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Hydrogeochemical conditions of submarine and terrestrial karst sulfur springs in the Northern Adriatic
ID
Šušmelj, Kaja
(
Author
),
ID
Čenčur Curk, Barbara
(
Author
),
ID
Kanduč, Tjaša
(
Author
),
ID
Rožič, Boštjan
(
Author
),
ID
Verbovšek, Timotej
(
Author
),
ID
Vreča, Polona
(
Author
),
ID
Žagar, Klara
(
Author
),
ID
Žvab Rožič, Petra
(
Author
)
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https://link.springer.com/article/10.1007/s12665-024-11476-7
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Abstract
Submarine springs near Izola, in the Northern Adriatic Sea, appear in funnel-shaped depressions and smell strongly of sulfur. Along the Mediterranean coast there are many submarine karst springs containing brackish or fresh water, but submarine sulfur springs are not particularly common. Three submarine sulfur springs and one terrestrial sulfur spring were investigated to better understand the water properties, water–rock interaction within the aquifer, and to explore the origin of the spring water. Groundwater and seawater samples were also collected for comparison. Based on the geological setting, physicochemical parameters, hydrogeochemical data, and stable isotope data (δ$^{18}$O, δ$^2$H, δ$^{13}$C$_{DIC}$, δ$^{34}$S$_{SO4}$, δ$^{18}$O$_{SO4}$), we can affirm that (1) the large concentration of seawater in the submarine springs samples is due to sampling challenges; (2) springs recharge from precipitation where confined karst aquifers outcrop; (3) deep water circulation is indicated; (4) redox conditions can provide a suitable environment for bacterial reduction of the marine or organic sulfate to the odorous H$_2$S; (5) geological data suggests that the coals beneath the alveolinic-nummulitic limestones are the source of sulfur. A multi-parameter and interdisciplinary approach has proven important in assessing submarine sulfur springs affected by seawater input.
Language:
English
Keywords:
terrestrial and submarine sulfur springs
,
karst groundwater
,
hydrogeochemistry
,
stable isotopes
,
Slovenia
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
NTF - Faculty of Natural Sciences and Engineering
Publication status:
Published
Publication version:
Version of Record
Year:
2024
Number of pages:
18 str.
Numbering:
Vol. 83, iss. 7, art. 214
PID:
20.500.12556/RUL-156152
UDC:
55
ISSN on article:
1866-6280
DOI:
10.1007/s12665-024-11476-7
COBISS.SI-ID:
190295043
Publication date in RUL:
10.05.2024
Views:
333
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72
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Record is a part of a journal
Title:
Environmental Earth sciences
Publisher:
Springer Nature
ISSN:
1866-6280
COBISS.SI-ID:
1683797
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Projects
Funder:
ARRS - Slovenian Research Agency
Project number:
J1-1712
Name:
Zapis okoljskih sprememb in človekovega vpliva v holocenskih sedimentih Tržaškega zaliva
Funder:
ARRS - Slovenian Research Agency
Project number:
J1-2477
Name:
Erozijski procesi na obalnih flišnih klifih z oceno tveganja
Funder:
ARRS - Slovenian Research Agency
Project number:
P1-0195
Name:
Geookolje in geomateriali
Funder:
ARRS - Slovenian Research Agency
Project number:
P1-0143
Name:
Kroženje snovi v okolju, snovna bilanca in modeliranje okoljskih procesov ter ocena tveganja
Funder:
ARRS - Slovenian Research Agency
Funding programme:
Young researchers
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