Sample LC84-540

NavDat sample number 61251 · DACITE

Sample

Latitude	40.4715
Longitude	-121.497
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	60.3	WT%	WDXRF
AL2O3	17.36	WT%	WDXRF
FE2O3	1.15	WT%	WDXRF
FEO	4.12	WT%	WDXRF
FEOT	5.15	WT%	WDXRF
MGO	4.55	WT%	WDXRF
CAO	6.47	WT%	WDXRF
NA2O	3.72	WT%	WDXRF
K2O	1.47	WT%	WDXRF
TIO2	0.59	WT%	WDXRF
P2O5	0.17	WT%	WDXRF
MNO	0.1	WT%	WDXRF
LOI	0.79	WT%	LOI
TOTAL	98.95	WT%	WDXRF
MG_NUMBER	66.3		WDXRF
RB	32	PPM	EDXRF
SR	565	PPM	EDXRF
BA	480	PPM	EDXRF
Y	17	PPM	EDXRF
ZR	137	PPM	EDXRF
NB	5	PPM	EDXRF