Sample LC84-419

NavDat sample number 61225 · RHYODACITE

Sample

Latitude	40.5317
Longitude	-121.553
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	69.42	WT%	WDXRF
AL2O3	15.39	WT%	WDXRF
FE2O3	0.62	WT%	WDXRF
FEO	2.25	WT%	WDXRF
FEOT	2.81	WT%	WDXRF
MGO	1.41	WT%	WDXRF
CAO	3.43	WT%	WDXRF
NA2O	4.24	WT%	WDXRF
K2O	2.67	WT%	WDXRF
TIO2	0.4	WT%	WDXRF
P2O5	0.12	WT%	WDXRF
MNO	0.05	WT%	WDXRF
LOI	0.86	WT%	LOI
TOTAL	98.34	WT%	WDXRF
MG_NUMBER	52.7		WDXRF
RB	69	PPM	EDXRF
SR	339	PPM	EDXRF
BA	779	PPM	EDXRF
Y	15	PPM	EDXRF
ZR	132	PPM	EDXRF
NB	7	PPM	EDXRF