Sample 81036

NavDat sample number 37325 · 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
36.8		33.12	40.48

Item	Value	Unit	Method
SIO2	74.37	WT%	XRF
AL2O3	10.95	WT%	XRF
FEO	4.87	WT%	XRF
MNO	0.1	WT%	XRF
MGO	0.09	WT%	XRF
CAO	0.31	WT%	XRF
NA2O	3.87	WT%	XRF
K2O	5.03	WT%	XRF
P2O5	0.03	WT%	XRF
TOTAL	98.84	WT%	XRF
BA	20	PPM	XRF
ZR	1348	PPM	XRF
NB	116	PPM	XRF
Y	106	PPM	XRF
ND	95.2	PPM	ICPMS
SM	21.5	PPM	ICPMS
PB	35.7	PPM	ICPMS
TH	32.1	PPM	ICPMS
U	4.26	PPM	ICPMS
RB	196	PPM	XRF
SR	10.1	PPM	MS-ID
ND143_ND144	0.512623		TIMS
PB206_PB204	17.735		TIMS
PB207_PB204	15.457		TIMS
PB208_PB204	37.688		TIMS