Sample 2903

NavDat sample number 12912 · ANDESITE

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	56.5	WT%	DCP
TIO2	0.8	WT%	DCP
AL2O3	15.4	WT%	DCP
FEOT	6.87	WT%	DCP
MNO	0.13	WT%	DCP
MGO	7.11	WT%	DCP
CAO	7.68	WT%	DCP
NA2O	3.18	WT%	DCP
K2O	0.92	WT%	DCP
P2O5	0.24	WT%	DCP
H2O_PLUS	0.49	WT%	DCP
H2O_MINUS	0.32	WT%	DCP
CO2	0.01	WT%	DCP
TOTAL	100.1	WT%	DCP
NI	170	PPM	DCP
CR	520	PPM	DCP
RB	23.8	PPM	DCP
CS	1.37	PPM	DCP
SR	849	PPM	DCP
BA	2030	PPM	DCP
PB	13	PPM	DCP
U	0.78	PPM	DCP
TH	1.62	PPM	DCP
ZR	96	PPM	DCP
LA	38.1	PPM	DCP
CE	90.4	PPM	DCP
ND	44.2	PPM	DCP
SM	7.16	PPM	DCP
EU	1.49	PPM	DCP
GD	6.57	PPM	DCP
DY	4	PPM	DCP
Y	23.7	PPM	DCP
YB	2.07	PPM	DCP
RB87_SR86	0.105		MS-ID
SR87_SR86	0.70552		TIMS
SM147_ND144	0.098		MS-ID
ND143_ND144	0.51152		TIMS
PB206_PB204	16.162		TIMS
PB207_PB204	15.223		TIMS
PB208_PB204	36.426		TIMS