Sample LC84-454

NavDat sample number 61238 · RHYODACITE

Sample

Latitude	40.5363
Longitude	-121.501
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	69.98	WT%	WDXRF
AL2O3	15.47	WT%	WDXRF
FE2O3	0.54	WT%	WDXRF
FEO	1.95	WT%	WDXRF
FEOT	2.43	WT%	WDXRF
MGO	1.35	WT%	WDXRF
CAO	3.12	WT%	WDXRF
NA2O	4.24	WT%	WDXRF
K2O	2.83	WT%	WDXRF
TIO2	0.36	WT%	WDXRF
P2O5	0.11	WT%	WDXRF
MNO	0.05	WT%	WDXRF
LOI	1.53	WT%	LOI
TOTAL	97.82	WT%	WDXRF
MG_NUMBER	55.3		WDXRF
RB	77	PPM	EDXRF
SR	335	PPM	EDXRF
BA	744	PPM	EDXRF
Y	14	PPM	EDXRF
ZR	134	PPM	EDXRF
NB	8	PPM	EDXRF