Sample 88CG-V422

NavDat sample number 29509 · ANDESITE

Sample

Sample ID	88CG-V422
Rock name	ANDESITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	dike

Location

Latitude	46.1786
Longitude	-122.396
State / province	Washington

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	59.69		WT%	XRF
TIO2	1.53		WT%	XRF
AL2O3	16.32		WT%	XRF
FEOT	7.77		WT%	XRF
MNO	0.16		WT%	XRF
MGO	2.67		WT%	XRF
CAO	6.99		WT%	XRF
NA2O	3.96		WT%	XRF
K2O	0.61		WT%	XRF
P2O5	0.31		WT%	XRF
TOTAL	99.83		WT%	XRF
LOI	4.56		WT%	XRF
BA	270		PPM	XRF
LA	-30		PPM	XRF
CE	56		PPM	XRF
RB	30		PPM	XRF
SR	370		PPM	XRF
Y	32		PPM	XRF
ZR	220		PPM	XRF
NB	18		PPM	XRF

References

Evarts, Russell C; Ashley, Roger P (1992) Preliminary geologic map of the Elk Mountain Quadrangle, Cowlitz County, Washington. Open-File Report - U. S. Geological Survey. 1992.