Sample 74Y-176

NavDat sample number 21311 · RHYOLITE

Sample

Sample ID	74Y-176
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	44.5
Longitude	-110.75
Location	COLUMBIA RIVER BASALT PROVINCE / YELLOWSTONE PLATEAU / RIVERSIDE FLOW
State / province	WYOMING
Location comment	MADISON RIVER OPPOSITE THE BARNS, YELLOWSTONE NATIONAL PARK

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.24		0.07	0.4	QUATERNARY

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
F	0.131		WT%	SIE
LOI	1.19		WT%	IGN

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.