Sample 87513

NavDat sample number 37310 · 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
35.4		31.86	38.94

Item	Value	Unit	Method
SIO2	67.4	WT%	XRF
AL2O3	16.55	WT%	XRF
FEO	2.43	WT%	XRF
MNO	0.08	WT%	XRF
MGO	0.34	WT%	XRF
CAO	1.09	WT%	XRF
NA2O	5.58	WT%	XRF
K2O	5.72	WT%	XRF
P2O5	0.15	WT%	XRF
TOTAL	101.48	WT%	XRF
BA	454	PPM	XRF
ZR	890	PPM	XRF
NB	110	PPM	XRF
Y	61	PPM	XRF
ND	77.2	PPM	ICPMS
SM	14	PPM	ICPMS
PB	21.2	PPM	ICPMS
TH	40.9	PPM	ICPMS
U	8.98	PPM	ICPMS
SR	150	PPM	XRF
RB	207	PPM	XRF
SR87_SR86	0.70587		TIMS
ND143_ND144	0.512676		TIMS
PB206_PB204	17.74		TIMS
PB207_PB204	15.472		TIMS
PB208_PB204	37.648		TIMS