Sample L61

NavDat sample number 60071 · ANDESITE

Sample

Sample ID	L61
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	43.0484
Longitude	-122.523
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	57.41		WT%	XRF
TIO2	0.94		WT%	XRF
AL2O3	17.7		WT%	XRF
FEOT	6.6		WT%	XRF
MNO	0.12		WT%	XRF
MGO	4.4		WT%	XRF
CAO	7.66		WT%	XRF
NA2O	3.73		WT%	XRF
K2O	1.24		WT%	XRF
P2O5	0.2		WT%	XRF
TOTAL	99.82		WT%	XRF
LOI	0.94		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.