Sample LC81-723

NavDat sample number 61113 · DACITE

Sample

Latitude	40.5417
Longitude	-121.58
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	67.1	WT%	WDXRF
AL2O3	16.06	WT%	WDXRF
FE2O3	0.75	WT%	WDXRF
FEO	2.72	WT%	WDXRF
FEOT	3.39	WT%	WDXRF
MGO	2.05	WT%	WDXRF
CAO	4.31	WT%	WDXRF
NA2O	4.1	WT%	WDXRF
K2O	2.31	WT%	WDXRF
TIO2	0.42	WT%	WDXRF
P2O5	0.11	WT%	WDXRF
MNO	0.06	WT%	WDXRF
LOI	0.78	WT%	LOI
TOTAL	98.65	WT%	WDXRF
MG_NUMBER	57.4		WDXRF
RB	61	PPM	EDXRF
SR	385	PPM	EDXRF
BA	640	PPM	EDXRF
Y	17	PPM	EDXRF
ZR	125	PPM	EDXRF
NB	7	PPM	EDXRF