TY - JOUR

T1 - Radiocarbon dating of the natural groundwater in the Ob-Zaisan folded region (Russia)

AU - Pyryaev, A. N.

AU - Novikov, D. A.

AU - Petrozhitskiy, A. V.

AU - Kuleshov, D. V.

PY - 2024/9/10

Y1 - 2024/9/10

N2 - Groundwater in the Ob-Zaisan folded region (Russia) has significant differences in the stable isotope composition of oxygen and hydrogen, which cannot be explained by the geographical and relief features of the region. A probable reason for these differences could be climatic changes in the study area over the past tens of thousands of years. The method of the radiocarbon dating can be perfectly suited in order to determine such small geological ages. The dating of waters using 14C data gives an understanding of their residence time. It will make it possible to differentiate periods of recharge and accumulation of water in aquifers and track the changes of the water stable isotope composition over time. The estimated water age ranges from 650 to 19,000 years. The enrichment of δD and δ18O values with the decreasing of the water age indicates a gradual warming of the Novosibirsk region climate. These results logically complement the meteorological observations over the last century and may be useful for paleoclimate reconstructions of the region.

AB - Groundwater in the Ob-Zaisan folded region (Russia) has significant differences in the stable isotope composition of oxygen and hydrogen, which cannot be explained by the geographical and relief features of the region. A probable reason for these differences could be climatic changes in the study area over the past tens of thousands of years. The method of the radiocarbon dating can be perfectly suited in order to determine such small geological ages. The dating of waters using 14C data gives an understanding of their residence time. It will make it possible to differentiate periods of recharge and accumulation of water in aquifers and track the changes of the water stable isotope composition over time. The estimated water age ranges from 650 to 19,000 years. The enrichment of δD and δ18O values with the decreasing of the water age indicates a gradual warming of the Novosibirsk region climate. These results logically complement the meteorological observations over the last century and may be useful for paleoclimate reconstructions of the region.

KW - C

KW - Groundwater

KW - O

KW - Radiocarbon 14C dating

KW - Stable isotopes H

KW - Western Siberia

UR - https://www.mendeley.com/catalogue/a523f350-ae4c-38b2-a4ca-06722f89248f/

U2 - 10.1016/j.gsd.2024.101335

DO - 10.1016/j.gsd.2024.101335

M3 - Article

VL - 27

JO - Groundwater for Sustainable Development

JF - Groundwater for Sustainable Development

SN - 2352-801X

ER -