Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
Origin of high 234U/238U ratio in post-permafrost aquifers. / Tokarev, I.V.; Zubkov, A.A.; Rumynin, V.G.; Polyakov, V.A.; Kuznetsov, V.Yu.; Maksimov, F.E.
Uranium in the Environment: Mining Impact and Consequences. ed. / Broder J. Merkel; Andrea Hasche-Berger. Berlin, Heidelberg : Springer Nature, 2006. p. 847-856.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
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TY - GEN
T1 - Origin of high 234U/238U ratio in post-permafrost aquifers
AU - Tokarev, I.V.
AU - Zubkov, A.A.
AU - Rumynin, V.G.
AU - Polyakov, V.A.
AU - Kuznetsov, V.Yu.
AU - Maksimov, F.E.
PY - 2006/1/1
Y1 - 2006/1/1
N2 - Isotope composition and concentration (δ2H, δ18O, 234U/238U, Ar, 40Ar/ 36Ar, 3He/4He and 20Ne/ 4He) were measured in the ground waters (Tomsk-7). Water has a distinct cold climate isotope signature δ2H = -127..-140, δ18O = -17.0.. -18.2 in contrast of modern meteoric water δ2H = -117, δ18O = -15.9. Stable isotopes are in concord with noble gas temperature tNGT = 0..+4 °C and helium model ages t = 7-14 ka. Disequilibrium uranium 234U/238U up to 16 (activity ratio) obtained and explained of 234U leaching by the melt water during the permafrost degradation.
AB - Isotope composition and concentration (δ2H, δ18O, 234U/238U, Ar, 40Ar/ 36Ar, 3He/4He and 20Ne/ 4He) were measured in the ground waters (Tomsk-7). Water has a distinct cold climate isotope signature δ2H = -127..-140, δ18O = -17.0.. -18.2 in contrast of modern meteoric water δ2H = -117, δ18O = -15.9. Stable isotopes are in concord with noble gas temperature tNGT = 0..+4 °C and helium model ages t = 7-14 ka. Disequilibrium uranium 234U/238U up to 16 (activity ratio) obtained and explained of 234U leaching by the melt water during the permafrost degradation.
UR - http://www.scopus.com/inward/record.url?scp=84896593290&partnerID=8YFLogxK
U2 - 10.1007/3-540-28367-6_88
DO - 10.1007/3-540-28367-6_88
M3 - Conference contribution
SN - 978-3-540-28363-8
SN - 978-3-662-51793-2
SP - 847
EP - 856
BT - Uranium in the Environment
A2 - Merkel, Broder J.
A2 - Hasche-Berger, Andrea
PB - Springer Nature
CY - Berlin, Heidelberg
T2 - 4th International conference on Uranium Mining and Hydrogeology, UMH 2005
Y2 - 1 September 2005 through 1 September 2005
ER -
ID: 4629567