TY  - JOUR
AU  - Vakanjac, Boris
AU  - Jelić, Ivana
AU  - Rikalović, Milena
AU  - Ristić-Vakanjac, Vesna
AU  - Nikezić, Dušan
AU  - Naunović, Zorana
AU  - Dimović, Slavko
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2941
AB  - The present study deals with the abundance of the most common accessory elements of radioactivity carriers on the Stara Planina mountain at four defined locations. All investigated locations have increased radioactivity, greater than 200 cps, up to 1250 cps. In all examined samples the following elements were detected and their concentrations were determined: Zr, Rb, W, Mo, Sn, Zn, Cu, As, Sb, Ba, Ni, Cr, V, and Ti. The analysis showed that depending on the sample, elevated concentrations of all detected elements except titanium were found. As all localities containing the listed detected elements are located near watercourses, all the present elements, and in particular, those with elevated concentrations can be relatively easily transferred to the environment by water action. Likewise, there is the possibility of eolic erosion from the investigated deposits and tailing dams whereby these chemical elements and/or radionuclides would be distributed to areas away from the primary sources of natural radioactivity. These have a high risk of spreading and therefore have harmful or radioecological effects on the environment. The study indicated a need for adequate monitoring, and risk assessment of the examined locations, which could prevent the distribution of these elements further into the environment.
T2  - Nuclear Technology and Radiation Protection
T1  - Investigation of accessory elements of representative petrologic radioactivity carriers at Stara Planina, Serbia
IS  - 4
VL  - 34
DO  - https://doi.org/10.2298/NTRP190709039V
ER  - 

@article{
author = "Vakanjac, Boris and Jelić, Ivana and Rikalović, Milena and Ristić-Vakanjac, Vesna and Nikezić, Dušan and Naunović, Zorana and Dimović, Slavko",
year = "2019",
abstract = "The present study deals with the abundance of the most common accessory elements of radioactivity carriers on the Stara Planina mountain at four defined locations. All investigated locations have increased radioactivity, greater than 200 cps, up to 1250 cps. In all examined samples the following elements were detected and their concentrations were determined: Zr, Rb, W, Mo, Sn, Zn, Cu, As, Sb, Ba, Ni, Cr, V, and Ti. The analysis showed that depending on the sample, elevated concentrations of all detected elements except titanium were found. As all localities containing the listed detected elements are located near watercourses, all the present elements, and in particular, those with elevated concentrations can be relatively easily transferred to the environment by water action. Likewise, there is the possibility of eolic erosion from the investigated deposits and tailing dams whereby these chemical elements and/or radionuclides would be distributed to areas away from the primary sources of natural radioactivity. These have a high risk of spreading and therefore have harmful or radioecological effects on the environment. The study indicated a need for adequate monitoring, and risk assessment of the examined locations, which could prevent the distribution of these elements further into the environment.",
journal = "Nuclear Technology and Radiation Protection",
title = "Investigation of accessory elements of representative petrologic radioactivity carriers at Stara Planina, Serbia",
number = "4",
volume = "34",
doi = "https://doi.org/10.2298/NTRP190709039V"
}

Vakanjac, B., Jelić, I., Rikalović, M., Ristić-Vakanjac, V., Nikezić, D., Naunović, Z.,& Dimović, S.. (2019). Investigation of accessory elements of representative petrologic radioactivity carriers at Stara Planina, Serbia. in Nuclear Technology and Radiation Protection, 34(4).
https://doi.org/https://doi.org/10.2298/NTRP190709039V

Vakanjac B, Jelić I, Rikalović M, Ristić-Vakanjac V, Nikezić D, Naunović Z, Dimović S. Investigation of accessory elements of representative petrologic radioactivity carriers at Stara Planina, Serbia. in Nuclear Technology and Radiation Protection. 2019;34(4).
doi:https://doi.org/10.2298/NTRP190709039V .

Vakanjac, Boris, Jelić, Ivana, Rikalović, Milena, Ristić-Vakanjac, Vesna, Nikezić, Dušan, Naunović, Zorana, Dimović, Slavko, "Investigation of accessory elements of representative petrologic radioactivity carriers at Stara Planina, Serbia" in Nuclear Technology and Radiation Protection, 34, no. 4 (2019),
https://doi.org/https://doi.org/10.2298/NTRP190709039V . .

