Sample 8YC-460A

NavDat sample number 21306 · RHYOLITE

Sample

Sample ID	8YC-460A
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	44.5
Longitude	-110.75
Location	COLUMBIA RIVER BASALT PROVINCE / YELLOWSTONE PLATEAU / MESA FALLS TUFF
State / province	WYOMING
Location comment	ROADCUT HIGHWAY 20 N OF ASHTON YELLOWSTONE PLATEAU VOLCANIC FIELD

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
1.3		1.17	1.43	QUATERNARY

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
F	0.1		WT%	SIE

References

Hildreth, Wes; Halliday, Alex N; Christiansen, Robert L (1991) Isotopic and chemical evidence concerning the genesis and contamination of basaltic and rhyolitic magma beneath the Yellowstone Plateau volcanic field. Journal of Petrology. 32; 1, Pages 63-137. 1991.