| Carrizo Sand aquifer (Medina, Frio and Atascosa counties) United States | 0.82 ± 0.18 | 0.52 / 1.16 | 19 | outcrop-regime water (solid circles of Fig. 2) | Cowart et Osmond (1977), Uranium isotopes in groundwater: Their use in prospecting for sa… |
| Carrizo Sand aquifer (Medina, Frio and Atascosa counties) United States | 1.14 ± 0.29 | 0.69 / 1.75 | 14 | transition-zone water (triangles of Fig. 2) | Cowart et Osmond (1977), Uranium isotopes in groundwater: Their use in prospecting for sa… |
| Carrizo Sand aquifer (Medina, Frio and Atascosa counties) United States | 4.9 ± 2.38 | 1.41 / 9.02 | 14 | downdip-regime water (open circles of Fig. 2) | Cowart et Osmond (1977), Uranium isotopes in groundwater: Their use in prospecting for sa… |
| Smith Ranch-Highland mine unit MU4a groundwater United States | 5.45 ± 0.15 | 5.12 / 5.61 | 9 | groundwater up-gradient of the orebody (dissolved uranium) | Brown et al. (2016), Isotopic evidence for reductive immobilization of uranium across a r… |
| Smith Ranch-Highland mine unit MU4a groundwater United States | 5.15 ± 0.81 | 4.57 / 5.722 | 2 | groundwater of wells adjacent to mine unit MU4a (dissolved uranium) | Brown et al. (2016), Isotopic evidence for reductive immobilization of uranium across a r… |
| Smith Ranch-Highland mine unit MU4a groundwater United States | 3.31 ± 0.4 | 2.9 / 3.709 | 5 | groundwater down-gradient of the orebody, reduced wells (dissolved uranium) | Brown et al. (2016), Isotopic evidence for reductive immobilization of uranium across a r… |
| Smith Ranch-Highland mine unit MU4a groundwater United States | 2.79 ± 0.64 | 2.34 / 3.25 | 2 | groundwater down-gradient of the orebody, wells M452 and M458 (dissolved uranium) | Brown et al. (2016), Isotopic evidence for reductive immobilization of uranium across a r… |
| Smith Ranch-Highland mine unit MU4a groundwater United States | 1.04 ± 0.1 | 0.97 / 1.11 | 2 | ore-zone groundwater after mining (dissolved uranium) | Brown et al. (2016), Isotopic evidence for reductive immobilization of uranium across a r… |
| Highland sands groundwater around the orebody (1970s) United States | 1.36 ± 0.05 | | 1 | updip water | Cowart et Osmond (1977), Uranium isotopes in groundwater: Their use in prospecting for sa… |
| Highland sands groundwater around the orebody (1970s) United States | 4.35 ± 0.6 | 3.34 / 4.88 | 5 | water at the orebody | Cowart et Osmond (1977), Uranium isotopes in groundwater: Their use in prospecting for sa… |
| Highland sands groundwater around the orebody (1970s) United States | 5.73 ± 0.95 | | 1 | water about 5 km downdip of the orebody | Cowart et Osmond (1977), Uranium isotopes in groundwater: Their use in prospecting for sa… |
| Karnes County uranium district groundwater (1970s) United States | 2.51 ± 0.61 | 1.88 / 3.31 | 4 | district groundwater | Cowart et Osmond (1977), Uranium isotopes in groundwater: Their use in prospecting for sa… |
| Shirley Basin deposit groundwater (1970s) United States | 5.04 ± 0.85 | | 1 | mine water, below the ore zone | Cowart et Osmond (1977), Uranium isotopes in groundwater: Their use in prospecting for sa… |
| Shirley Basin deposit groundwater (1970s) United States | 1.37 ± 0.05 | | 1 | townsite well water, about 3 km from the mine | Cowart et Osmond (1977), Uranium isotopes in groundwater: Their use in prospecting for sa… |
| Nubian Sandstone aquifer at Bahariya Oasis Égypte | 1.87 ± 0.56 | 1.48 / 2.8 | 5 | groundwater from El Gidida mine wells (500 to 1117 m) | Dabous (2002), Uranium isotopic evidence for the origin of the Bahariya iron deposits, Eg… |
| Nubian Sandstone aquifer at Bahariya Oasis Égypte | 1.81 ± 0.54 | 1.14 / 3.01 | 15 | groundwater from other wells and springs of the oasis (0 to 1100 m) | Dabous (2002), Uranium isotopic evidence for the origin of the Bahariya iron deposits, Eg… |
