Please use this identifier to cite or link to this item: https://biore.bio.bg.ac.rs/handle/123456789/1881
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dc.contributor.authorŠaraba, Vladimiren_US
dc.contributor.authorPopović, Slađanaen_US
dc.contributor.authorObradović, Vesnaen_US
dc.contributor.authorŠtrbački, Janaen_US
dc.contributor.authorGajić, Violetaen_US
dc.contributor.authorVulić, Predragen_US
dc.contributor.authorSubakov-Simić, Gordanaen_US
dc.contributor.authorKrunić, Oliveraen_US
dc.date.accessioned2019-10-17T10:17:11Z-
dc.date.available2019-10-17T10:17:11Z-
dc.date.issued2019-
dc.identifier.issn1330-030X-
dc.identifier.urihttps://biore.bio.bg.ac.rs/handle/123456789/1881-
dc.description.abstractInvestigations focusing on wellhead encrustations within select zones of emergence of mineral water, in different hydrogeological provinces, were conducted from 2014 to 2017 in Serbia. They included: Well BB-1 in Bogatić (Inner Dinaric Alps of western Serbia), wells LB-4 and LB-5 in Lukovska Banja (Šumadija-Kopaonik-Kosovo Province), and wells VG-2 and VG-3 in Vranjska Banja (Serbian Crystalline Core). The studied occurrences belong to the group of hot mineral waters, with temperatures ranging from 62°C to 93.9°C, and total dissolved solids (TDS) from 600 to 1267 mg/L. They are mildly acidic to mildly alkaline (pH 6.6 – 8.0) and their genetic types are HCO3 --Na++K+ (Bogatić and Lukovska Banja) and SO4 2-, HCO3 --Na++K+ (Vranjska Banja). Macroscopic, optical and diffraction assessment revealed that the encrustations comprised calcite and aragonite minerals, along with some local quartz, muscovite, albite and clinochlore. The conclusion was that there was a predominant presence of calcium carbonate in all the occurrences, represented by crystalline calcite grains, characteristically birefractive, and dark, semitranslucent grains in the form of microcrystalline calcite highly stained by iron hydroxides (Bogatić), as well as crystalline calcite with radially developed carbonate - aragonite (Lukovska Banja) and rod-like and filamentous aggregates of aragonite and calcite, highly translucent in places (Vranjska Banja).The texture of the samples exhibits alternating horizontal or wavy carbonate laminae. In Vranjska Banja, they include thin micritic to medium crystalline laminae and laminae composed of aggregates of aragonite needles in the form of bunch. In Bogatić and Lukovska Banja, there are thick micritic and highly porous laminae, 0.025 to 1 mm thick, or interlayers of a coarser crystalline structure. Apart from encrustations, all the occurrences exhibit phototrophic microbial mats, which were analyzed by scanning electron microscopy. The onset and progress of encrustation are primarily influenced by the physical and chemical composition of the mineral water (T, pH, TDS, HCO3 -, Ca2+, CO2, etc.), as corroborated by hydrogeochemical modeling software PHREEQC 3.4.0. In addition, phototrophic biofilms might be contributing to the creation and accumulation of minerals in the encrustations.en_US
dc.language.isoenen_US
dc.relation.ispartofGeologia Croaticaen_US
dc.subjectEncrustationsen_US
dc.subjectHydrogeochemical modelingen_US
dc.subjectMacroscopic and optical assessmenten_US
dc.subjectMineral wateren_US
dc.subjectPhototrophic microbial matsen_US
dc.subjectSEM analysesen_US
dc.subjectX-ray powder diffractionen_US
dc.titleMacroscopic, optical and diffraction assessment of encrustations and sem analyses of phototrophic microbial mats from wellheads and select zones of emergence of mineral water in Serbiaen_US
dc.typeArticleen_US
dc.identifier.doi10.4154/gc.2019.09-
dc.identifier.scopus2-s2.0-85069641426-
dc.identifier.urlhttps://api.elsevier.com/content/abstract/scopus_id/85069641426-
dc.description.rankM22en_US
dc.description.impact1.290en_US
item.languageiso639-1en-
item.cerifentitytypePublications-
item.openairetypeArticle-
item.fulltextNo Fulltext-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
crisitem.author.deptChair of Algology, Mycology and Lichenology-
crisitem.author.orcid0000-0001-7112-5853-
crisitem.author.orcid0000-0002-0500-7354-
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