Sample LC87-1211A

NavDat sample number 61391 · DACITE

Sample

Latitude	40.4892
Longitude	-121.507
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	58.31	WT%	WDXRF
AL2O3	18	WT%	WDXRF
FE2O3	1.31	WT%	WDXRF
FEO	4.7	WT%	WDXRF
FEOT	5.88	WT%	WDXRF
MGO	4.45	WT%	WDXRF
CAO	7.34	WT%	WDXRF
NA2O	3.57	WT%	WDXRF
K2O	1.4	WT%	WDXRF
TIO2	0.67	WT%	WDXRF
P2O5	0.14	WT%	WDXRF
MNO	0.1	WT%	WDXRF
LOI	0.06	WT%	LOI
TOTAL	100.5	WT%	WDXRF
MG_NUMBER	62.8		WDXRF
RB	48	PPM	EDXRF
SR	538	PPM	EDXRF
BA	426	PPM	EDXRF
Y	22	PPM	EDXRF
ZR	114	PPM	EDXRF
NB	6	PPM	EDXRF