Sample CoV-200

NavDat sample number 21707 · 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	62.2	WT%	XRF
TIO2	0.92	WT%	XRF
AL2O3	17.42	WT%	XRF
FEO	5.1	WT%	XRF
MNO	0.1	WT%	XRF
MGO	1.44	WT%	XRF
CAO	3.38	WT%	XRF
NA2O	3.02	WT%	XRF
K2O	2.71	WT%	XRF
P2O5	0.33	WT%	XRF
LA	69.2	PPM	INAA
CE	143.6	PPM	INAA
ND	61	PPM	INAA
SM	11.13	PPM	INAA
EU	1.98	PPM	INAA
TB	1.15	PPM	INAA
YB	3.58	PPM	INAA
LU	0.59	PPM	INAA
Y	42	PPM	XRF
ZR	546	PPM	XRF
NB	27	PPM	XRF
HF	13.38	PPM	INAA
TA	1.51	PPM	INAA
TH	20	PPM	INAA
V	47	PPM	XRF
CR	14	PPM	INAA
NI	18	PPM	XRF
RB	205	PPM	INAA
SR	492	PPM	INAA
BA	1123	PPM	XRF