Sample R28

NavDat sample number 34923

Sample

Sample ID	R28
Rock type	VOLCANIC
Material	IGNEOUS

Location

Latitude	34.2339
Longitude	-109.518
State / province	Arizona
Volcanic field	Springerville

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.84		0.77	0.91

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	50.43		WT%	XRF
TIO2	1.7		WT%	XRF
AL2O3	18.86		WT%	XRF
FE2O3	10.27		WT%	XRF
MNO	0.2		WT%	XRF
MGO	3.05		WT%	XRF
CAO	8.23		WT%	XRF
NA2O	4.23		WT%	XRF
K2O	1.44		WT%	XRF
P2O5	0.9		WT%	XRF

References

Condit, Christopher D (1995) DDM-SVF; a prototype dynamic digital map of the Springerville volcanic field, Arizona. GSA Today, vol.5, no.4, pp.69, 87-88, Apr 1995