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Názov Chemical and mineralogical composition of fluvial sediments (Bistrita River, Romania): Geogenic vs. anthropogenic input into rivers on its way through mining areas Aut.údaje Andreea Elena Maftei, Harald G. Dill ... [et al.] Autor Maftei Andreea Elena (20%)
Spoluautori Dill Harald G. (20%)
Buzatu Andrei (15%)
Iancu Ovidiu Gabriel (15%)
Buzgar Nicolae (15%)
Andráš Peter 1953- (15%) UMBFP04 - Katedra životného prostredia
Zdroj.dok. Geochemistry : Interdisciplinary Journal for Chemical Topics of the Geosciences. Vol. 78, no. 3 (2018), pp. 385-395. - Mníchov : Elsevier GmbH, 2018 Kľúč.slová sedimenty - sediments composition geochémia - geochemistry Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Holandsko Systematika 502 Anotácia The upper reaches of the Bistrita drainage system were selected as a natural test site to determine the geogenic and anthropogenic input into fluvio-lacustrine systems in humid mid-latitude morphoclimatic zones. The reason for this selection lies in the complex geology and its metallogenic evolution leading to a great variety of Fe, Mn, U, and polymetallic sulfides ore deposits. It sparked an intense mining activity during the past centuries with a strong impact on the drainage system similar to many mineralized sites in the world which are still under exploitation. Sediment samples from Bistrita River were analyzed by means of X-ray fluorescence spectrometry (XRF), X-ray diffraction (XRD), near-infrared (NIR) and micro-Raman spectroscopy (μ-Raman). Our results revealed that the chemical and mineralogical built-up of the stream sediments is mainly geogenic, with most of the trace elements accumulated in the river sediments derived from the source rocks exposed in catchment area of the River Bistrita. A strong input by man has been detected in the drainage system near abandoned mining sites. The trace elements are mainly accommodated in the structure of detrital minerals representative of the clastic aureole around the source rocks, and to a lesser extent adsorbed onto the surface of clay minerals. The REE incorporated into muscovite furnish evidence of having derived from the source rocks, prevalently mica schists exposed by supergene processes in the provenance area and rule out a neoformation of clay minerals on transport and deposition URL Link na plný text Kategória publikačnej činnosti ADC Číslo archívnej kópie 44459 Kategória ohlasu RAMOS-VAZQUEZ, Mayla A. - ARMSTRONG-ALTRIN, John S. Sediment chemistry and detrital zircon record in the Bosque and Paseo del Mar coastal areas from the southwestern Gulf of Mexico. In Marine and petroleum geology. ISSN 0264-8172, 2019, vol. 110, pp. 650-675.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika 
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Názov Structural key features of bismuth and Sb-As sulfosalts from hydrothermal deposits-micro-Raman spectrometry Aut.údaje Andrei Buzatu ... [et al.] Autor Buzatu Andrei (20%)
Spoluautori Damian Gheorghe (20%)
Buzgar Nicolae (15%)
Andráš Peter 1953- (15%) UMBFP04 - Katedra životného prostredia
Apopei Andrei Ionut (10%)
Maftei Andreea Elena (10%)
Milovská Stanislava (10%)
Zdroj.dok. Vibrational spectroscopy. Vol. 89 (2017), pp. 49-56. - Amsterdam : Elsevier B.V., 2017 Kľúč.slová mineralógia - mineralogy spectrometry bismuth sulfosalts Jazyk dok. angličtina Krajina Holandsko Systematika 54 Anotácia The sulfosalt minerals are of great importance for a better understanding of ore forming conditions and mineralization distribution, especially in the case of hydrothermal deposits. So far, few Raman studies were conducted on this type of minerals. In the present work, were studied several samples from Baia Sprie ore deposit, Romania a worldwide classic example for hydrothermal mineralizations. Bismuthinite, lillianite-gustavite, heyrovskyite, cosalite, tetrahedrite-tennantite, bournonite and semseyite have been analyzed using electron microprobe and Raman spectrometry. The Raman spectra of bismuth sulfosalts, Ag-rich tetrahedrite and semseyite are discussed for the first time. The Bi sulfosalts show typical nu(1) symmetric stretching modes of the MS6 octahedra at 286-279 cm(-1), nu(2) stretching at 216-207 cm(-1) and vs bending modes at 140-112 cm(-1). The transition from tetrahedrite to tennantite is very clearly observed in the Raman spectra. Several changes are marked through the solid solution, as the Sb As isomorphic substitution takes place. Therefore, as the composition changes from As-member (tennantite) to the Sb-member (tetrahedrite), a shifting trend is observed in the Raman spectra, especially for the fundamental modes. The spectra of bournonite are dominated by two very strong lines at 325 and 296 cm(-1). The Raman band at 331 cm(-1) in semseyite is assigned to nu(1) symmetric stretching modes of the octahedra. The nu(2) stretching is observed at 212 cm(-1), while the bending mode vs appears at 148-143 cm(-1). (C) 2017 Elsevier B.V. All rights reserved. URL Link do databázy WoS Kategória publikačnej činnosti ADC Číslo archívnej kópie 39313 Kategória ohlasu NAGLIK, Beata - DUMANSKA-SLOWIK, Magdalena - TOBOLA, Tomasz - DERKOWSKI, Pawel - HABRYN, Ryszard - MARKOWIAK, Marek. Diversity of pyrite-hosted solid inclusions and their metallogenic implications - a case study from the Myszkow Mo-Cu-W porphyry deposit (the Krakow-Lubliniec fault zone, Poland). In Minerals. ISSN 2075-163X, 2021, vol. 11, no. 12, pp. 1-18.
YAROSLAVZEV, Alexey A. - KUZNETSOV, Alexey N. - DUDKA, Alexander P. - MIRONOV, Andrei - BUGA, Sergey G. - DENISOV, Vladimir V. Laves polyhedra in synthetic tennantite, Cu12As4S13, and its lattice dynamics. In Journal of solid state chemistry. ISSN 0022-4596, 2021, vol. 297, art. no. 122061, pp. 1-7.
ALQAHTANI, Tahani - KHAN, Malik Dilshad - LEWIS, David J. - ZHONG, Xiang Li - O'BRIEN, Paul. Scalable synthesis of Cu-Sb-S phases from reactive melts of metal xanthates and effect of cationic manipulation on structural and optical properties. In Scientific reports. ISSN 2045-2322, 2021, vol. 11, no. 1, pp. 1-17.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika nerozpoznaný