Sample 87116

NavDat sample number 37309 · 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
35.6		32.04	39.16

Item	Value	Unit	Method
SIO2	63.95	WT%	XRF
AL2O3	16.79	WT%	XRF
FEO	4.77	WT%	XRF
MNO	0.08	WT%	XRF
MGO	0.88	WT%	XRF
CAO	2.24	WT%	XRF
NA2O	4.76	WT%	XRF
K2O	4.87	WT%	XRF
P2O5	0.45	WT%	XRF
TOTAL	99.45	WT%	XRF
BA	984	PPM	XRF
ZR	829	PPM	XRF
NB	60	PPM	XRF
Y	49	PPM	XRF
ND	62.1	PPM	ICPMS
SM	11.7	PPM	ICPMS
PB	18.2	PPM	ICPMS
TH	25	PPM	ICPMS
U	5.08	PPM	ICPMS
SR	408	PPM	XRF
RB	158	PPM	XRF
SR87_SR86	0.70509		TIMS
ND143_ND144	0.51261		TIMS
PB206_PB204	17.707		TIMS
PB207_PB204	15.456		TIMS
PB208_PB204	37.486		TIMS