Sample 88CG-V273B

NavDat sample number 21220 · ANDESITE

Sample

Sample ID	88CG-V273B
Rock name	ANDESITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	sill

Location

Latitude	46.2275
Longitude	-122.334
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
31		27.9	34.1

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	59.75		WT%	XRF
TIO2	1.29		WT%	XRF
AL2O3	17.22		WT%	XRF
FEOT	7		WT%	XRF
MNO	0.18		WT%	XRF
MGO	2.71		WT%	XRF
CAO	6.28		WT%	XRF
NA2O	4.05		WT%	XRF
K2O	1.11		WT%	XRF
P2O5	0.43		WT%	XRF
TOTAL	99.72		WT%	XRF
LOI	3.32		WT%	XRF
BA	240		PPM	XRF
LA	-30		PPM	XRF
CE	48		PPM	XRF
RB	18		PPM	XRF
SR	340		PPM	XRF
Y	38		PPM	XRF
ZR	250		PPM	XRF
NB	18		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.