Szczegóły publikacji
Opis bibliograficzny
The origin and evolution of waters in the Miocene formation of the Carpathian Foredeep / Marek HAJTO, Barbara ULIASZ-MISIAK, Bogumiła WINID // Applied Geochemistry ; ISSN 0883-2927 . — 2026 — vol. 198 art. no. 106680, s. 1–13. — Bibliogr. s. 12–13, Abstr. — Publikacja dostępna online od: 2026-01-08
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 165718 |
|---|---|
| Data dodania do BaDAP | 2026-02-20 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.apgeochem.2026.106680 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Applied Geochemistry |
Abstract
The autochthonous Miocene molasse sediments filling the Carpathian Foredeep (SE Poland) are rich in mineralised waters. This study aimed to determine the origin and hydrogeochemical evolution of these waters. The analysis of mineralisation, chemical composition, and selected hydrochemical indicators of groundwater was used to identify their genesis and the processes that influenced their composition over geological time. More than 2000 water analyses from Miocene formations were compiled and verified according to hydrogeochemical standards. The analysed parameters included TDS, chloride, sulphate, bicarbonate, sodium, calcium, magnesium, and bromide. Waters were grouped by depth and geographic location to assess spatial and vertical variability, and key ion ratios were calculated. Most of the waters occurring in Miocene formations are of the sodium–chloride type, typical of zones isolated from active circulation. Their mineralisation increases irregularly with depth. According to hydrochemical indicators, Miocene waters are primarily brines or chloride waters genetically related to seawater. However, variance in chemical composition indicates partial infiltration by meteoric waters. Waters at various depths may contain components of infiltration origin. Ion exchange and the dissolution or precipitation of carbonate and sulphate minerals were the main factors shaping water chemistry, alongside seawater evaporation and halite dissolution. Although groundwater chemistry does not differ significantly between the eastern and western parts of the basin, deeper horizons (below 1000 m b.g.l.) show greater variation. The complexity of processes affecting Miocene formation waters is reflected in the lack of clear correlations among parameters.
