Sample 219

NavDat sample number 30590

Sample

Sample ID	219
Rock type	VOLCANIC
Material	IGNEOUS

Location

Latitude	46.918
Longitude	-121.628
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
25		22.5	27.5

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	52.98		WT%	XRF
TIO2	1.54		WT%	XRF
AL2O3	19.89		WT%	XRF
FEOT	8.77		WT%	XRF
MNO	0.13		WT%	XRF
MGO	2.63		WT%	XRF
CAO	10.47		WT%	XRF
NA2O	2.95		WT%	XRF
K2O	0.39		WT%	XRF
P2O5	0.24		WT%	XRF
TOTAL	98.6		WT%	XRF
RB	11		PPM	XRF
SR	341		PPM	XRF

References

Murphy, Mark T; Marsh, Bruce D (1993) Textures and magmatic evolution of intermediate-composition dome complexes; evidence from the northern Tatoosh Complex, southern Washington Cascades. Journal of Volcanology and Geothermal Research. 54; 3-4, Pages 197-220. 1993. doi:10.1016/0377-0273(93)90064-X