Sample CoV-50

NavDat sample number 21703 · TRACHYANDESITE

Sample

Latitude	37.5
Longitude	-106.25
State / province	Colorado
Volcanic field	southeast San Juan volcanic field
Formation	Conejos Formation

Age (Ma)	Error	Min	Max	Geologic age	Dated by
31.25		30.7	31.8

Item	Value	Unit	Method
SIO2	54	WT%	XRF
TIO2	1.19	WT%	XRF
AL2O3	16.47	WT%	XRF
FEO	9.14	WT%	XRF
MNO	0.15	WT%	XRF
MGO	3.27	WT%	XRF
CAO	7.37	WT%	XRF
NA2O	2.88	WT%	XRF
K2O	2.52	WT%	XRF
P2O5	0.51	WT%	XRF
LA	51.7	PPM	INAA
CE	106.5	PPM	INAA
ND	50.5	PPM	INAA
SM	9.55	PPM	INAA
EU	1.92	PPM	INAA
TB	0.99	PPM	INAA
YB	3.07	PPM	INAA
LU	0.45	PPM	INAA
Y	36	PPM	XRF
ZR	319	PPM	XRF
NB	13	PPM	XRF
HF	8.43	PPM	INAA
TA	0.85	PPM	INAA
TH	12.77	PPM	INAA
V	219	PPM	XRF
CR	54	PPM	INAA
NI	76	PPM	XRF
RB	78	PPM	INAA
SR	704	PPM	INAA
BA	722	PPM	XRF
PB206_PB204	17.759		MS
PB207_PB204	15.498		MS
PB208_PB204	37.358		MS
SR87_SR86	0.7046		MS
ND143_ND144	0.512353		MS