Sample L93

NavDat sample number 60076 · ANDESITE

Sample

Sample ID	L93
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	43.9864
Longitude	-122.249
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	57.32		WT%	XRF
TIO2	1.05		WT%	XRF
AL2O3	18.67		WT%	XRF
FEOT	6.74		WT%	XRF
MNO	0.1		WT%	XRF
MGO	3.11		WT%	XRF
CAO	7.44		WT%	XRF
NA2O	3.98		WT%	XRF
K2O	1.31		WT%	XRF
P2O5	0.29		WT%	XRF
TOTAL	100.04		WT%	XRF
LOI	1.31		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.