Sample LC81-683B

NavDat sample number 61104 · DACITE

Sample

Latitude	40.4685
Longitude	-121.441
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	59.49	WT%	WDXRF
AL2O3	18.96	WT%	WDXRF
FE2O3	1.12	WT%	WDXRF
FEO	4.04	WT%	WDXRF
FEOT	5.05	WT%	WDXRF
MGO	3.48	WT%	WDXRF
CAO	7.04	WT%	WDXRF
NA2O	3.83	WT%	WDXRF
K2O	1.27	WT%	WDXRF
TIO2	0.56	WT%	WDXRF
P2O5	0.11	WT%	WDXRF
MNO	0.09	WT%	WDXRF
LOI	0.81	WT%	LOI
TOTAL	99.62	WT%	WDXRF
MG_NUMBER	60.5		WDXRF
RB	34	PPM	EDXRF
SR	526	PPM	EDXRF
BA	405	PPM	EDXRF
Y	19	PPM	EDXRF
ZR	95	PPM	EDXRF
NB	4	PPM	EDXRF