Sample 87-12

NavDat sample number 21564 · ANDESITE

Sample

Latitude	44.1757
Longitude	-114.196
Location	near Chicken Creek, off Road Creek Road, just past turnoff to Horse Basin
State / province	Idaho
Volcanic field	Challis Volcanics

Age (Ma)	Error	Min	Max	Geologic age	Dated by
45		40	51

Item	Value	Unit	Method
SIO2	55.1	WT%	XRF
TIO2	0.78	WT%	XRF
AL2O3	12.63	WT%	XRF
FE2O3T	8.44	WT%	XRF
MNO	0.14	WT%	XRF
MGO	7.83	WT%	XRF
CAO	7.1	WT%	XRF
NA2O	2.38	WT%	XRF
K2O	3.02	WT%	XRF
P2O5	0.39	WT%	XRF
LOI	1.56	WT%	XRF
TOTAL	99.37	WT%	XRF
RB	145	PPM	XRF
SR	601	PPM	XRF
BA	1384	PPM	XRF
Y	21	PPM	XRF
ZR	189	PPM	XRF
V	154	PPM	XRF
NI	104	PPM	XRF
CR	446	PPM	XRF
LA	40.4	PPM	MS
CE	79.4	PPM	MS
PR	9.11	PPM	MS
ND	37.1	PPM	MS
SM	7.47	PPM	MS
EU	1.77	PPM	MS
GD	5.72	PPM	MS
HO	0.7	PPM	MS
ER	1.78	PPM	MS
YB	1.64	PPM	MS
U	3.26	PPM	MS
TH	13.2	PPM	MS
PB	26.6	PPM	MS
NB	13.1	PPM	MS
HF	4.5	PPM	MS
CS	6.1	PPM	MS
W	2	PPM	MS
MO	2	PPM	MS
PB206_PB204	18.568		TIMS
PB207_PB204	15.623		TIMS
PB208_PB204	39.033		TIMS