Sample L612

NavDat sample number 60136 · ANDESITE

Sample

Sample ID	L612
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	43.9461
Longitude	-122.185
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
16		14	19

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	59.44		WT%	XRF
TIO2	0.83		WT%	XRF
AL2O3	19.06		WT%	XRF
FEOT	5.73		WT%	XRF
MNO	0.12		WT%	XRF
MGO	2.87		WT%	XRF
CAO	7.02		WT%	XRF
NA2O	3.87		WT%	XRF
K2O	0.84		WT%	XRF
P2O5	0.22		WT%	XRF
TOTAL	100.22		WT%	XRF
LOI	1.42		WT%	XRF

References

du, Bray Edward A; John, David A; Sherrod, David R; Evarts, Russell C; Conrey, Richard M; Lexa, Jaroslav (2006) Geochemical database for volcanic rocks of the western Cascades, Washington, Oregon, and California. U. S. Geological Survey Data Series. 2006.