Sample 92-102

NavDat sample number 36897 · DIORITE

Sample

Sample ID	92-102
Rock name	DIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.3807
Longitude	-121.57
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	55.5		WT%	XRF
TIO2	1.27		WT%	XRF
AL2O3	17.54		WT%	XRF
FEO	8.13		WT%	XRF
MNO	0.14		WT%	XRF
MGO	4.23		WT%	XRF
CAO	8.42		WT%	XRF
NA2O	3.58		WT%	XRF
K2O	0.94		WT%	XRF
P2O5	0.25		WT%	XRF

References

Swanson, Donald A (1996) Geologic map of the Hamilton Buttes Quadrangle, southern Cascade Range, Washington. Open-File Report - U. S. Geological Survey. 1996.