Sample BS4

NavDat sample number 37313 · 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	70.88	WT%	XRF
AL2O3	14.24	WT%	XRF
FEO	3.41	WT%	XRF
MNO	0.04	WT%	XRF
MGO	0.1	WT%	XRF
CAO	0.38	WT%	XRF
NA2O	4.69	WT%	XRF
K2O	5.65	WT%	XRF
P2O5	0.07	WT%	XRF
TOTAL	97.63	WT%	XRF
BA	190	PPM	XRF
ZR	897	PPM	XRF
NB	118	PPM	XRF
Y	72	PPM	XRF
ND	84.3	PPM	ICPMS
SM	15.8	PPM	ICPMS
PB	24.5	PPM	ICPMS
TH	28.6	PPM	ICPMS
U	5.62	PPM	ICPMS
SR	28	PPM	XRF
RB	218	PPM	XRF
SR87_SR86	0.7113		TIMS
ND143_ND144	0.512628		TIMS
PB206_PB204	17.714		TIMS
PB207_PB204	15.463		TIMS
PB208_PB204	37.54		TIMS