Sample LC83-227

NavDat sample number 61182 · ANDESITE

Sample

Latitude	40.5005
Longitude	-121.421
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	62.23	WT%	WDXRF
AL2O3	16.73	WT%	WDXRF
FE2O3	1.07	WT%	WDXRF
FEO	3.86	WT%	WDXRF
FEOT	4.83	WT%	WDXRF
MGO	3.28	WT%	WDXRF
CAO	6.28	WT%	WDXRF
NA2O	3.88	WT%	WDXRF
K2O	1.82	WT%	WDXRF
TIO2	0.59	WT%	WDXRF
P2O5	0.16	WT%	WDXRF
MNO	0.09	WT%	WDXRF
LOI	1.04	WT%	LOI
TOTAL	98.45	WT%	WDXRF
MG_NUMBER	60.2		WDXRF
RB	41	PPM	EDXRF
SR	420	PPM	EDXRF
BA	531	PPM	EDXRF
Y	17	PPM	EDXRF
ZR	115	PPM	EDXRF
NB	5	PPM	EDXRF