Sample BP0814852

NavDat sample number 16241 · ANDESITE

Sample

Sample ID	BP0814852
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.172
Longitude	-122.426
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
36		35	37

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	58.29		WT%	XRF
TIO2	2.13		WT%	XRF
AL2O3	15.92		WT%	XRF
FEOT	9.33		WT%	XRF
MNO	0.19		WT%	XRF
MGO	2.98		WT%	XRF
CAO	6.51		WT%	XRF
NA2O	3.32		WT%	XRF
K2O	0.82		WT%	XRF
P2O5	0.51		WT%	XRF
TOTAL	100		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.