Sample 92-088

NavDat sample number 57504 · DACITE

Sample

Sample ID	92-088
Rock name	DACITE
Rock type	PLUTONIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	46.2937
Longitude	-121.696
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	67.61		WT%	XRF
TIO2	0.61		WT%	XRF
AL2O3	15.68		WT%	XRF
FEO	4.74		WT%	XRF
MNO	0.16		WT%	XRF
MGO	0.94		WT%	XRF
CAO	2.23		WT%	XRF
NA2O	5.68		WT%	XRF
K2O	2.14		WT%	XRF
P2O5	0.21		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.