Sample 91-063

NavDat sample number 57366 · DIORITE

Sample

Sample ID	91-063
Rock name	DIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.3893
Longitude	-121.731
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	62.35		WT%	XRF
TIO2	0.89		WT%	XRF
AL2O3	17.29		WT%	XRF
FEO	5.36		WT%	XRF
MNO	0.11		WT%	XRF
MGO	2.61		WT%	XRF
CAO	6.43		WT%	XRF
NA2O	3.46		WT%	XRF
K2O	1.29		WT%	XRF
P2O5	0.22		WT%	XRF

References

Swanson, Donald A (1993) Geologic map of the Blue Lake Quadrangle, southern Cascade Range, Washington. Open-File Report - U. S. Geological Survey. 1993.