Sample DP142

NavDat sample number 37322 · 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
36.6		32.94	40.26

Item	Value	Unit	Method
SIO2	63.55	WT%	XRF
AL2O3	16.99	WT%	XRF
FEO	4.74	WT%	XRF
MNO	0.04	WT%	XRF
MGO	0.77	WT%	XRF
CAO	2.46	WT%	XRF
NA2O	5.32	WT%	XRF
K2O	4.77	WT%	XRF
P2O5	0.4	WT%	XRF
TOTAL	97.92	WT%	XRF
BA	1184	PPM	XRF
ZR	590	PPM	XRF
NB	46	PPM	XRF
Y	49	PPM	XRF
ND	56.6	PPM	ICPMS
SM	11.2	PPM	ICPMS
PB	15.6	PPM	ICPMS
TH	10.4	PPM	ICPMS
U	2.44	PPM	ICPMS
SR	305	PPM	XRF
RB	101	PPM	XRF
SR87_SR86	0.70545		TIMS
ND143_ND144	0.512645		TIMS
PB206_PB204	17.791		TIMS
PB207_PB204	15.481		TIMS
PB208_PB204	37.672		TIMS