Sample BP0814854

NavDat sample number 16259 · ANDESITE

Sample

Sample ID	BP0814854
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.166
Longitude	-122.385
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
31		27	35

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	58.35		WT%	XRF
TIO2	1.23		WT%	XRF
AL2O3	16		WT%	XRF
FEOT	8.19		WT%	XRF
MNO	0.16		WT%	XRF
MGO	4.28		WT%	XRF
CAO	7.55		WT%	XRF
NA2O	2.93		WT%	XRF
K2O	1.06		WT%	XRF
P2O5	0.25		WT%	XRF
TOTAL	99.99		WT%	XRF

References

Phillips-William-M (compiler) (1987) Geologic map of the Mount St. Helens Quadrangle, Washington and Oregon. Open-File Report - Washington (State). Division of Geology and Earth Resources. 1987.