Sample 2080

NavDat sample number 12901 · 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
84.5		83	86

Item	Value	Unit	Method
SIO2	52.2	WT%	DCP
TIO2	1.11	WT%	DCP
AL2O3	17.4	WT%	DCP
FEOT	8.96	WT%	DCP
MNO	0.15	WT%	DCP
MGO	5.93	WT%	DCP
CAO	8.08	WT%	DCP
NA2O	4.03	WT%	DCP
K2O	0.82	WT%	DCP
P2O5	0.53	WT%	DCP
H2O_PLUS	0.31	WT%	DCP
H2O_MINUS	0.39	WT%	DCP
TOTAL	100.3	WT%	DCP
NI	87	PPM	DCP
CR	163	PPM	DCP
RB	25	PPM	DCP
CS	0.99	PPM	DCP
SR	1050	PPM	DCP
BA	1020	PPM	DCP
PB	17.9	PPM	DCP
U	0.32	PPM	DCP
TH	1.1	PPM	DCP
ZR	49	PPM	DCP
HF	0.74	PPM	DCP
TA	0.1	PPM	DCP
LA	27.2	PPM	DCP
CE	56.7	PPM	DCP
ND	30.2	PPM	DCP
SM	5.73	PPM	DCP
EU	1.7	PPM	DCP
GD	5.15	PPM	DCP
DY	3.01	PPM	DCP
Y	17.3	PPM	DCP
YB	1.55	PPM	DCP
RB87_SR86	0.0378		MS-ID
SR87_SR86	0.70473		TIMS
SM147_ND144	0.115		MS-ID
ND143_ND144	0.51196		TIMS
PB206_PB204	16.692		TIMS
PB207_PB204	15.318		TIMS
PB208_PB204	36.803		TIMS
RB	14.5	PPM	MS-ID
SR	1230	PPM	MS-ID