| Groundwater of the Kingsville Dome uranium deposit (baseline and monitoring wells) United States | 0.92 ± 0.02 | | 1 | water of well BL11 (area KPA1, ore zone, ore extracted, restoration completed) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Kingsville Dome uranium deposit (baseline and monitoring wells) United States | 0.87 ± 0.02 | | 1 | water of well BLEK2 (area KPA1, ore zone, ore extracted, restoration completed) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Kingsville Dome uranium deposit (baseline and monitoring wells) United States | 0.92 ± 0.02 | | 1 | water of well BL1240 (area KPA2, ore zone, ore extracted, restoration completed) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Kingsville Dome uranium deposit (baseline and monitoring wells) United States | 0.82 ± 0.02 | | 1 | water of well BL8505 (area KPA3, ore zone, ore extracted, restoration completed) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Kingsville Dome uranium deposit (baseline and monitoring wells) United States | 1.02 ± 0.02 | | 1 | water of well MW85b (area KPA3, oxidising zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Kingsville Dome uranium deposit (baseline and monitoring wells) United States | 1.49 ± 0.02 | | 1 | water of well MW17 (area KPA1, oxidising zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Kingsville Dome uranium deposit (baseline and monitoring wells) United States | 1.3 ± 0.03 | | 1 | water of well MW40 (area KPA2, reducing zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Kingsville Dome uranium deposit (baseline and monitoring wells) United States | 1.01 ± 0.02 | | 1 | water of well MW43 (area KPA2, reducing zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Kingsville Dome uranium deposit (baseline and monitoring wells) United States | 0.94 ± 0.02 | | 1 | water of well MW15 (area KPA1, oxidising zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Kingsville Dome uranium deposit (baseline and monitoring wells) United States | 0.86 ± 0.05 | | 1 | water of well MW79 (area KPA3, reducing zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Kingsville Dome uranium deposit (baseline and monitoring wells) United States | 1 ± 0.04 | | 1 | water of well MW21 (area KPA1, oxidising zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 0.83 ± 0.01 | | 1 | water of well BL7 (area RPA1, ore zone, ore extracted, restoration completed) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 0.85 ± 0.01 | | 1 | water of well BL10 (area RPA2b, ore zone, ore extracted, restoration completed) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 0.83 ± 0.01 | | 1 | water of well BL22 (area RPA2a, ore zone, ore extracted, restoration completed) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 0.84 ± 0.02 | | 1 | water of well BL28 (area RPA3, ore zone, ore extracted, restoration not yet undertaken) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 0.81 ± 0.02 | | 1 | water of well BL29 (area RPA3, ore zone, ore extracted, restoration completed) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 0.91 ± 0.02 | | 1 | water of well BL36 (area RPA4, ore zone, no extraction undertaken) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 0.8 ± 0.02 | | 1 | water of well MW25 (area RPA1, oxidising zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 0.99 ± 0.02 | | 1 | water of well MW34 (area RPA1, reducing zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 1.05 ± 0.02 | | 1 | water of well MW45 (area RPA2a, oxidising zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 1.01 ± 0.02 | | 1 | water of well MW66 (area RPA2b, oxidising zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 1.12 ± 0.02 | | 1 | water of well MW75 (area RPA3, reducing zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 0.98 ± 0.02 | | 1 | water of well MW85 (area RPA2a, reducing zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 1.22 ± 0.02 | | 1 | water of well MW102 (reducing zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 1.28 ± 0.01 | | 1 | water of well MW129 (area RPA3, oxidising zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
| Groundwater of the Rosita uranium deposit (baseline and monitoring wells) United States | 1.54 ± 0.02 | | 1 | water of well MW160 (area RPA4, oxidising zone, monitoring well) | Placzek et al. (2016), Uranium isotope composition of waters from South Texas uranium ore… |
