Sample 87CG-V219

NavDat sample number 21219 · ANDESITE

Sample

Sample ID	87CG-V219
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.1556
Longitude	-122.334
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
34		30.6	37.4

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	59		WT%	XRF
TIO2	1.33		WT%	XRF
AL2O3	15.88		WT%	XRF
FEOT	7.25		WT%	XRF
MNO	0.13		WT%	XRF
MGO	4		WT%	XRF
CAO	6.88		WT%	XRF
NA2O	3.57		WT%	XRF
K2O	1.61		WT%	XRF
P2O5	0.35		WT%	XRF
TOTAL	99.91		WT%	XRF
LOI	1.96		WT%	XRF
BA	295		PPM	XRF
LA	-30		PPM	XRF
CE	38		PPM	XRF
RB	28		PPM	XRF
SR	315		PPM	XRF
Y	32		PPM	XRF
ZR	270		PPM	XRF
NB	16		PPM	XRF

References

Evarts, Russell C; Ashley, Roger P (1990) Preliminary geologic map of the Goat Mountain Quadrangle, Cowlitz County, Washington. Open-File Report - U. S. Geological Survey. 1990.