upper Cretaceous geosites on Golija Mountain – objects of geoheritage. Geologia Croatica, 69, 3, pp. 337–345. Hose, T. A. (1997). Geotourism - selling the earth ...
... rezultatima obrade gornjokredne faune za list Ivanjica Ibid. Beograd. pp.44. Pejović, D., Radoičić, R. (1974) Biostratigraphic investigation of the Cretaceous of Mokra Gora. Internal report .Geological Survey of Serbia. pp. 44 - 58. Pejović, D., Radoičić, R. (1985/86): Prilog stratigrafiji gornje krede ...
... objekata; Zaštita prirode. Zavod za zaštitu i naučno proučavanje prirodnih retkosti NR Srbije. Beograd. 1. str. 11 - 26. Steuber, T. (1999): Cretaceous rudists of Boeotia, central Greece.– Spec. Papers in Paleontology. 61.pp. 229 Stojanović, V. (2007): Održivi razvoj turizma i životne sredine ...Ljiljana V. Grujičić-Tešić. "Geonasleđe Golije i Peštera" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2017-09-01)
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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 ...Saša Ivanišević, Dejan Radivojević. "Upper Miocene depositional environments of the Kikinda-Mokrin High (Serbia)" in Interpretation, AAPG SEG (2018). https://doi.org/10.1190/INT-2017-0084.1
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Determination of Mechanical Properties of Altered Dacite by Laboratory Methods
This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...... es within the volcanic area [11]. Dacite deposit is of simple geological structure and essentially contains three categories of Dacite rocks and Cretaceous flysch sediments. Nevertheless, dacite is grusified in the near-surface part, followed by a zone of altered dacite. The zone of altered dacite (AD) ...
... transition zone represented the interval in which there was a gradual alteration in the rock mass (dacite–altered dacite) and was defined from the mapped lower part of the altered dacite to the mapped upper part of the dacite. Minerals 2021, 11, 813 3 of 19 Figure 1. Lithological column of the exploration ...
... rock material during the formation of composite samples. Using plaster to connect separate discs [4] was shown as inadequate due to plaster failure at lower loads, causing the discs to displace and introducing non-uniform stress distribution throughout the disc interfaces. Tziallas et al. [1] found that ...Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović. "Determination of Mechanical Properties of Altered Dacite by Laboratory Methods" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11080813
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Regionalno-geološke karakteristike miocenskih sedimenata na prostoru severnog Banata
Dejan N. Radivojević (2014-12-30)Predmet doktorske disertacije predstavljalo je rešavanje strukturno‐stratigrafskihodnosa miocenskih sedimenata na prostoru severnog Banata. U cilju regionalnogsagledavanja, korišćeni su svi raspoloživi geofizički i geološki podaci sa širegistražnog područja, odnosno iz celog Panonskog basena i susednog orogena. Osimklasičnih metoda primenjene su i savremene metode seizmostratigrafije,tektonostratigrafije i riftne sekvencione stratigrafije. Primenjene metode omogućilesu izradu modela progradacije ivice šelfa za ceo Panonski basen, modela uzajamnihveza između basena i geodinamičkog modela jugoistočnog oboda basena.Jezero Panon je većim delom zapunjeno prilivom sedimenata paleo‐Dunavom saseverozapada, odnosno ...Centralni Paratetis, Panonski basen, miocen, jezero Panon,seizmostratigrafija, sekvenciona stratigrafija, paleogeografija, geodinamika... research into Upper Cretaceous magmatic rocks in the Apuseni Mountains, Romania, Tectonophysics, v. 180, p. 309–322, doi:10.1016/0040‐1951(90) 90316‐Z. Pǎtraşcu, S., M. Bleahu, C. Panaiotu, and C. E. Panaiotu, 1992, The paleomagnetism of the Upper Cretaceous magmatic rocks in the ...
... Geosci., v. 101(1), p. 139–183, doi:10.1007/s00015‐008‐1247‐3. Schuller, V., W. Frisch, M. Danisik, I. Dunkl, and M. C. Melinte, 2009, Upper Cretaceous Gosau deposits of the Apuseni Mountains (Romania) – similarities and differences to the Eastern Alps, Austrian J. Earth Sci., v. 102, p. 133–145 ...
