Using 81Kr and noble gases to characterize and date groundwater and brines in the Baltic Artesian Basin on the one-million-year timescale C Gerber, R Vaikmäe, W Aeschbach, A Babre, W Jiang, M Leuenberger, ...
Geochimica et Cosmochimica Acta 205, 187-210, 2017
75 2017 Recent seawater intrusion into deep aquifer determined by the radioactive noble-gas isotopes 81Kr and 39Ar Y Yechieli, R Yokochi, M Zilberbrand, ZT Lu, R Purtschert, J Sueltenfuss, ...
Earth and planetary science letters 507, 21-29, 2019
36 2019 Radiokrypton unveils dual moisture sources of a deep desert aquifer R Yokochi, R Ram, JC Zappala, W Jiang, E Adar, R Bernier, A Burg, ...
Proceedings of the National Academy of Sciences 116 (33), 16222-16227, 2019
32 2019 The circulation of the Dead Sea brine in the regional aquifer N Weber, Y Yechieli, M Stein, R Yokochi, I Gavrieli, J Zappala, P Mueller, ...
Earth and Planetary Science Letters 493, 242-261, 2018
22 2018 Underground production of 81Kr detected in subsurface fluids R Purtschert, R Yokochi, W Jiang, ZT Lu, P Mueller, J Zappala, ...
Geochimica et cosmochimica acta 295, 65-79, 2021
19 2021 Krypton-81 dating of the deep Continental Intercalaire aquifer with implications for chlorine-36 dating T Matsumoto, K Zouari, R Trabelsi, D Hillegonds, W Jiang, ZT Lu, ...
Earth and Planetary Science Letters 535, 116120, 2020
19 2020 Krypton-81 dating of the deep Continental Intercalaire aquifer with implications for chlorine-36 dating T Matsumoto, K Zouari, R Trabelsi, D Hillegonds, W Jiang, ZT Lu, ...
Earth and Planetary Science Letters 535, 116120, 2020
19 2020 Atmospheric 81 Kr as an Integrator of Cosmic‐Ray Flux on the Hundred‐Thousand‐Year Time Scale JC Zappala, D Baggenstos, C Gerber, W Jiang, BM Kennedy, ZT Lu, ...
Geophysical Research Letters 47 (3), e2019GL086381, 2020
19 2020 Measurement of the Hyperfine Quenching Rate of the Clock Transition in CY Xu, J Singh, JC Zappala, KG Bailey, MR Dietrich, JP Greene, W Jiang, ...
Physical Review Letters 113 (3), 033003, 2014
17 2014 Rapid processing of 85 Kr/Kr ratios using Atom Trap Trace Analysis JC Zappala, K Bailey, P Mueller, TP O'Connor, R Purtschert
Water Resources Research 53 (3), 2553-2558, 2017
15 2017 Field degassing as a new sampling method for 14C analyses in old groundwater R Yokochi, R Bernier, R Purtschert, JC Zappala, Y Yechieli, E Adar, ...
Radiocarbon 60 (1), 349-366, 2018
14 2018 Groundwater residence time estimates obscured by anthropogenic carbonate AM Seltzer, DV Bekaert, PH Barry, KE Durkin, EK Mace, CE Aalseth, ...
Science Advances 7 (17), eabf3503, 2021
12 2021 Identifying recharge processes into a vast “fossil” aquifer based on dynamic groundwater 81Kr age evolution R Ram, A Burg, JC Zappala, R Yokochi, Y Yechieli, R Purtschert, W Jiang, ...
Journal of hydrology 587, 124946, 2020
12 2020 Stellar M Tessler, J Zappala, S Cristallo, L Roberti, M Paul, S Halfon, T Heftrich, ...
Physical Review C 104 (1), 015806, 2021
9 2021 Controls on the 36Cl/Cl input ratio of paleo-groundwater in arid environments: New evidence from 81Kr/Kr data R Ram, R Purtschert, EM Adar, M Bishof, W Jiang, ZT Lu, P Mueller, A Sy, ...
Science of the Total Environment 762, 144106, 2021
9 2021 Setting a limit on anthropogenic sources of atmospheric 81Kr through Atom Trap Trace Analysis JC Zappala, K Bailey, W Jiang, B Micklich, P Mueller, TP O’Connor, ...
Chemical geology 453, 66-71, 2017
9 2017 High-resolution spectroscopy of neutral Yb atoms in a solid Ne matrix R Lambo, CY Xu, ST Pratt, H Xu, JC Zappala, KG Bailey, ZT Lu, P Mueller, ...
Physical Review A 104 (6), 062809, 2021
8 2021 81 Kr/85 Kr-Dating of thermal groundwaters in the Upper Jurassic (Molasse Basin)M Heidinger, F Eichinger, R Purtschert, P Mueller, J Zappala, G Wirsing, ...
Grundwasser 24, 287-294, 2019
6 2019 Atom trap trace analysis: Developments & applications JC Zappala
The University of Chicago, 2017
5 2017 Origin of water masses in Floridan Aquifer System revealed by 81Kr R Yokochi, JC Zappala, R Purtschert, P Mueller
Earth and Planetary Science Letters 569, 117060, 2021
4 2021 