Znaczniki środowiskowe w wodach termalnych niecki podhalańskiej
Abstract
Environmental tracers in thermal waters of Podhale Basin.
A b s t r a c t. Tritium and stable isotope data (δ18O and δ2H) for wells near the recharge area of the thermal system of the Podhale Basin indicate the presence of modern waters recharged at the lowest altitudes of the outcrops of water bearing formations. In turn, δ18O and δ2H values obtained for deep part of the basin may be interpreted as either the result of a high altitude recharge or a cold climate. Helium contents are in general unusually high but can not be interpreted quantitatively at the present stage of the study. The noble gas temperatures (NGT) values obtained from Ne and Ar data disagree with temperatures deduced from the known dependence of air temperature on altitude and altitudes of recharge areas found from the stable isotope data. High concentrations ofHe (ca. 10-4 cm3STP/g), and low NGTdeduced from Ne and Ar concentrations suggest the presence of pre-Holocene water in the northeastern part of the basin, which means slow movement of water. Stable isotope and 14C data indicate the presence of much younger Holocene waters in the western part of the basin
A b s t r a c t. Tritium and stable isotope data (δ18O and δ2H) for wells near the recharge area of the thermal system of the Podhale Basin indicate the presence of modern waters recharged at the lowest altitudes of the outcrops of water bearing formations. In turn, δ18O and δ2H values obtained for deep part of the basin may be interpreted as either the result of a high altitude recharge or a cold climate. Helium contents are in general unusually high but can not be interpreted quantitatively at the present stage of the study. The noble gas temperatures (NGT) values obtained from Ne and Ar data disagree with temperatures deduced from the known dependence of air temperature on altitude and altitudes of recharge areas found from the stable isotope data. High concentrations ofHe (ca. 10-4 cm3STP/g), and low NGTdeduced from Ne and Ar concentrations suggest the presence of pre-Holocene water in the northeastern part of the basin, which means slow movement of water. Stable isotope and 14C data indicate the presence of much younger Holocene waters in the western part of the basin