Next Article in Journal
Cross the Border: Participative Integrated Approach to Sustainable Tourism Planning
Previous Article in Journal
Geochemical Signatures of Paleoclimate Changes in the Sediment Cores from the Gloria and Snorri Drifts (Northwest Atlantic) over the Holocene-Mid Pleistocene
Previous Article in Special Issue
Key Factors of Precipitation Stable Isotope Fractionation in Central-Eastern Africa and Central Mediterranean
Open AccessArticle

The Origin of Dissolved Sulphate in the Thermal Waters of Budapest Inferred from Stable S and O Isotopes

1
Institute for Geological and Geochemical Research, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, H-1112 Budapest, Hungary
2
Department of Physical and Applied Geology, Eötvös Loránd University, H-1053 Budapest, Hungary
3
GWIS (Ground Water Isotope Studies) Ltd., H-8200 Veszprém, Hungary
4
Institute of Physics, M. Curie-Skłodowska University, 20-031 Lublin, Poland
5
Retired Hydrogeologist, Budapest, Hungary
*
Author to whom correspondence should be addressed.
Passed away.
Geosciences 2019, 9(10), 433; https://doi.org/10.3390/geosciences9100433
Received: 16 August 2019 / Revised: 21 September 2019 / Accepted: 23 September 2019 / Published: 8 October 2019
(This article belongs to the Special Issue Isotope Geochemistry of Meteoric Waters)
The thermal waters produced by wells and springs from the Buda Thermal Karst in Budapest and its surroundings are rich in dissolved sulphate. Radiocarbon ages indicate that waters of T >45 ℃ were infiltrated during the Ice Age (more than 11 thousand years ago), on the higher elevations of the Buda-Pilis Hills, whereas waters of lower temperatures were infiltrated during the Holocene. For the origin of dissolved sulphate, two hypotheses can be set up: (1) the dissolved sulphate originates from the oxidation of the sulphide (pyrite) of Oligocene Clay Formation; (2) it is the dissolution product of the sulphate minerals (gypsum and anhydrite) of older carbonaceous rocks (limestone and dolomite). The isotopically stable sulphur composition of the dissolved sulphate in the thermal water (δ34S = 9.7‰ to 17.7‰) indicates its marine origin, so likely it dissolved from the older Permian evaporites. View Full-Text
Keywords: Buda Thermal Karst; thermal water; origin of dissolved sulphate; stable isotopes; geothermometry Buda Thermal Karst; thermal water; origin of dissolved sulphate; stable isotopes; geothermometry
Show Figures

Figure 1

MDPI and ACS Style

Fórizs, I.; Szabó, V.R.; Deák, J.; Hałas, S.; Pelc, A.; Trembaczowski, A.; Lorberer, Á. The Origin of Dissolved Sulphate in the Thermal Waters of Budapest Inferred from Stable S and O Isotopes. Geosciences 2019, 9, 433.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop