Sample RT-1

NavDat sample number 12686 · RHYOLITE

Sample

Sample ID	RT-1
Rock name	RHYOLITE
Rock type	PLUTONIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	31.2667
Longitude	-105.467
Location	Texan Mountain, Sierra Blanca area
State / province	Texas

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
45		38	48

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	74.4		WT%	PER_COM
AL2O3	13.72		WT%	PER_COM
FE2O3	1.03		WT%	XRF
MNO	0.08		WT%	XRF
MGO	0.01		WT%	XRF
CAO	0.7		WT%	XRF
NA2O	4.84		WT%	XRF
K2O	3.92		WT%	XRF
H2O_PLUS	0.28		WT%	XRF
H2O_MINUS	0.08		WT%	XRF
CO2	0.03		WT%	XRF
TOTAL	99.45		WT%	XRF
V	193		PPM	INAA
SR	2047		PPM	INAA
ZR	231		PPM	INAA
BA	1140		PPM	INAA

References

Matthews-William-K III; Adams, John A S (1986) Geochemistry, age, and structure of the Sierra Blanca and Finlay Mountain intrusions, Hudspeth County, Texas. Guidebook - Bureau of Economic Geology, University of Texas at Austin. 23; Pages 207-224. 1986. .