Sample LC87-1203

NavDat sample number 61387 · ANDESITE

Sample

Latitude	40.4737
Longitude	-121.518
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	63.22	WT%	WDXRF
AL2O3	17.7	WT%	WDXRF
FE2O3	0.92	WT%	WDXRF
FEO	3.33	WT%	WDXRF
FEOT	4.16	WT%	WDXRF
MGO	2.77	WT%	WDXRF
CAO	5.92	WT%	WDXRF
NA2O	3.88	WT%	WDXRF
K2O	1.53	WT%	WDXRF
TIO2	0.51	WT%	WDXRF
P2O5	0.14	WT%	WDXRF
MNO	0.07	WT%	WDXRF
LOI	0.91	WT%	LOI
TOTAL	99.22	WT%	WDXRF
MG_NUMBER	59.7		WDXRF
RB	46	PPM	EDXRF
SR	843	PPM	EDXRF
BA	456	PPM	EDXRF
Y	22	PPM	EDXRF
ZR	139	PPM	EDXRF
NB	6	PPM	EDXRF