Sample 90CG-V647A

NavDat sample number 59820 · DIORITE

Sample

Sample ID	90CG-V647A
Rock name	DIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.0675
Longitude	-122.316
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
36		32.4	39.6

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	54.97		WT%	XRF
TIO2	1.32		WT%	XRF
AL2O3	17.91		WT%	XRF
FEOT	9.4		WT%	XRF
MNO	0.18		WT%	XRF
MGO	3.61		WT%	XRF
CAO	7.47		WT%	XRF
NA2O	4.08		WT%	XRF
K2O	0.75		WT%	XRF
P2O5	0.29		WT%	XRF
TOTAL	100.25		WT%	XRF
LOI	2.2		WT%	XRF
BA	205		PPM	XRF
LA	-30		PPM	XRF
CE	-30		PPM	XRF
RB	18		PPM	XRF
SR	335		PPM	XRF
Y	28		PPM	XRF
ZR	168		PPM	XRF
NB	15		PPM	XRF

References

du, Bray Edward A; John, David A; Sherrod, David R; Evarts, Russell C; Conrey, Richard M; Lexa, Jaroslav (2006) Geochemical database for volcanic rocks of the western Cascades, Washington, Oregon, and California. U. S. Geological Survey Data Series. 2006.