Dating very old groundwaters in the thermal aquifers of the province of Buenos Aires, Argentina, through 14C and noble gases measurements.

DANIEL EMILIO MARTINEZ; TAKUYA MATSUMOTO; ORLANDO MAURICIO QUIROZ LONDOÑO; R. ALBOUY, C. LEXOW, ; DAPEÑA CRISTINA; MERIDA LUIS

Viena

Simposio; International Symposium on Isotope Hydrology. Advancing the Understanding of water cycle processes; 2019

OIEA

Deep confined aquifers of Tertiary age in sedimentary basins of the province of Buenos Aires are studied for groundwater age dating. Carbon-14 dating and noble gases isotopes determinations were applied. Most of the waters are over 30 ky, and probably over the radiocarbon dating application. Helium-4 contents indicate very old groundwater ages.