Sample PP8

NavDat sample number 37317 · 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
36.3		32.67	39.93

Item	Value	Unit	Method
SIO2	69.24	WT%	XRF
AL2O3	15.1	WT%	XRF
FEO	3.44	WT%	XRF
MNO	0.05	WT%	XRF
MGO	0.17	WT%	XRF
CAO	0.61	WT%	XRF
NA2O	5.64	WT%	XRF
K2O	5.24	WT%	XRF
P2O5	0.07	WT%	XRF
LOI	0.12	WT%	XRF
TOTAL	97.49	WT%	XRF
BA	28	PPM	XRF
ZR	1302	PPM	XRF
NB	200	PPM	XRF
Y	88	PPM	XRF
ND	137.3	PPM	ICPMS
SM	23.2	PPM	ICPMS
PB	20.9	PPM	ICPMS
TH	29.8	PPM	ICPMS
U	6.87	PPM	ICPMS
RB	191	PPM	XRF
SR	9.9	PPM	MS-ID
ND143_ND144	0.512546		TIMS
PB206_PB204	17.812		TIMS
PB207_PB204	15.483		TIMS
PB208_PB204	37.796		TIMS