Sample 92-048

NavDat sample number 57503 · DACITE

Sample

Sample ID	92-048
Rock name	DACITE
Rock type	PLUTONIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	46.3203
Longitude	-121.713
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
25		18	33

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	66.01		WT%	XRF
TIO2	0.86		WT%	XRF
AL2O3	15.78		WT%	XRF
FEO	5.31		WT%	XRF
MNO	0.15		WT%	XRF
MGO	1.35		WT%	XRF
CAO	3.58		WT%	XRF
NA2O	4.9		WT%	XRF
K2O	1.77		WT%	XRF
P2O5	0.29		WT%	XRF

References

Swanson, Donald A (1994) Geologic map of the East Canyon Ridge Quadrangle, southern Cascade Range, Washington. Open-File Report - U. S. Geological Survey. 1994.