Sample L920A

NavDat sample number 60178

Sample

Sample ID	L920A
Rock type	VOLCANIC
Material	IGNEOUS

Location

Latitude	44.4582
Longitude	-122.336
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	55.33		WT%	XRF
TIO2	2.1		WT%	XRF
AL2O3	15.48		WT%	XRF
FEOT	10.3		WT%	XRF
MNO	0.18		WT%	XRF
MGO	3.59		WT%	XRF
CAO	7.74		WT%	XRF
NA2O	3.42		WT%	XRF
K2O	1.42		WT%	XRF
P2O5	0.44		WT%	XRF
TOTAL	100.16		WT%	XRF
LOI	0.86		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.