- Tytuł:
- Calibrated geochemical ages of the Baltic Artesian Basin groundwater
- Autorzy:
-
Samalavičius, Vytautas
Arustienė, Jurga - Powiązania:
- https://bibliotekanauki.pl/articles/2204366.pdf
- Data publikacji:
- 2022
- Wydawca:
- Uniwersytet im. Adama Mickiewicza w Poznaniu
- Tematy:
-
groundwater dating
isotope geochemistry
radiocarbon
radiokrypton
datowanie wód podziemnych
geochemia izotopowa
radiowęgiel - Opis:
- For the present study, geochemical ages were derived from radiocarbon and radiokrypton age calibration with ground-water chemical contents (Na+, K+, Mg2+, Ca2+, Cl−, SO42−, HCO3−). Geochemical ages may fill the dating gap (40–150 ka) between the isotope techniques mentioned. A case study of groundwater in the Baltic Artesian Basin has involved geochemical age calibration, data filtering (such as regional subdivision of the basin for more accurate results) and geochemical dating of groundwater of unknown age. Various approaches to interpretations of geochemical age results could be used. Bicarbonate and sulphate are sensitive to the hydrochemical environment and should be omitted from geochemical age calculations. Modern fresh groundwater samples should also be excluded from calibration in order to obtain more reliable trend lines. Calcium-sodium cation exchange occurs in deep aquifers and may be used for geo- chemical age determination of fossil groundwater.
- Źródło:
-
Geologos; 2022, 28, 3; 179--189
1426-8981
2080-6574 - Pojawia się w:
- Geologos
- Dostawca treści:
- Biblioteka Nauki
Artykuł