Sample L1158A

NavDat sample number 60197 · ANDESITE

Sample

Sample ID	L1158A
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	44.6366
Longitude	-122.346
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
21		17	25

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	57.06		WT%	XRF
TIO2	1.46		WT%	XRF
AL2O3	17.28		WT%	XRF
FEOT	8.1		WT%	XRF
MNO	0.14		WT%	XRF
MGO	3.56		WT%	XRF
CAO	7.59		WT%	XRF
NA2O	3.57		WT%	XRF
K2O	0.94		WT%	XRF
P2O5	0.29		WT%	XRF
TOTAL	99.55		WT%	XRF
LOI	3		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.