Jabiluka
Northern Territory, Alligator Rivers (Kombolgie Basin), Australia
UraniumU (Au)
- Type
- Basement-hosted Proterozoic unconformity uranium
Uranium ore sample from the Queen's University collection analysed by Uvarova et al. (2014) for δ238U and δ234U. High-grade unconformity deposit (Polito et al., 2005); fourteen uraninites with δ238U of +0.05 to +0.63 ‰ and δ234U of -39 to +5 ‰. Indicative coordinates.
δ238U in ‰ (per mil) Values of the same system
Standard : NBL CRM 112-A
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.35 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample JU-26-34, Jabiluka; bracketing-only δ238U at +0.38; 238U/235U of 137.885; about -0.25 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.31 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample 0186V-475.0, Jabiluka; bracketing-only δ238U at +0.25; 238U/235U of 137.88; about -0.29 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.41 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample 99J7, Jabiluka; bracketing-only δ238U at +0.35; 238U/235U of 137.892; about -0.19 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.29 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample R129V-207.9, Jabiluka; bracketing-only δ238U at +0.23; 238U/235U of 137.877; about -0.31 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.42 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample N147V-404.5, Jabiluka; bracketing-only δ238U at +0.35; 238U/235U of 137.895; about -0.18 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.41 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample JU-38-41.3, Jabiluka; bracketing-only δ238U at +0.39; 238U/235U of 137.893; about -0.19 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.41 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample JU-37-59, Jabiluka; bracketing-only δ238U at +0.24; 238U/235U of 137.893; about -0.19 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.47 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample S3-115-916, Jabiluka; bracketing-only δ238U at +0.29; 238U/235U of 137.901; about -0.13 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.63 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample V39-226.6m, Jabiluka; bracketing-only δ238U at +0.64; 238U/235U of 137.924; about +0.03 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.29 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample S186V-224.3, Jabiluka; bracketing-only δ238U at +0.29; 238U/235U of 137.877; about -0.31 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.05 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample QUNK-32.3m, Jabiluka; bracketing-only δ238U at +0.11; 238U/235U of 137.844; about -0.55 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.27 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample QUNK-34.1m, Jabiluka; bracketing-only δ238U at +0.34; 238U/235U of 137.874; about -0.33 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.16 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample U135V-179.3, Jabiluka; bracketing-only δ238U at +0.10; 238U/235U of 137.858; about -0.44 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.55 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample V39-235.6, Jabiluka; bracketing-only δ238U at +0.55; 238U/235U of 137.912; about -0.05 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… |
δ234U in ‰ (per mil) Values of the same system
Standard : équilibre séculaire
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −1 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample JU-26-34, Jabiluka. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 2 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample 0186V-475.0, Jabiluka. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 3 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample 99J7, Jabiluka. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 3 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample R129V-207.9, Jabiluka. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 3 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample N147V-404.5, Jabiluka. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 3 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample JU-38-41.3, Jabiluka. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 3 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample JU-37-59, Jabiluka. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 5 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample S3-115-916, Jabiluka. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| −27 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample V39-226.6m, Jabiluka; 234U deficit: uranium loss within the last 2.5 Myr. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| −2 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample S186V-224.3, Jabiluka. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| −4 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample QUNK-32.3m, Jabiluka. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| −1 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample QUNK-34.1m, Jabiluka. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 2 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample U135V-179.3, Jabiluka. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| −39 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample V39-235.6, Jabiluka; 234U deficit: uranium loss within the last 2.5 Myr. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… |
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Cite this page
IsoFind Atlas (2026). Jabiluka, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/jabiluka/ (accessed 2026-10-16).
@misc{isofind2026jabilukaisotopesignatures,
title = {Jabiluka, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/jabiluka/},
note = {Accessed 2026-10-16}
}Updated : 2026-10-16