Sample 95ID-81

NavDat sample number 38641 · ANDESITE

Sample

Sample ID	95ID-81
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	fine grained porphyritic with phenos of cpx, oliv, opx, plag, and opaques; lots of glass in g.m.

Latitude	44.2267
Longitude	-114.27
Location	Spar Canyon
State / province	Idaho
Volcanic field	Tl of main effusive phase, Challis Volcanic Group

Age (Ma)	Error	Min	Max	Geologic age	Dated by
49		48	50

Item	Value	Unit	Method
SIO2	57.82	WT%	XRF
TIO2	0.73	WT%	XRF
AL2O3	13.36	WT%	XRF
FEOT	6.72	WT%	XRF
MNO	0.13	WT%	XRF
MGO	8.3	WT%	XRF
CAO	7	WT%	XRF
NA2O	2.98	WT%	XRF
K2O	2.57	WT%	XRF
P2O5	0.39	WT%	XRF
LOI	2.6	WT%	XRF
TOTAL	100	WT%	XRF
NI	148	PPM	XRF
CR	495	PPM	XRF
SC	22	PPM	XRF
V	141	PPM	XRF
GA	20	PPM	XRF
CU	36	PPM	XRF
ZN	66	PPM	XRF
BA	1621	PPM	ICPMS
RB	62.8	PPM	ICPMS
SR	708	PPM	ICPMS
U	4.07	PPM	ICPMS
PB	19.17	PPM	ICPMS
CS	15.91	PPM	ICPMS
TH	11.91	PPM	ICPMS
ZR	171	PPM	XRF
Y	20.78	PPM	ICPMS
NB	16.47	PPM	XRF
HF	4.24	PPM	ICPMS
TA	1.07	PPM	ICPMS
LA	43.07	PPM	ICPMS
CE	75.33	PPM	ICPMS
PR	8.22	PPM	ICPMS
ND	31.79	PPM	ICPMS
SM	6.71	PPM	ICPMS
EU	1.74	PPM	ICPMS
GD	5.38	PPM	ICPMS
TB	0.76	PPM	ICPMS
DY	4.08	PPM	ICPMS
HO	0.75	PPM	ICPMS
ER	1.92	PPM	ICPMS
TM	0.27	PPM	ICPMS
YB	1.69	PPM	ICPMS
LU	0.27	PPM	ICPMS
SR87_SR86	0.70911		TIMS
ND143_ND144	0.51198		TIMS