Sample 92-053

NavDat sample number 57496 · DIORITE

Sample

Sample ID	92-053
Rock name	DIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.3167
Longitude	-121.668
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
20		15	25

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	64.27		WT%	XRF
TIO2	0.71		WT%	XRF
AL2O3	17.25		WT%	XRF
FEO	4.59		WT%	XRF
MNO	0.08		WT%	XRF
MGO	2.24		WT%	XRF
CAO	5.15		WT%	XRF
NA2O	4.15		WT%	XRF
K2O	1.36		WT%	XRF
P2O5	0.2		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.