Sample LC86-957

NavDat sample number 61358 · RHYODACITE

Sample

Latitude	40.541
Longitude	-121.518
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	68.29	WT%	WDXRF
AL2O3	15.66	WT%	WDXRF
FE2O3	0.69	WT%	WDXRF
FEO	2.49	WT%	WDXRF
FEOT	3.11	WT%	WDXRF
MGO	1.7	WT%	WDXRF
CAO	3.67	WT%	WDXRF
NA2O	4.04	WT%	WDXRF
K2O	2.8	WT%	WDXRF
TIO2	0.47	WT%	WDXRF
P2O5	0.14	WT%	WDXRF
MNO	0.06	WT%	WDXRF
LOI	1.05	WT%	LOI
TOTAL	99.27	WT%	WDXRF
MG_NUMBER	54.9		WDXRF
RB	74	PPM	EDXRF
SR	354	PPM	EDXRF
BA	790	PPM	EDXRF
Y	23	PPM	EDXRF
ZR	161	PPM	EDXRF
NB	7	PPM	EDXRF