Sample L143

NavDat sample number 60084 · ANDESITE

Sample

Sample ID	L143
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	44.8035
Longitude	-122.044
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	57.19		WT%	XRF
TIO2	1.7		WT%	XRF
AL2O3	14.73		WT%	XRF
FEOT	9.35		WT%	XRF
MNO	0.17		WT%	XRF
MGO	2.61		WT%	XRF
CAO	8.94		WT%	XRF
NA2O	3.53		WT%	XRF
K2O	1.41		WT%	XRF
P2O5	0.37		WT%	XRF
TOTAL	100.47		WT%	XRF
LOI	1.37		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.