U-238  search
BTisotopes
 .radioactive isotopes
 ..U-238
BTmetals
 .actinides
 ..uranium
 ...U-238
RTU-238/Pb-204
 U-238/Th-230
 U-238/Th-232
 U-238/U-234
 U-238/U-235
SNThis term has multiple hierarchies.
U-238/Pb-204  search
BTisotopes
 .radioactive isotopes
 ..U-238/Pb-204
BTmetals
 .lead
 ..U-238/Pb-204
BTmetals
 .actinides
 ..uranium
 ...U-238/Pb-204
RTHIMU
 Pb-204
 U-238
SNFor isotopic ratio used in age determination, use U/Pb. This term has multiple hierarchies.
U-238/Pb-206  search
BTisotopes
 .radioactive isotopes
 ..U-238/Pb-206
BTisotopes
 .stable isotopes
 ..U-238/Pb-206
BTmetals
 .lead
 ..U-238/Pb-206
BTmetals
 .actinides
 ..uranium
 ...U-238/Pb-206
RTisotope ratios
SNAs of 1989, for isotopic ratio used in age determination, use U/Pb. This term has multiple hierarchies.
U-238/Th-230  search
BTisotopes
 .radioactive isotopes
 ..U-238/Th-230
BTmetals
 .actinides
 ..thorium
 ...U-238/Th-230
BTmetals
 .actinides
 ..uranium
 ...U-238/Th-230
UFTh-230/U-238
RTisotope ratios
 Th-230
 U-238
SNThis term has multiple hierarchies.
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.
U-238/U-234  search
BTisotopes
 .radioactive isotopes
 ..U-238/U-234
BTmetals
 .actinides
 ..uranium
 ...U-238/U-234
UFU-234/U-238
RTisotope ratios
 U-234
 U-238
SNThis term has multiple hierarchies.
U-238/U-235  search
BTisotopes
 .radioactive isotopes
 ..U-238/U-235
BTmetals
 .actinides
 ..uranium
 ...U-238/U-235
UFU-235/U-238
RTisotope ratios
 U-235
 U-238
SNThis term has multiple hierarchies.