ǂa ǂcase study of the Žvepovnik spring in NE Slovenia
Petra Žvab Rožič (Avtor), Teja Polenšek (Avtor), Timotej Verbovšek (Avtor), Tjaša Kanduč (Avtor), Janez Mulec (Avtor), Polona Vreča (Avtor), Ljudmila Strahovnik (Avtor), Boštjan Rožič (Avtor)

Povzetek

We present an integrated approach to characterizing the Žvepovnik sulphur spring, comprising detailed basic geological (mapping), geochemical (physico-chemical, elementary), isotopic (δ$^2$H, δ$^{18}$O, δ$^{13}$C$_{DIC}$, δ$^{34}$S and $^3$H), and microbiological analyses. We used a multi-parameter approach to determine the origin of the water (meteoric or deeper infiltration), the origin of the carbon and sulphur, and water retention times. Our special research interest is the origin of the sulphur, as sulphur springs are rare and insufficiently investigated. Our results show that the Žvepovnik spring occurs along the fault near the contact between the dolomite aquifer and overlying shales and volcanoclastic beds. The spring water is the result of the mixing of (1) deeper waters in contact with gypsum and anhydrite and (2) shallow waters originating from precipitation and flowing through the surface carbonate aquifer. The results of δ$^2$H and δ$^{18}$O confirm local modern precipitation as the main source of the spring. δ$^{13}$C$_{DIC}$ originates from the degradation of organic matter and the dissolution of carbonates. We therefore propose four possible sources of sulphur: (1) the most probable is the dissolution of gypsum/anhydrite; (2) barite may be a minor source of sulphur; (3) the microbial dissimilatory sulfate reduction; and (4) the oxidation of pyrite as the least probable option.

Ključne besede

sulphur spring;karst groundwater;hydrogeochemistry;isotopes;Slovenia;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL NTF - Naravoslovnotehniška fakulteta
UDK: 55
COBISS: 104888067 Povezava se bo odprla v novem oknu
ISSN: 2073-4441
Št. ogledov: 19
Št. prenosov: 4
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-21
Letnik: ǂVol. ǂ14
Zvezek: ǂiss. ǂ8
Čas izdaje: 2022
DOI: 10.3390/w14081249
ID: 18594391