Sample LC84-635

NavDat sample number 61278 · RHYODACITE

Sample

Latitude	40.5277
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	57.91	WT%	WDXRF
AL2O3	18.17	WT%	WDXRF
FE2O3	1.43	WT%	WDXRF
FEO	5.13	WT%	WDXRF
FEOT	6.41	WT%	WDXRF
MGO	3.91	WT%	WDXRF
CAO	8.04	WT%	WDXRF
NA2O	3.27	WT%	WDXRF
K2O	1.26	WT%	WDXRF
TIO2	0.63	WT%	WDXRF
P2O5	0.11	WT%	WDXRF
MNO	0.13	WT%	WDXRF
LOI	0.44	WT%	LOI
TOTAL	100.2	WT%	WDXRF
MG_NUMBER	57.6		WDXRF
RB	29	PPM	EDXRF
SR	511	PPM	EDXRF
BA	349	PPM	EDXRF
Y	18	PPM	EDXRF
ZR	104	PPM	EDXRF
NB	5	PPM	EDXRF