IODP SEDIS - Thesaurus -

Th-230
BT	isotopes
	.radioactive isotopes
	..Th-230
BT	metals
	.actinides
	..thorium
	...Th-230
UF	ionium
RT	Io/Th
	Io/U
	Th-232/Th-230
	U-234/Th-230
	U-238/Th-230
SN	Used for ionium. This term has multiple hierarchies.

Th-230/Ra-226
BT	isotopes
	.radioactive isotopes
	..Th-230/Ra-226
BT	metals
	.actinides
	..thorium
	...Th-230/Ra-226
BT	metals
	.alkaline earth metals
	..radium
	...Th-230/Ra-226
UF	Ra-226/Th-230
SN	This term has multiple hierarchies.

Th-230/Th-232
USE	Th-232/Th-230

Th-230/U-234
USE	U-234/Th-230

Th-230/U-238
USE	U-238/Th-230