Sample CoV-168v

NavDat sample number 21706 · 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	60.5	WT%	XRF
TIO2	0.81	WT%	XRF
AL2O3	15.33	WT%	XRF
FEO	4.04	WT%	XRF
MNO	0.1	WT%	XRF
MGO	1.16	WT%	XRF
CAO	2.82	WT%	XRF
NA2O	5.54	WT%	XRF
K2O	1.61	WT%	XRF
P2O5	0.25	WT%	XRF
LA	70.1	PPM	INAA
CE	145	PPM	INAA
ND	63.8	PPM	INAA
SM	11.5	PPM	INAA
EU	2.02	PPM	INAA
TB	1.24	PPM	INAA
YB	3.8	PPM	INAA
LU	0.65	PPM	INAA
Y	40	PPM	XRF
ZR	532	PPM	XRF
NB	25	PPM	XRF
HF	12.8	PPM	INAA
TA	1.86	PPM	INAA
TH	22.2	PPM	INAA
V	31	PPM	XRF
CR	6	PPM	INAA
NI	13	PPM	XRF
RB	237	PPM	INAA
SR	502	PPM	INAA
BA	1130	PPM	XRF
PB206_PB204	17.954		MS
PB207_PB204	15.524		MS
PB208_PB204	37.46		MS
SR87_SR86	0.70552		MS
ND143_ND144	0.512275		MS