Sample 87511

NavDat sample number 37311 · 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
35.3		31.77	38.83

Item	Value	Unit	Method
SIO2	71.49	WT%	XRF
AL2O3	14.6	WT%	XRF
FEO	2.41	WT%	XRF
MNO	0.08	WT%	XRF
MGO	0.23	WT%	XRF
CAO	0.29	WT%	XRF
NA2O	4.97	WT%	XRF
K2O	5.55	WT%	XRF
P2O5	0.07	WT%	XRF
TOTAL	100.71	WT%	XRF
BA	97	PPM	XRF
ZR	689	PPM	XRF
NB	159	PPM	XRF
Y	88	PPM	XRF
ND	86.9	PPM	ICPMS
SM	15.8	PPM	ICPMS
PB	19.7	PPM	ICPMS
TH	56.2	PPM	ICPMS
U	9.59	PPM	ICPMS
SR	18	PPM	XRF
RB	318	PPM	XRF
ND143_ND144	0.512621		TIMS
PB206_PB204	17.867		TIMS
PB207_PB204	15.458		TIMS
PB208_PB204	37.542		TIMS