Sample LC81-694

NavDat sample number 61106 · RHYODACITE

Sample

Latitude	40.4792
Longitude	-121.471
State / province	California
Volcanic field	Lassen Volcanics, Bumpass Sequence

Age (Ma)	Error	Min	Max	Geologic age	Dated by
2.65		0	5.3

Item	Value	Unit	Method
SIO2	69.09	WT%	WDXRF
AL2O3	15.77	WT%	WDXRF
FE2O3	0.59	WT%	WDXRF
FEO	2.14	WT%	WDXRF
FEOT	2.68	WT%	WDXRF
MGO	1.45	WT%	WDXRF
CAO	3.35	WT%	WDXRF
NA2O	4.33	WT%	WDXRF
K2O	2.73	WT%	WDXRF
TIO2	0.37	WT%	WDXRF
P2O5	0.1	WT%	WDXRF
MNO	0.07	WT%	WDXRF
LOI	0.05	WT%	LOI
TOTAL	99.82	WT%	WDXRF
MG_NUMBER	54.6		WDXRF
RB	74	PPM	EDXRF
SR	344	PPM	EDXRF
BA	811	PPM	EDXRF
Y	16	PPM	EDXRF
ZR	156	PPM	EDXRF
NB	8	PPM	EDXRF