Sample LC84-637

NavDat sample number 61279 · RHYODACITE

Sample

Latitude	40.5272
Longitude	-121.52
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	57.1	WT%	WDXRF
AL2O3	18.43	WT%	WDXRF
FE2O3	1.54	WT%	WDXRF
FEO	5.55	WT%	WDXRF
FEOT	6.93	WT%	WDXRF
MGO	3.78	WT%	WDXRF
CAO	8.15	WT%	WDXRF
NA2O	3.37	WT%	WDXRF
K2O	1.08	WT%	WDXRF
TIO2	0.74	WT%	WDXRF
P2O5	0.13	WT%	WDXRF
MNO	0.13	WT%	WDXRF
LOI	0.24	WT%	LOI
TOTAL	100.37	WT%	WDXRF
MG_NUMBER	54.8		WDXRF
RB	22	PPM	EDXRF
SR	547	PPM	EDXRF
BA	294	PPM	EDXRF
Y	22	PPM	EDXRF
ZR	105	PPM	EDXRF
NB	6	PPM	EDXRF