Sample 84609

NavDat sample number 37319 · RHYOLITE

Sample

Latitude	30.2129
Longitude	-103.651
Location	Davis Mountain volcanic field
State / province	Texas

Age (Ma)	Error	Min	Max	Geologic age	Dated by
36.8		33.12	40.48

Item	Value	Unit	Method
SIO2	48.97	WT%	XRF
AL2O3	15.18	WT%	XRF
FEO	10.19	WT%	XRF
MNO	0.12	WT%	XRF
MGO	9.77	WT%	XRF
CAO	8.76	WT%	XRF
NA2O	3.22	WT%	XRF
K2O	1.29	WT%	XRF
P2O5	0.88	WT%	XRF
TOTAL	96.18	WT%	XRF
BA	460	PPM	XRF
ZR	199	PPM	XRF
NB	16	PPM	XRF
Y	27	PPM	XRF
ND	35.6	PPM	ICPMS
SM	7.3	PPM	ICPMS
PB	4.5	PPM	ICPMS
TH	6.6	PPM	ICPMS
U	1.16	PPM	ICPMS
SR	764	PPM	XRF
RB	13	PPM	XRF
SR87_SR86	0.70386		TIMS
ND143_ND144	0.512734		TIMS
PB206_PB204	17.8		TIMS
PB207_PB204	15.494		TIMS
PB208_PB204	37.665		TIMS