Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus | 
| Ar-40/Ar-39  | |
|---|---|
| BT | isotopes | 
| .radioactive isotopes | |
| ..Ar-40/Ar-39 | |
| BT | isotopes | 
| .stable isotopes | |
| ..Ar-40/Ar-39 | |
| BT | noble gases | 
| .argon | |
| ..Ar-40/Ar-39 | |
| UF | Ar-39/Ar-40 | 
| RT | isotope ratios | 
| Ar-39 | |
| Ar-40 | |
| SN | This term has multiple hierarchies. |