Sample LC84-428

NavDat sample number 61232 · RHYODACITE

Sample

Latitude	40.5125
Longitude	-121.515
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	69.62	WT%	WDXRF
AL2O3	15.53	WT%	WDXRF
FE2O3	0.59	WT%	WDXRF
FEO	2.12	WT%	WDXRF
FEOT	2.65	WT%	WDXRF
MGO	1.29	WT%	WDXRF
CAO	3.38	WT%	WDXRF
NA2O	4.33	WT%	WDXRF
K2O	2.62	WT%	WDXRF
TIO2	0.35	WT%	WDXRF
P2O5	0.13	WT%	WDXRF
MNO	0.06	WT%	WDXRF
LOI	0.51	WT%	LOI
TOTAL	98.77	WT%	WDXRF
MG_NUMBER	52		WDXRF
RB	73	PPM	EDXRF
SR	335	PPM	EDXRF
BA	793	PPM	EDXRF
Y	15	PPM	EDXRF
ZR	132	PPM	EDXRF
NB	8	PPM	EDXRF