Sample LC84-435

NavDat sample number 61235 · RHYODACITE

Sample

Latitude	40.5267
Longitude	-121.523
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	67.78	WT%	WDXRF
AL2O3	15.81	WT%	WDXRF
FE2O3	0.74	WT%	WDXRF
FEO	2.67	WT%	WDXRF
FEOT	3.34	WT%	WDXRF
MGO	1.77	WT%	WDXRF
CAO	4.08	WT%	WDXRF
NA2O	4.01	WT%	WDXRF
K2O	2.52	WT%	WDXRF
TIO2	0.42	WT%	WDXRF
P2O5	0.12	WT%	WDXRF
MNO	0.07	WT%	WDXRF
LOI	0.18	WT%	LOI
TOTAL	99.58	WT%	WDXRF
MG_NUMBER	54.2		WDXRF
RB	63	PPM	EDXRF
SR	370	PPM	EDXRF
BA	721	PPM	EDXRF
Y	14	PPM	EDXRF
ZR	121	PPM	EDXRF
NB	8	PPM	EDXRF