Sample 1087

NavDat sample number 12922 · DACITE

Sample

Latitude	45.2179
Longitude	-110.23
Location	Independence volcanic suite
State / province	Montana
Volcanic field	HAB high-magnesium andesite to banakite main phase

Age (Ma)	Error	Min	Max	Geologic age	Dated by
84		83	86

Item	Value	Unit	Method
SIO2	63.1	WT%	DCP
TIO2	0.53	WT%	DCP
AL2O3	16.2	WT%	DCP
FEOT	4.24	WT%	DCP
MNO	0.05	WT%	DCP
MGO	2.61	WT%	DCP
CAO	3.21	WT%	DCP
NA2O	3.7	WT%	DCP
K2O	4.06	WT%	DCP
P2O5	0.19	WT%	DCP
H2O_PLUS	0.68	WT%	DCP
H2O_MINUS	0.41	WT%	DCP
CO2	0.01	WT%	DCP
TOTAL	100.8	WT%	DCP
NI	19.8	PPM	DCP
CR	162	PPM	DCP
RB	165	PPM	DCP
SR	675	PPM	DCP
BA	1680	PPM	DCP
PB	9.6	PPM	DCP
U	0.43	PPM	DCP
TH	1.51	PPM	DCP
ZR	72	PPM	DCP
LA	46.2	PPM	DCP
CE	94.7	PPM	DCP
ND	42.1	PPM	DCP
SM	6.52	PPM	DCP
EU	1.29	PPM	DCP
GD	5.8	PPM	DCP
DY	3.16	PPM	DCP
Y	19.3	PPM	DCP
YB	1.62	PPM	DCP