Sample LC81-661A

NavDat sample number 61098 · RHYODACITE

Sample

Latitude	40.5425
Longitude	-121.539
State / province	California
Volcanic field	Lassen Volcanics, Eagle Peak Sequence

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

Item	Value	Unit	Method
SIO2	55.64	WT%	WDXRF
AL2O3	18.35	WT%	WDXRF
FE2O3	1.58	WT%	WDXRF
FEO	5.7	WT%	WDXRF
FEOT	7.13	WT%	WDXRF
MGO	4.4	WT%	WDXRF
CAO	9.01	WT%	WDXRF
NA2O	3.06	WT%	WDXRF
K2O	1.37	WT%	WDXRF
TIO2	0.66	WT%	WDXRF
P2O5	0.09	WT%	WDXRF
MNO	0.13	WT%	WDXRF
LOI	0.05	WT%	LOI
TOTAL	100.39	WT%	WDXRF
MG_NUMBER	57.9		WDXRF
RB	38	PPM	EDXRF
SR	503	PPM	EDXRF
BA	270	PPM	EDXRF
Y	18	PPM	EDXRF
ZR	91	PPM	EDXRF
NB	1	PPM	EDXRF