Sample 7m9c

NavDat sample number 35178 · RHYOLITE

Sample

Sample ID	7m9c
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	33.452
Longitude	-113.39
Location	Eagletail Mountains
State / province	ARIZONA

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
20.2		19.8	20.6

Analyses

Mineral

Item	Value	Std. dev.	Unit	Method
K	7.172		WT%	AR_AR

References

Spencer, Jon E; Richard, Stephen M; Reynolds, Stephen J; Miller, Robert J; Shafiqullah, M; Gilbert, Wyatt G; Grubensky, Michael J (1995) Spatial and temporal relationships between mid-Tertiary magnetism and extension in southwestern Arizona. Journal of Geophysical Research, vol.100, no.B6, pp.10,321-10,351, 10 Jun 1995 doi:10.1029/94JB02817