Sample s_227

NavDat sample number 34167 · RHYODACITE

Sample

Sample ID	s_227
Rock name	RHYODACITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	LAVA

Location

Latitude	42.9946
Longitude	-122.131
Location	CASCADES / HIGH CASCADES / NORTHWESTERN CASCADES / MOUNT MAZAMA / GROUSE HILL FLOW / PACIFIC OCEAN
State / province	OREGON

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.9		0	1.8

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	71.2		WT%	XRF
MGO	0.69		WT%	XRF
RB	59		PPM	XRF
SR	253		PPM	XRF
SR87_SR86	0.70372			TIMS

References

Bacon, Charles R; Gunn, Susan H; Lanphere, Marvin A; Wooden, Joseph L (1994) Multiple isotopic components in Quaternary volcanic rocks of the Cascade Arc near Crater Lake, Oregon. Journal of Petrology. 35; 6, Pages 1521-1556. 1994.