IODP SEDIS - Thesaurus -

Pb-208/Pb-204
BT	isotopes
	.radioactive isotopes
	..Pb-208/Pb-204
BT	isotopes
	.stable isotopes
	..Pb-208/Pb-204
BT	metals
	.lead
	..Pb-208/Pb-204
UF	Pb-204/Pb-208
RT	isotope ratios
	Pb-204
	Pb-208
SN	This term has multiple hierarchies.