Sample L1272A

NavDat sample number 60206 · ANDESITE

Sample

Sample ID	L1272A
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	44.792
Longitude	-122.108
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
19		14	25

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	59.21		WT%	XRF
TIO2	0.78		WT%	XRF
AL2O3	18.83		WT%	XRF
FEOT	5.54		WT%	XRF
MNO	0.09		WT%	XRF
MGO	3.61		WT%	XRF
CAO	6.94		WT%	XRF
NA2O	4.11		WT%	XRF
K2O	0.73		WT%	XRF
P2O5	0.15		WT%	XRF
TOTAL	99.83		WT%	XRF
LOI	1.25		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.