Sample 99LC-Q397

NavDat sample number 48327 · BASALTIC-ANDESITE

Sample

Sample ID	99LC-Q397
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	45
Longitude	-122.699
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	52.9		WT%	XRF
TIO2	1.48		WT%	XRF
AL2O3	16.56		WT%	XRF
FEOT	11.19		WT%	XRF
MNO	0.21		WT%	XRF
MGO	4.46		WT%	XRF
CAO	9.22		WT%	XRF
NA2O	3.33		WT%	XRF
K2O	0.48		WT%	XRF
P2O5	0.16		WT%	XRF
TOTAL	100.2		WT%	XRF
BA	142		PPM	XRF
LA	8		PPM	XRF
CE	16		PPM	XRF
RB	6		PPM	XRF
SR	301		PPM	XRF
Y	27		PPM	XRF
ZR	89		PPM	XRF
NB	6		PPM	XRF

References

Evarts, Russell C; Dinterman-Philip (compiler); Block-Jessica (compiler) (2004) Geologic map of the Ridgefield Quadrangle, Clark and Cowlitz Counties, Washington. Scientific Investigations Map. 2004.