Sample LC86-955A

NavDat sample number 61357

Sample

Latitude	40.4972
Longitude	-121.488
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	66.78	WT%	WDXRF
AL2O3	16.06	WT%	WDXRF
FE2O3	0.77	WT%	WDXRF
FEO	2.76	WT%	WDXRF
FEOT	3.46	WT%	WDXRF
MGO	2.17	WT%	WDXRF
CAO	4.35	WT%	WDXRF
NA2O	4.05	WT%	WDXRF
K2O	2.39	WT%	WDXRF
TIO2	0.46	WT%	WDXRF
P2O5	0.13	WT%	WDXRF
MNO	0.06	WT%	WDXRF
LOI	0.57	WT%	LOI
TOTAL	99.29	WT%	WDXRF
MG_NUMBER	58.3		WDXRF
RB	73	PPM	EDXRF
SR	348	PPM	EDXRF
BA	717	PPM	EDXRF
Y	16	PPM	EDXRF
ZR	133	PPM	EDXRF
NB	9	PPM	EDXRF
NI	17	PPM	EDXRF
CU	20	PPM	EDXRF
ZN	28	PPM	EDXRF
CR	11	PPM	EDXRF