TY  - JOUR
AU  - Alzarog, Taher Mohamed
AU  - Vakanjac, Boris
AU  - Jelić, Ivana
AU  - Ristić Vakanjac, Vesna
AU  - Naunović, Zorana
AU  - Đorđević Milošević, Suzana
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2943
AB  - Global population is growing rapidly. As a result, increasingly large areas are being settled and farmed. This devastates soils and causes pollution by heavy metals and other components. Heavy metals in the environment originate from both natural and anthropogenic sources. Natural sources generally include rock weathering and the propagation of heavy metals, such as Cr and Ni, from ultrabasic rocks. These are natural processes that generally do not threaten human health. Anthropogenic sources include industry and inappropriate disposal of waste in the environment. In such cases concentrations of heavy metals can be harmful to people and other living beings. Al Zintan is a city located in northwestern Libya, on a plateau mainly built up of Cretaceous sediments. Since the 1980’s, nomadic population has rapidly been settling this area. As a result, a former part of the desert was transformed and is used for farming. Soil sampling at Al Zintan was conducted in 2017, across a 2×2 km grid. A total of 143 samples were collected from depths of about 30 cm. The samples weighed 2 to 2.5 kg and generally comprised sand with a clay component. A Niton Xl3t goldd+ instrument was used for chemical analyses, based on which GIS heavy-metal distribution maps were generated. The distribution of Cr, Ni, Cu and Zn is discussed on the paper.
T2  - Geološki anali Balkanskoga poluostrva
T1  - Distribution of chromium, nickel, copper and zinc in the Al Zintan area, northwestern Libya
IS  - 2
VL  - 79
DO  - 10.2298/GABP1802029A
ER  - 

@article{
author = "Alzarog, Taher Mohamed and Vakanjac, Boris and Jelić, Ivana and Ristić Vakanjac, Vesna and Naunović, Zorana and Đorđević Milošević, Suzana",
year = "2018",
abstract = "Global population is growing rapidly. As a result, increasingly large areas are being settled and farmed. This devastates soils and causes pollution by heavy metals and other components. Heavy metals in the environment originate from both natural and anthropogenic sources. Natural sources generally include rock weathering and the propagation of heavy metals, such as Cr and Ni, from ultrabasic rocks. These are natural processes that generally do not threaten human health. Anthropogenic sources include industry and inappropriate disposal of waste in the environment. In such cases concentrations of heavy metals can be harmful to people and other living beings. Al Zintan is a city located in northwestern Libya, on a plateau mainly built up of Cretaceous sediments. Since the 1980’s, nomadic population has rapidly been settling this area. As a result, a former part of the desert was transformed and is used for farming. Soil sampling at Al Zintan was conducted in 2017, across a 2×2 km grid. A total of 143 samples were collected from depths of about 30 cm. The samples weighed 2 to 2.5 kg and generally comprised sand with a clay component. A Niton Xl3t goldd+ instrument was used for chemical analyses, based on which GIS heavy-metal distribution maps were generated. The distribution of Cr, Ni, Cu and Zn is discussed on the paper.",
journal = "Geološki anali Balkanskoga poluostrva",
title = "Distribution of chromium, nickel, copper and zinc in the Al Zintan area, northwestern Libya",
number = "2",
volume = "79",
doi = "10.2298/GABP1802029A"
}

Alzarog, T. M., Vakanjac, B., Jelić, I., Ristić Vakanjac, V., Naunović, Z.,& Đorđević Milošević, S.. (2018). Distribution of chromium, nickel, copper and zinc in the Al Zintan area, northwestern Libya. in Geološki anali Balkanskoga poluostrva, 79(2).
https://doi.org/10.2298/GABP1802029A

Alzarog TM, Vakanjac B, Jelić I, Ristić Vakanjac V, Naunović Z, Đorđević Milošević S. Distribution of chromium, nickel, copper and zinc in the Al Zintan area, northwestern Libya. in Geološki anali Balkanskoga poluostrva. 2018;79(2).
doi:10.2298/GABP1802029A .

Alzarog, Taher Mohamed, Vakanjac, Boris, Jelić, Ivana, Ristić Vakanjac, Vesna, Naunović, Zorana, Đorđević Milošević, Suzana, "Distribution of chromium, nickel, copper and zinc in the Al Zintan area, northwestern Libya" in Geološki anali Balkanskoga poluostrva, 79, no. 2 (2018),
https://doi.org/10.2298/GABP1802029A . .

