Sample 87864

NavDat sample number 37312 · 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
35.3		31.77	38.83

Item	Value	Unit	Method
SIO2	70.66	WT%	XRF
AL2O3	14.75	WT%	XRF
FEO	3.2	WT%	XRF
MNO	0.11	WT%	XRF
MGO	0	WT%	XRF
CAO	0.14	WT%	XRF
NA2O	4.8	WT%	XRF
K2O	5.8	WT%	XRF
P2O5	0.06	WT%	XRF
TOTAL	99.63	WT%	XRF
BA	56	PPM	XRF
ZR	1039	PPM	XRF
NB	162	PPM	XRF
Y	93	PPM	XRF
ND	110.6	PPM	ICPMS
SM	20.7	PPM	ICPMS
PB	29.3	PPM	ICPMS
TH	58	PPM	ICPMS
U	11.18	PPM	ICPMS
SR	9	PPM	XRF
RB	296	PPM	XRF
ND143_ND144	0.512676		TIMS
PB206_PB204	17.693		TIMS
PB207_PB204	15.458		TIMS
PB208_PB204	37.541		TIMS