Sample LC84-473

NavDat sample number 61241 · RHYODACITE

Sample

Latitude	40.4898
Longitude	-121.548
State / province	California
Volcanic field	Lassen Volcanics, Bumpass Sequence

Age (Ma)	Error	Min	Max	Geologic age	Dated by
2.65		0	5.3

Item	Value	Unit	Method
SIO2	58.53	WT%	WDXRF
AL2O3	18.55	WT%	WDXRF
FE2O3	1.28	WT%	WDXRF
FEO	4.61	WT%	WDXRF
FEOT	5.77	WT%	WDXRF
MGO	3.75	WT%	WDXRF
CAO	7.72	WT%	WDXRF
NA2O	3.48	WT%	WDXRF
K2O	1.19	WT%	WDXRF
TIO2	0.64	WT%	WDXRF
P2O5	0.14	WT%	WDXRF
MNO	0.1	WT%	WDXRF
LOI	1.39	WT%	LOI
TOTAL	98.05	WT%	WDXRF
MG_NUMBER	59.2		WDXRF
RB	21	PPM	EDXRF
SR	620	PPM	EDXRF
BA	339	PPM	EDXRF
Y	15	PPM	EDXRF
ZR	119	PPM	EDXRF
NB	2	PPM	EDXRF