Sample 1004

NavDat sample number 12913 · ANDESITE

Sample

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

Age (Ma)	Error	Min	Max	Geologic age	Dated by
92		90	94

Item	Value	Unit	Method
SIO2	56.8	WT%	DCP
TIO2	0.74	WT%	DCP
AL2O3	15.7	WT%	DCP
FEOT	6.93	WT%	DCP
MNO	0.1	WT%	DCP
MGO	7.51	WT%	DCP
CAO	6.74	WT%	DCP
NA2O	3.7	WT%	DCP
K2O	0.96	WT%	DCP
P2O5	0.51	WT%	DCP
H2O_PLUS	0.35	WT%	DCP
H2O_MINUS	0.3	WT%	DCP
CO2	0.01	WT%	DCP
TOTAL	100.8	WT%	DCP
NI	214	PPM	DCP
CR	548	PPM	DCP
RB	15.6	PPM	DCP
CS	0.41	PPM	DCP
SR	835	PPM	DCP
BA	1300	PPM	DCP
PB	10.8	PPM	DCP
U	1.1	PPM	DCP
TH	2.69	PPM	DCP
ZR	93	PPM	DCP
HF	2.73	PPM	DCP
TA	0.18	PPM	DCP
LA	23.4	PPM	DCP
CE	44.4	PPM	DCP
ND	18.2	PPM	DCP
SM	3.42	PPM	DCP
EU	1.02	PPM	DCP
GD	3.6	PPM	DCP
DY	2.01	PPM	DCP
Y	11.8	PPM	DCP
YB	0.99	PPM	DCP
RB87_SR86	0.54		MS-ID
SR87_SR86	0.70522		TIMS
SM147_ND144	0.114		MS-ID
ND143_ND144	0.51156		TIMS
PB206_PB204	16.447		TIMS
PB207_PB204	15.32		TIMS
PB208_PB204	36.494		TIMS