U-238/Th-232  search
BTisotopes
 .radioactive isotopes
 ..U-238/Th-232
BTmetals
 .actinides
 ..thorium
 ...U-238/Th-232
BTmetals
 .actinides
 ..uranium
 ...U-238/Th-232
UFTh-232/U-238
RTTh-232
 U-238
SNThis term has multiple hierarchies.