TY  - JOUR
AU  - Masod Abdulqader, Sanna
AU  - Vakanjac, Boris
AU  - Kovacević, Jovan
AU  - Naunović, Zorana
AU  - Zdjelarević, Nevena
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/952
AB  - Stara Planina (also known as the Balkan mountain range) is known for numerous occurrences and deposits of uranium and associated radionuclides. It is also famous for its geodiversity. The geologic framework is highly complex. The mountain is situated between the latitudes of 43 degrees and 44 degrees N and the longitudes from 22 degrees 16' to 23 degrees 00' E. Uranium exploration and radioactivity testing on Stara Planina began back in 1948. Uranium has also been mined in the zone of Kalna, within the Janja granite intrusive. The naturally radioactive geologic units of Stara Planina are presented in detail in this paper. The main sources of radioactivity on Stara Planina can be classified as: 1. Granitic endogenous-syngenetic-epigenetic deposits and occurrences; 2. Metamorphogenic-syngenetic; and 3. Sedimentary, including occurrences of uranium deposition and fluctuation caused by water in different types of sedimentary rocks formed in a continental setting, which could be classified under epigenetic types. The area of Stara Planina with increased radioactivity (higher than 200 cps), measured by airborne gamma spectrometry, is about 380 square kilometers. The highest values of measured radioactivity and uranium grade were obtained from a sample taken from the Mezdreja uranium mine tailing dump, where Ra-226 measures 2600 +/- 100 Bq/kg and the uranium grade is from 76.54 to 77.65 ppm U. The highest uranium (and lead) concentration, among all samples, is measured in graphitic schist with high concentrations of organic (graphitic) material from the Inovska Series-99.47 ppm U and 107.69 ppm Pb. Thorium related radioactivity is the highest in granite samples from the Janja granite in the vicinity of the Mezdreja granite mine and the Gabrovnica granite mine tailing dump, and it is the same-250 +/- 10 Bq/kg for Th-232, while the thorium grade varies from 30.82 to 60.27 ppm Th. In gray siltstones with a small amount of organic material, the highest radioactivity is related to potassium-2080 +/- 90 Bq/kg for K-40.
PB  - MDPI AG
T2  - Minerals
T1  - Natural Radioactivity of Intrusive-Metamorphic and Sedimentary Rocks of the Balkan Mountain Range (Serbia, Stara Planina)
IS  - 1
VL  - 8
DO  - 10.3390/min8010006
ER  - 

@article{
author = "Masod Abdulqader, Sanna and Vakanjac, Boris and Kovacević, Jovan and Naunović, Zorana and Zdjelarević, Nevena",
year = "2018",
abstract = "Stara Planina (also known as the Balkan mountain range) is known for numerous occurrences and deposits of uranium and associated radionuclides. It is also famous for its geodiversity. The geologic framework is highly complex. The mountain is situated between the latitudes of 43 degrees and 44 degrees N and the longitudes from 22 degrees 16' to 23 degrees 00' E. Uranium exploration and radioactivity testing on Stara Planina began back in 1948. Uranium has also been mined in the zone of Kalna, within the Janja granite intrusive. The naturally radioactive geologic units of Stara Planina are presented in detail in this paper. The main sources of radioactivity on Stara Planina can be classified as: 1. Granitic endogenous-syngenetic-epigenetic deposits and occurrences; 2. Metamorphogenic-syngenetic; and 3. Sedimentary, including occurrences of uranium deposition and fluctuation caused by water in different types of sedimentary rocks formed in a continental setting, which could be classified under epigenetic types. The area of Stara Planina with increased radioactivity (higher than 200 cps), measured by airborne gamma spectrometry, is about 380 square kilometers. The highest values of measured radioactivity and uranium grade were obtained from a sample taken from the Mezdreja uranium mine tailing dump, where Ra-226 measures 2600 +/- 100 Bq/kg and the uranium grade is from 76.54 to 77.65 ppm U. The highest uranium (and lead) concentration, among all samples, is measured in graphitic schist with high concentrations of organic (graphitic) material from the Inovska Series-99.47 ppm U and 107.69 ppm Pb. Thorium related radioactivity is the highest in granite samples from the Janja granite in the vicinity of the Mezdreja granite mine and the Gabrovnica granite mine tailing dump, and it is the same-250 +/- 10 Bq/kg for Th-232, while the thorium grade varies from 30.82 to 60.27 ppm Th. In gray siltstones with a small amount of organic material, the highest radioactivity is related to potassium-2080 +/- 90 Bq/kg for K-40.",
publisher = "MDPI AG",
journal = "Minerals",
title = "Natural Radioactivity of Intrusive-Metamorphic and Sedimentary Rocks of the Balkan Mountain Range (Serbia, Stara Planina)",
number = "1",
volume = "8",
doi = "10.3390/min8010006"
}

Masod Abdulqader, S., Vakanjac, B., Kovacević, J., Naunović, Z.,& Zdjelarević, N.. (2018). Natural Radioactivity of Intrusive-Metamorphic and Sedimentary Rocks of the Balkan Mountain Range (Serbia, Stara Planina). in Minerals
MDPI AG., 8(1).
https://doi.org/10.3390/min8010006

Masod Abdulqader S, Vakanjac B, Kovacević J, Naunović Z, Zdjelarević N. Natural Radioactivity of Intrusive-Metamorphic and Sedimentary Rocks of the Balkan Mountain Range (Serbia, Stara Planina). in Minerals. 2018;8(1).
doi:10.3390/min8010006 .

Masod Abdulqader, Sanna, Vakanjac, Boris, Kovacević, Jovan, Naunović, Zorana, Zdjelarević, Nevena, "Natural Radioactivity of Intrusive-Metamorphic and Sedimentary Rocks of the Balkan Mountain Range (Serbia, Stara Planina)" in Minerals, 8, no. 1 (2018),
https://doi.org/10.3390/min8010006 . .