Sample 2156

NavDat sample number 12902 · BASALTIC-ANDESITE

Sample

Latitude	45.2179
Longitude	-110.23
Location	Independence stock
State / province	Montana
Volcanic field	HAT low-K high alumina tholeiitic basaltic andesite through shoshonite to high-K dacite main phase

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

Item	Value	Unit	Method
SIO2	53.4	WT%	DCP
TIO2	0.93	WT%	DCP
AL2O3	17.3	WT%	DCP
FEOT	8.57	WT%	DCP
MNO	0.14	WT%	DCP
MGO	5.41	WT%	DCP
CAO	7.21	WT%	DCP
NA2O	3.9	WT%	DCP
K2O	1.35	WT%	DCP
P2O5	0.51	WT%	DCP
H2O_PLUS	0.48	WT%	DCP
H2O_MINUS	0.27	WT%	DCP
CO2	0.01	WT%	DCP
TOTAL	99.9	WT%	DCP
NI	80	PPM	DCP
CR	158	PPM	DCP
RB	49	PPM	DCP
SR	1180	PPM	DCP
BA	1480	PPM	DCP
PB	18.4	PPM	DCP
U	0.41	PPM	DCP
TH	1.83	PPM	DCP
ZR	95	PPM	DCP
LA	31.1	PPM	DCP
CE	65.8	PPM	DCP
ND	31.9	PPM	DCP
SM	6.04	PPM	DCP
EU	1.69	PPM	DCP
GD	5.33	PPM	DCP
DY	3.29	PPM	DCP
Y	19.6	PPM	DCP
YB	1.72	PPM	DCP