Sample 447

NavDat sample number 17907 · RHYOLITE

Sample

Sample ID	447
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	Maximum and minimum ages given are approximations based on average error of previous K-Ar dating.

Location

Latitude	33.2917
Longitude	-108.767
State / province	New Mexico

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
27		23	31

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	74.48		WT%	EDXRF
TIO2	0.1		WT%	EDXRF
AL2O3	12.15		WT%	EDXRF
FEO	0.37		WT%	EDXRF
FE2O3	0.38		WT%	EDXRF
MNO	0.04		WT%	EDXRF
MGO	0.09		WT%	EDXRF
CAO	0.77		WT%	EDXRF
NA2O	4.28		WT%	EDXRF
K2O	3.57		WT%	EDXRF
H2O_PLUS	3.27		WT%	EDXRF
TOTAL	100.35		WT%	EDXRF

References

Bornhorst, Theodore Joseph (1980) Major- and trace-element geochemistry and mineralogy of upper Eocene to Quaternary volcanic rocks of the Mogollon-Datil volcanic field, southwestern New Mexico.