Sample LC84-632

NavDat sample number 61276 · RHYODACITE

Sample

Latitude	40.5258
Longitude	-121.522
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	53.26	WT%	WDXRF
AL2O3	19.35	WT%	WDXRF
FE2O3	1.66	WT%	WDXRF
FEO	5.98	WT%	WDXRF
FEOT	7.48	WT%	WDXRF
MGO	4.96	WT%	WDXRF
CAO	10.27	WT%	WDXRF
NA2O	2.77	WT%	WDXRF
K2O	0.81	WT%	WDXRF
TIO2	0.71	WT%	WDXRF
P2O5	0.09	WT%	WDXRF
MNO	0.14	WT%	WDXRF
LOI	0.08	WT%	LOI
TOTAL	100.93	WT%	WDXRF
MG_NUMBER	59.6		WDXRF
RB	13	PPM	EDXRF
SR	584	PPM	EDXRF
BA	176	PPM	EDXRF
Y	19	PPM	EDXRF
ZR	74	PPM	EDXRF
NB	4	PPM	EDXRF