Sample LC81-820

NavDat sample number 61142 · RHYODACITE

Sample

Latitude	40.449
Longitude	-121.713
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	72.86	WT%	WDXRF
AL2O3	14.65	WT%	WDXRF
FE2O3	0.42	WT%	WDXRF
FEO	1.5	WT%	WDXRF
FEOT	1.87	WT%	WDXRF
MGO	0.78	WT%	WDXRF
CAO	2.27	WT%	WDXRF
NA2O	4.12	WT%	WDXRF
K2O	3.03	WT%	WDXRF
TIO2	0.26	WT%	WDXRF
P2O5	0.07	WT%	WDXRF
MNO	0.04	WT%	WDXRF
LOI	1.97	WT%	LOI
TOTAL	97.75	WT%	WDXRF
MG_NUMBER	48.1		WDXRF
RB	91	PPM	EDXRF
SR	264	PPM	EDXRF
BA	764	PPM	EDXRF
Y	18	PPM	EDXRF
ZR	114	PPM	EDXRF
NB	6	PPM	EDXRF