Sample LC81-671

NavDat sample number 61100

Sample

Latitude	40.508
Longitude	-121.482
State / province	California
Volcanic field	Lassen Volcanics, Twin Lakes Sequence, Younger

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

Item	Value	Unit	Method
SIO2	59.65	WT%	WDXRF
AL2O3	17.79	WT%	WDXRF
FE2O3	1.2	WT%	WDXRF
FEO	4.33	WT%	WDXRF
FEOT	5.41	WT%	WDXRF
MGO	4.09	WT%	WDXRF
CAO	6.79	WT%	WDXRF
NA2O	3.74	WT%	WDXRF
K2O	1.53	WT%	WDXRF
TIO2	0.65	WT%	WDXRF
P2O5	0.14	WT%	WDXRF
MNO	0.09	WT%	WDXRF
LOI	0.06	WT%	LOI
TOTAL	100.56	WT%	WDXRF
MG_NUMBER	62.7		WDXRF
RB	45	PPM	EDXRF
SR	518	PPM	EDXRF
BA	446	PPM	EDXRF
Y	21	PPM	EDXRF
ZR	107	PPM	EDXRF
NB	7	PPM	EDXRF