Sample LC81-802

NavDat sample number 61131 · DACITE

Sample

Latitude	40.4731
Longitude	-121.504
State / province	California
Volcanic field	Lassen Volcanics, Bumpass Sequence

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

Item	Value	Unit	Method
SIO2	58.62	WT%	WDXRF
AL2O3	17.96	WT%	WDXRF
FE2O3	1.28	WT%	WDXRF
FEO	4.59	WT%	WDXRF
FEOT	5.74	WT%	WDXRF
MGO	4.43	WT%	WDXRF
CAO	7.34	WT%	WDXRF
NA2O	3.5	WT%	WDXRF
K2O	1.31	WT%	WDXRF
TIO2	0.72	WT%	WDXRF
P2O5	0.16	WT%	WDXRF
MNO	0.1	WT%	WDXRF
LOI	0.61	WT%	LOI
TOTAL	99.62	WT%	WDXRF
MG_NUMBER	63.2		WDXRF
RB	31	PPM	EDXRF
SR	531	PPM	EDXRF
BA	507	PPM	EDXRF
Y	18	PPM	EDXRF
ZR	118	PPM	EDXRF
NB	5	PPM	EDXRF