... 1994, Alpine tectonics of the Pannonian Basin, Hungary: Ph.D. thesis, Rice University, Houston, Texas, 501 pp. Tari, G., 1995, Eoalpine (Cretaceous) tectonics in the Alpine–Pannonian transition zone, in F. Horvath, G. Tari, and Cs. Bokor, eds., Extensional collapse of an Alpine ...Dejan N. Radivojević. "Regionalno-geološke karakteristike miocenskih sedimenata na prostoru severnog Banata" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-12-30)
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An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)
N. Andrić-Tomašević, V. Simić, O. Mandic, D. Životić, M. Suárez, E. García-Romero. "An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)" in Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier BV (2020). https://doi.org/10.1016/j.palaeo.2020.110145
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Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays
... 031. 74. Kadir, S.; Külah, T.; Erkoyun, H.; Uyanık, N.Ö.; Eren, M.; Elliott, W.C. Mineralogy, geochemistry, and genesis of bentonites in Upper Cretaceous pyroclastics of the Bereketli member of the Reşadiye Formation, Reşadiye (Tokat), Turkey. Appl. Clay Sci. 2021, 204, 106024. 75. Ilić, M.; Pavlović ...
... deposits of refractory and ceramic clays in Serbia occur in Neogene sed- iments mainly along the southern border of the Pannonian basin, and in the Lower Juras- sic sediments of East Serbia [47–50]. From Table 1 it is obvious that clays derived from different host rocks have specific mineral compositions ...
... in general, the exploration level of B category is 4 times less than A category, and in the case of C1 category the exploration level is 16 times lower compared to A category (based on the usual maximum distances between explora- tion works for majority of IMR). That is the reason why C1 category is ...Vladimir Simić, Dragana Životić, Zoran Miladinović. "Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays" in Resources, MDPI AG (2021). https://doi.org/10.3390/resources10060063
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Multihazard Exposure Assessment on the Valjevo City Road Network
Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović (2019)Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović. "Multihazard Exposure Assessment on the Valjevo City Road Network" in Spatial Modeling in GIS and R for Earth and Environmental Sciences, Elsevier Inc (2019). https://doi.org/10.1016/B978-0-12-815226-3.00031-4.
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Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeFen Huang, Ljiljana Vasic, Xia Wu, Jianhua Cao, Saša Milanovic. "Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia" in Environmental Earth Sciences, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s12665-019-8452-4
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Еоценска фауна југозападног дела Сирт басена (Либија)
Љупко Рундић, Мери Ганић (2020)Љупко Рундић, Мери Ганић. "Еоценска фауна југозападног дела Сирт басена (Либија)" in Записници Српског геолошког друштва, Српско геолошко друштво (2020)
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Concepts for Improving Machine Learning Based Landslide Assessment
Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić. "Concepts for Improving Machine Learning Based Landslide Assessment" in Natural Hazards GIS-based Spatial Modeling Using Data Mining Techniques, Advances in Natural and Technological Hazards Research, volume 48, Springer Nature Switzerland AG 2019 (2019). https://doi.org/10.1007/978-3-319-73383-8_2
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Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics
Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated in the south of Serbia and occupying an area of 700 km2. This volcanic complex is composed predominantly of andesites, with sporadic occurrences of andesite-basalts, dacites and latites, and features agate formations that have been very little investigated. This study focuses on five selected agate occurrences within the Lece Volcanic Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma mass spectrometry ...Zoran Miladinović, Vladimir Simić, Nenad Nikolić, Nataša Jović Orsini, Milena Rosić. "Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics" in Minerals, MDPI AG (2024). https://doi.org/10.3390/min14050511
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Mineral Resources of Serbia: Environmental, Societal and Economic Challenges
... occasionally silicification. The gold mineralization is mostly hosted within a favourable sedimentary package which is underlain by Jurassic and Lower Cretaceous limestones (KLS limestone) and consists predominantly of calcareous sandstones and conglomerates which include an interbedded fine- grained ...
... Jurassic strata, Middle Jurassic carbonates and radiolarites, Late Jurassic to Early Cretaceous pelagic series and Albian to Cenomanian Molasse-type deposits. Geticum was intruded by Palaeozoic granitoids and Late Cretaceous Timok magmatic complex and Ridan-Krepoljin zone effusives. Complimentary Contributor ...
... Margin /Cretaceous/) Many deposits in the East Serbian part of Carpatho-Balkan metallogenic province are associated with horst-graben structures formed above the subducted oceanic lithosphere under the Eurasian plate, following the closure of a Tethyan branch during Early Cretaceous. The most ...Vladimir Simić, Rade Jelenković, Dragana Životić. "Mineral Resources of Serbia: Environmental, Societal and Economic Challenges" in Serbia: Current Issues and Challenges in the Areas of Natural Resources, Agriculture and Environment,, Nova Science Publishers, Inc. (2019)